D7 Add on lenses

This page is going to track user reports of which add on lenses and filters work and/or don't work on the Dimage 7 series.

Now including reports of filters also.

When I have permission, I'll just include the reporting person's own words. In some cases, where I read a report on the net but don't specifically have permission, I'll paraphrase the report. If you have tried a lens, send in a report! I reserve the right to edit reports for format and brevity ;) Bryan  E-mail me a report. Please note that I do not personally own all these lenses and filters, I'm just reporting what is sent to me. Thanks to all who have sent in reports.

Near microscopic pictures using 50 mm standard SLR lenses Submitted by Maggy R.

Turn a standard SLR 50 mm lens upside down and mount it with a 49mm to (the filtersize of your lens) both sides outside wire ring on to your D5/D7(i)(hi). With a little superglue you can stick two adapterrings together to suit your needs . Put your camera on a tripod, put the object extremely close to the lens, use a lot of light very near the lens and the object, use MF (manual focus) and make the most incredible close ups. Use spot metering or M (manual control), flash, even with a close up flashring does not help. The pictures will be round, 80 % vignetted, who  cares. I used a Russian Zenith lens, added an extra close-up lens  between the Zenith lens and my Dimage, this increases the size of the "actual" (non-vignetted) picture. The more + the extra lens, the less vignetting. Don't let this miniature world scare you. There are microscopic insects crawling over your skin. Let them, they've been doing this hundreds of millions of years  before the first human existed, they are useful. Easy to get unwanted reflections in the lens.

Canon DP Adapter (DP-10)        

 "papatrout" -          "I was amazed with the DP-10. Super sharp optics, 2x at 4 inches at 200mm, zoom through from 50-200 (no macro lock required). Lifesize at 50 mm at 4 inches and free of any CA, Distortion, and TACK sharp. It could have been designed for the D7!" He adds.. "I bought it about 8-10 years ago, but I have had no luck finding it on the web in a recent search. I gather that Canon has either renamed it or discontinued it altogether. I suspect that used photo equip places are the only source now. Too bad, it is an excellent lens for the D7."

Canon wide converter 0.7X 55mm

Norman B. - "vignettes badly at 28mm - gets decent at 50mm - on D7 that's no as good as no wideangle converter."

Canon Tele-coverter 1.4X 55mm

Norman B. - "works well and has no vignetting through 90mm to 200mm on D7"

Canon 58mm 1.5X tele-converter.              Submitted  by Matt C.

Doesn't work at all.Vignettes from 28 to 200mm(you may  not notice it in the evf when taking an everyday shot at  200mm, but it's noticeable when you see the pic.) and it's worse than the digital zoom(everything but sharp!)  

Canon C-8 1.6X Tele Converter was made for the Canon 518 Super 8 movie camera. (In fact, I had to buy the camera to get the converter - anybody want to buy a movie camera?) Maybe 25 or 30 years old. It has a 48mm rear thread and a 72mm filter thread. You normally see it with the attached sleeve that was used to fit it to the 518. The sleeve can be disassembled from the lens by removing three tiny screws. You can get a 49mm to 48mm step-down ring to match it to the D7. The C-8 arrived before the stepping ring, and I used gaffers tape to tape a 49mm to 55mm step-up ring to the lens-worked fine.

On a 500 pixel crop, I'm seeing the same magnification as the B-300 within 2 or 3 pixels. The C-8 is not as sharp as the B-300 and has a little more chromatic aberration. I don't have accurate scales handy, but the C-8 weighs approximately 1 1/4 lb., as opposed to 9.2 oz. for the B-300. Minolta thinks highly of the lens hood as a weapon ("The rim of the lens hood can cause injury. Take care not to accidentally strike anyone with the camera when the lens hood is attached."), but I think the C-8 would make a much more effective weapon than the lens hood.

Compared to the A-200, (in my opinion) the C-8 is sharper, has more magnification, and has more chromatic aberration. I don't believe that the chromatic aberration will be noticable in normal use. Usable zoom range is very similar to the A-200. The C-8 vignettes a little more than the A-200, but vignetting is limited to the corners from about 100mm to 200mm.

Canon seems to be like the woman who named all her children Johnny -- so she could just call one name and they would all come. They seem to have named quite a few products C-8, including a 1.4X teleconverter, so make sure you know what you're getting.

I discovered during testing that point of focus makes a huge difference in teleconverter magnification. At 4 to 5 feet - photographing the graph paper - magnification for both the C-8 and the B-300 was only about 1.3X.

You can see photos of the lens along with test shots and composites here:

http://www.pbase.com/j_a_hunt/c8

Century Optics Digital Series .55X Reversible Wide Angle Adapter... Submitted by Arthur A.

It is a dual purpose lens that does both a .55x (73° )wide angle andĀ  a 92° fisheye.  Works very well with my 49mm thread Canon optura, but NOT with the Dimage7...  seems like it can't focus at all...  Don't understand why it would work with the optura and not on the Dimage7...

Componon-S 150 mm                          Submitted by "papatrout"

"Both regular orientation and reversed. Useless because of vignetting (seriously so)"

Digital optics add on lenses Submitted by Bob P.

The reseller who sold me my 7i pushed a pair of add on lens at the time  of the sale. I am usually too smart to fall for this tactic, but this reseller has a pretty good reputation for straight dealing and the  salesman assured me that they worked well with the 7i.. Unfortunately I  did not check the tele until far too late to return it. The tele reads "DIGITAL OPTICS JAPAN 2.0X PRO HIGH DEFINITION" just like that, no other  marking anywhere. It vignettes clear out to the 7i 200mm setting and has  auto focus problems. I compared the quality of the image at maximum zoom, manually focused with magnification, to the 7i 200mm image cropped to the same coverage. The cropped 200mm image had better color and was  very noticeably sharper.

The other lens reads "DIGITAL OPTICS JAPAN 0.45X PRO HIGH DEFINITION WITH MACRO." It does not vignette until slightly below the 50mm 7i  setting (22mm effective?). No auto focus problems. 1.4" on my steel scale fills the frame in the 7i 200mm macro setting. The image was fairly sharp in macro, but not crisp. All in all this was far from a bargain at the $199 I paid for the two together as a set.
 

EagleEye 5X

Norman B. - "vignettes badly even at full zoom."

Hama Video objectiv HR2 2x teleconverter  Submitted by Maggy R.

Comes with a nice set of adapter rings. Vignetting only with th D7 lens in wide angle mode. Very good results in tele and macro  modes. Hama has made several different tele-, wide angle and close up lenses, I guess they stopped production, I see them regularly offered on auction sites, all brand new. I payed 15 euro's for mine!

Hitachi 52 mm, .5x WA                            Submitted by "papatrout"

"vignettes horribly"

"Hi Tech Optics" You know it's good because it says "Hi Tech". This is a wide angle converter labled "HI TECH OPTICS Japan 0.42X Professional High Speed auto focus deluxe super wide angle lens" What a piece of junk! I got this lens in a trade. And exactly what is autofocus about it? I think that this is the same lens design that is sold as "Titanium" even though there is no Titanium in it. It has 62mm and 46mm threads, I used a 49mm to 62mm step up to attach it to the DiMAGE. It produces a circular fisheye type image that almost fits in the frame at wide angle, with about two times the coverage of the 28mm native lens. The effect is similar to a "fisheye" lens, complete with severe barrel distortion and chromatic abberation. I'd estimate that the coverage is a little less than 180 degrees, maybe about 150. I'm not sure what this lens is good for ;) but it might be good for taking pictures of the sky; meteor showers and aurora. -Bryan

Hoya 49mm close up lens. Works great, even with three lenses stacked (+4, +2 +1). No vignetting in macro mode due to full telephoto. Some softness at edges for perfectly flat subjects. (OK< maybe this is actually a filter, but I have it here in the lens section) -Bryan

Hoya 49mm Close up lens

the Hoya 49mm close-up lens work fine.
I got a +1 diopter one for £2.50 from the same shop as the A200
(must visit there more often!) - Sophie W.

Jessop zoom close-up attachment - Submitted by Maggy R.

Originally sold as a Canon add-on lens. Hard to  find but worth its money for all close-up fanatics. Comes standard with a Ser VII-55mm ring, but Ser VII-49mm is a standard ring that most camera shops can  sell you inder 5 $/euro. No vignetting whatsoever, very well coated, hard to create unwanted reflections in the lens.

Kenko KUT-300hi  3X tele lens

This lens vignettes quite a lot, but with the digital  zoom there is no vignetting.

This lens is not completely 3X, but very near.  My calculations show 2.7X.

When used with digital zoom, it can be quite useful  when something is far away. In some situations there may be a slight "bluish"  line where there is big differences in contrast, but overall I think it is worth the prize. - Stale R.

Marexar Ultrawider Submitted by Maggy R.

This lens was meant as a wide angle video add-on lens. To my surprise it's a perfect fisheye lens when mounted on a Dimage 7. The vignetting is equal to any fisheye lens, a round image. It covers almost 180  degree, I can see both my feet, the sky above my head and everything that's left and right of me. In focus! Zoom to "200mm" and the fisheye effect is still visible (bent straght lines), but the vignetting's gone. Easy to get unwanted reflections in the lens.

Kenko KVC20 2X tele lens   vignettes badly, resolution lower than digital z
                 oom. Submitted by  "aturoff"

Olympus A200 1.5X.                                  Submitted by Kaylee

This lens was designed for use on their IS series bridge cameras - and which I picked up secondhand for a reasonable price.

 Good thing about the lens is that it is 49mm thread fitting, and the rear element sits really close to the front element of the D7 lens - so much so that I hoped I would not hear the sound of glass faces meeting! From inital test shots under tungsten, plus cloudy shots between 50 and 100 feet it performs very well with no vignetting. I also tried it in macro mode, which got me to about 9 inches from subject to front element. If you see one at a good price then it is definitely worth a go to get a cheap 300mm lens.

Olympus IS/L A-200 H.Q. CONVERTER 1.5X     Sent in By Jim H.

The A-200 is a nice fit with 49mm threads, it's light enough, and doesn't vignette from about 100mm to 200 mm.  I don't see any added chromatic aberration. The only problem is that I can see very little (if any) increase in resolution over a cropped and resampled shot with the bare D7 lens.  You don't gain anything for macro photography with this lens.

If all you need is a reduced depth of field, it's a great choice.  You don't lose any resolution -- you just don't gain any. Also, if you want to take the shot and print it straight off the card without cropping, it will do well for you.
 

Sample shots and some composite comparisons here:
http://www.pbase.com/j_a_hunt/gallery/a200

Kenko LD-20T I saw Kazutoku's web site with pictures taken with a G1 and a new (at least it's not sold in the U.S.) Kenko lens, the 1.85X Kenko LD-20T. The only place Google could find that sold them was in Germany.  I bought one and tried it out.  I was really surprised that it was so good on the G1 and so bad on the D7.  The vignetting was expected, but the chromatic aberration and "looking through a Coke-bottle-bottom" effect was awful.  Just thought I'd warn other Dimage 7x'ers away from this one. Submitted by Tom D.

Olympus A-200 converter 1.5X. Submitted by Sophie W.

Another vote on the Olympus A200 1.5x - it works well for me, not vignetting from about 120mm on the D7. Similar result if you screw it onto the Hoya Skylight filter(!). No obvious reduction in lens speed, either. (I found one second hand at £40, so it was a bargain, and the shop showed it working on their D7, too.)

 

Olympus A-200 teleconverter  See the mini-review on this site.

 

Olympus A-28 0.8X Wide angle adapter. Submited by Sophie W.

I've just bought an A28 (Olympus wide angle .8x) and it seems to work reasonably well (provided you screw it directly to the D7, that is) at wide settings, but as you zoom through it the picture becomes excessively blurred. I'd more-or-less assumed that... I could leave the A28 on all the time and just zoom through it for the odd telephoto shot - it still lets you get up to 160mm after all. But that turns out not to be the case, at least with this one...

 Anyway, I did a set of test images with both the A28 and the A200. The images are stored in http://www.sophie.org.uk/lenstest/ as 1:2 decimations of the original camera images. This is what they are:

4077: Camera with Kenko filter, 28mm
4078: Camera with Kenko filter, 200mm
4079: Camera with A28, 28mm
4080: Camera with A28, 35mm
4081: Camera with A28, 50mm
4082: Camera with A28, 100mm
4083: Camera with A28, 150mm
4084: Camera with A28, 200mm
4085: Camera with A200, 100mm
4086: Camera with A200, 150mm
4087: Camera with A200, 200mm
4088: Camera with Kenko filter with A200, 100mm
4089: Camera with Kenko filter with A200, 150mm
4090: Camera with Kenko filter with A200, 200mm

Its pretty obvious (4083, 4084) that you can't keep the A28 on all the time (shame!) - indeed, when taking 4084, the autofocus didn't work and I switched to manual. There is a difference between 4087 and 4090 (beyond the tripod not quite holding the same position) but not enough to worry about as far as I can see looking at the originals - I tend to prefer the look with the skylight filter there, so I'll probably continue to do that
.
 

Olympus TCON-17 Submitted by Edward van H.

Delivers nice sharp pictures which vignette slight at the corners.I still had around 2100 x 1750 pixels which were usable (shot in raw) which still gives around 3.6 MPixel usability. (I didn't use digital zoom,which doesn't show vignetting)YMMV however because one edge was a little bit more unusable (it looks like my lens is not perfectly centered). The magnification is about 1.7x. requires 55mm step up ring.

Olympus TCON-17 Submitted by Sandy W.

Just bought an Olympus TCON 17 (1.7x teleconverter)  for use with a Dimage 7i and sample images can be seen on:

http://www.fototime.com/inv/C363BC2891A0680

It vignettes, but not too badly and is not so heavy  or cumbersome that it is a problem to use.Ā  I've tried it with uv filters  attached and there is little difference to the vignetting.

Kenko VC-200HI 2x telephoto vignettes slightly at 200mm, but quality isn't really any better than digital zoom due to blurring at the edges. (though lens plus digital zoom might actually be useful. -Ralph B.

Kenko KRW-065Pro wide angle lens   Submitted by Taylor R.

Kenko KRW-075 wide angle lens

I tested both of these lenses at my local camera store.  I had hoped they might work, since they have 58mm mounting threads. Unfortunately, they both vignette badly.

Olympus A-28 Wide angle adapter. Submitted by Kalee

A little while back I happened to see a secondhand A28 lens for sale in the UK. On the basis that the A200 worked it looked to be a good bet. It gives you a 22.4mm optic, is very light, but vignettes in the corners at all aperture. Mind you, in Photoshop it is usually only a few seconds work to get rid of it.

On the few shots taken the quality seems pretty good. The lens is only of relatively limited use as the 28mm end of the D7 covers most requirements.

Olympus IS/L A-Life Size Macro H.Q. Converter F-13cm - Art C.

 

Works great. Thread Converter on D7 (has 49mm threads) zoom out and  lock the macro mode and she is ready to shoot.:

Olympus C-210 1.9X Teleconverter - Jim H.

The C-210 is at least as good (quality-wise) as the  B-300.  On some photos I can't tell a lot of difference.  On some others I see the C-210 as slightly better. Combining these two lenses gives a significant increase in resolution.

With the C-210, vignetting brings useable pixel  count down to a little over a megapixel.  If you're photographing  songbirds, squirrels, etc.  This may not be a problem.  If you're  doing landscapes the lens is useless because of the extreme vignetting.  Adding the B-300 to the C-210 brings the usable resolution down to almost exactly 1,000 X 1,000 pixels.

The C-210 is much lighter and smaller than the B-300 and can be purchased new for less than $70.00 (USD).  It's certainly  worth considering for specialty uses.

Kodak 2.0X teleconverter   Submitted by "Mike"

Tested on the Dimage 7i. This lens was meant for older Kodak digital cameras, I used it on a DC-290 previously. Mounting this lens to the Dimage 7i requires a rather serious 49 to 37 mm adapter ring, and to be honest I thought it was not going to work as well as it did. I only tested it with the D7i lens zoomed all the way to telephoto (200mm). The results are moderate vignetting, the image would have to be cropped( unless you like the spy camera look) but the image is still pretty sharp and well focused across all the good portion of the frame. The auto focus worked fine with this lens added to the camera. I think I will keep this lens around, it definitely could have a use one day if I need to photograph something small and kind of far away like the flag in the test shots, and I do already have the lens anyway, so there is no cost involved in keeping another tool in my bag of tricks.

See Mike's shots with this lens at... http://www.mike721.com/teleconvertertest.htm

 

Olympus B300 1.7 teleconverter                 Submitted by Broek L.

Broek L. - "I was very impressed with the results. You can only use it at full tele, otherwise you get vignetting. The pictures are tack sharp with no noticeable distortion. The combo is prone to flare though. I will try to put up some examples on the web, once I have recovered from a bad system crash on my home PC.

Leon - " B300! It works like a charm with the D7, although only at full tele. In some early messages someone said there was some slight vignetting with this combo, but so far I don't see this in my pictures."

 

Olympus TCON-14B Subnmitted by Chun-Hung C.

 You will need 49mm->62mm connecto. D7 will work through 80mm to 200mm and no vignetting.

Olympus wide angle converter. I use a 0.8x wideangle converter from Olympus with fine results.Don“t know the exact name. It has a 55mm thread (need step down ring).  Price is about $120It shows slight vignetting, but if you crop it, you have around 24mm.

Phoenix .25x Super Fisheye submitted by Anthony C.

WOW!!! It's honestly not everyday I discover an add on lens that actually impresses me... well, today's the day. The Phoenix Super Fisheye .25x lens is super cool! Right off the bat, the lens works extremely well with the new Minolta Dimage 7i. The 7i already has an impressive .28mm wide angle but, theĀ  Phoenix Super Fisheye adds a whole new dimension to Wide Angel. With the Dimage 7i set to the 50mm mark, the lens produces a nearly perfect circle... a perfect fisheye... with lots of barrel distortion, a great effect and AMAZING wide angle. With the Dimage 7i set to the 100mm mark, the Phoenix lens produces a great fisheye effect at approximately 7mm, with typical fisheye barrel distortion... also a fabulous effect. 

For the entire review and photo examples, click the link below

http://www.congiano.com/Photography/PoenixFisheye.htm

He adds...

I had a chance to compare the old Phoenix 2x HI MAG lens and the new Phoenix 2x Digital lens on the 7i... the older HI MAG version produces a good if not very good result with the Dimage 7i, the image is sharp edge to edge, with only a slight shadow of vignette, mostly in the upper edges. Both lenses are true 2x lenses, they really do double the focal length to 400mm!!! Unlike the Crystal Optics 2x lenses which are, in reality, only 1.5x at best and work rather poorly with the 7i. I got the best result with the HI MAG lens when the camera's exposure was increased to +1.0

The older Phoenix HI MAG 2x lens works quite well with the 7i; maybe, almost as well as the Olympus B-300??? Eh, maybe yes maybe no... but, there's not doubt it's a heck of a lot cheaper than the Olympus lens and it is really is a true 2x. however, the newer Phoenix Digital lens does not work well with the Dimage series.

Here is my complete review along with examples...

http://www.congiano.com/Phoenix digital 2x.htm

Sony VCL-ES20 2x telephoto lens. Submitted by Jet W.

This works Ok, but has significant vignetting except at extreme telephoto  settings. At 200mm and 2x digitial zoom, the area is more or less full frame. Slight chromatic aberration evident, increasing towards the edge of the field.

Main problem is that the add-on lens alters the focus point of the camera  lens. The camera is fooled into believing that objects at infinity are (according to the camera manual focus info) only 3 metres away. Consequently, one can't focus on objects nearer than a few feet.

On the plus side, it's perfectly possible to read text that is less then an  eighth of an inch high in images captured from 10 feet away.

 Raynox .66x wide converter made for Canon G1 (52mm thread)  Submitted by "Icypeak"

"had unacceptable vignetting."

 

Raynox 0.30x semi fisheye. Submitted by Andre

Didn't have time to test enough but had trouble focusing manually or not. Doesn't seem to be compatible.

Raynox TP-2000 2x tele converter (49mm thread) Submitted by "Icypeak"

"Gives mild vignetting at full telephoto, but has produced some fairly decent images (not as sharp as I would like)."

Sony VCL-R2052. Submitted by Bill H. Already had this lens, so I tried it with the 7i. It's 52mm, so I used a stepping ring. But it doesn't work very well. Vignettes even at max zoom, though not badly. However, you're better off shooting without it and resizing the  picture. Below are links to two test shots I took. The first is with  the lens, shooting at 200mm. The second shot was cropped and resized from a  picture taken without the lens. It's approximately the same size and area as the other shot (okay, it's zoomed in a little more), and was also taken at 200mm.

http://wthall.com/pix/with.jpg
http://wthall.com/pix/without.jpg

Soligor 1.5x/52mm with step down ring              Submitted by Arnd J.

Doesn't work on the D7. It's vignetting even at max. tele.

Soligor Digital 1.5x Teleconverter (52 mm, with step-up ring) Submitted by Petteri S.

- Vignetting (barely) under control; corners darken silghtly at 200mm but  are not completely obscured
- Sharpness terrible; even at f/8 only the central area of the picture is sharp
- Verdict: you're better off cropping and up-ressing. Pity, because it's small, compact, light, and the same color as the D7i.

Soligorn Digital 2x Teleconverter (37 mm, with supplied step-down ring) Submitted by Petteri S.
- Vignettes badly even at 200 mm, corners completely black, darkened area  extends a good bit into the frame; although if the lens was _really_ good  otherwise, it might be acceptable for some
- Sharpness is unacceptable, although better than on the 1.5x; it gets quite soft towards the corners
- Chromatic aberration is bad; shows very clearly even on a test shot of a calendar all apertures (don't want to imagine what it looks like in real  condtions)
- Verdict: slightly better than the 1.5x, but still useless for the D7
i

Sony VCL-ES06 0.6X                     Submitted by Rick D.

"does not work "

Sony VCL-CPJ07 wide angle 0.75x  Submitted by Sun F.

"Doesn't work." Very Very big vignettes in all aperture from D7i's  28mm to 100mm. I think the focus legth of Sony's lens are very  different from Minolta's . So I suggest do not buy any Sony lens if u are using Minolta's camera.(The Sony VCL-CPJ07 wasted me over $65 .)

Tiffen WA adapter sold by 47th st. photo. -This letter written by Chris H.

 "I just received the Tiffen WA for DiMage 7 that you sent to me on September 24th.

The WA adapter is useless.
It can only be used as of 13 mm focal length (35mm equivalent = 50mm) because of heavy vignetting. It is also hopelessly out of focus in all but the very center of the image. I would like to know why you market it as an accessory  for Minolta DiMage 7. apart from the 49 mm screw thread this accessory is totally incompatable with the DiMage7 camera.

Can I return the adapter to you for a refund?"

 

Sony MHG07 0.7x wide angle converter Submitted by  Brett B.

I have a ony MHG07 0.7x wide angle converter that I used to use w/ my Oly C-2100. It has a 52mm mount and since my step up ring was attached to my Oly when it was stolen, I tested the MHG07 on my D7i by steadily holding it up to the lens (so, YMMV). There was definate vignetting, but not enough to say that this lens would not be useful. However, I was unable to get the camera to focus at all. Auto focus (regular and macro mode) failed. On manual focus, I could get it nearly in focus at the 0.3m setting, but that was all. The resulting photos were unacceptably out-of-focus.

Obviously, the camera could not focus close enough to take advantage of the lens. I tried holding it further out from the camera and did succeed in getting a pretty clear shot off w/ manual focus, but at that distance, the vignetting made the pic a fisheye shot.

Titanium 2X AF by Rolf R.

Just bought a  Titanium 2X AF on ebay real cheap ($52.00 new including shipping). Have newer seen anything vignette so bad on all focal lengths  on  my...

 

0.48 Titanium from 47th st photo. It requires a step down ring.

I returned it. It started to vignette at 52mm in the 28-200 Dimage 7 focal length. That meant it gave me very little that I couldn't get without the add on lens. A waste of time.

Titanium WA and the 2X Tele (Sakor)  by William H.;  neither were usable. They both vigette to the point of blocking any gain in picture area. I was told by Worldwide Direct that I would receive a credit, but  not told how much would taken off the total price. The lenses were included in a package.

Vivanco VC 95/1T 2X teleconverter - Submitted by Sophie W.

A definite no vote for the Vivanco VC 95/1 T 2x teleconverter. Its 52mm and needs a stepping ring (supplied) to fit onto the D7. Its rear element seems much larger than the A200, but in fact it vignettes badly - it even vignettes at 200mm (just). It has a lot of chromatic aberation, also. And its nearly twice as heavy as the A200. At £70, its going straight back.

Wiser Wide Angle Video Lens  - Submitted by Maggy R.

This lens is just about useless for our Dimages in it's standard shape. The lens positioning rings are glued in, it took me a lot of muscle and elbow grease to take it apart, cut away most of the front and back of the housing, glued a Cokin 49 mm ring to the back, glued in the back lens,  experimented with the position of the front lens and the result was a non-vignetting wide-angle add-on lens that has about the effect of a 20mm on a  normal SLR. Straight lines hardly bend. Auto focus can get a little confused, to my surprise even after taking this lens off!? After a few times focussing  near/far, the camera gets back to normal. Easy to get unwanted reflections  in the lens.

Filters!

I'm extending this to include filters. Because of the vignetting problem with some filters, people are going to want to know what works. The filter section is one big list.

Before you ask, here is the story on filters in a nutshell:

 

49mm filters: Almost all 49mm filters vignette at wide angle. There are a handful of thin profile filters that do not, but there is camera to camera variation so you really have to test with your own camera.

52mm step up rings: Almost all vignette.

54mm step up rings: Almost all vignette.

62mm step up rings: Most do not vignette, but there is camera to camera variation. 62mm  is your best bet if you are buying filters and rings sight unseen, but be aware that you can still have problems, especially with thick filters.

 

B+W klass 87 IR-filter (B+W 52E 093) 52mm with 49mm adapter.  "B+W klass 87 IR-filter (093) 52mm with 49mm adapter. Excellent filter, Vignettes in full wide, at around 35mm zoom the vignetting is gone. This might be solved with an adapter that is shallower, but havn't tried since this is acceptable for my experiments with IR. Another solution for a buyer is to buy a 55mm filter with adapter, this should take it  outside the the vignetting zoom. B+W doesn't seem to have 49mm filters of this type (I could be wrong though). -Bo. E.

 B&W 093 Slim IR filter.  This was a special-order item from B&H and took about 6 weeks to arrive after I placed the order.  The  filter is indeedĀ very slim and has no front threads (and didn't include a press-on lens cap, although the B&H site said it would).  The good news  is there is no vignetting at any focal length, and, as with all B&W filters,  it's a solid brass ring -- nice, rigid feel to it.  I can certainly live without the front threads or lens cap, as I don't typically leave the  IR filter on for more than a few shots at a time. - Hal M.

B+W Slim UV. slim model of the B+W 49mm UV that vingetted slightly from about 28-35mm.... -Peter H.

B+W Slim Line Circular Polarizer has a slight amount of vignetting in the upper and lower right corners.  I can live with this small amount.  I was surprised to get any vignetting as this filter is so thin. - Bob S.

Crystal Optics 49mm UV does not vignette, at least I don't think it does... since I am not familiar with what vignetting looks like!  I don't see any obviously dark areas around the edges of the image. -Michael C.

Cokin filters: I am happy to report that the Cokin A series mount and filters work  excellently with the D7. Absolutely zero vignetting at 28mm wide angle or any other length. Why Minolta has not spray painted a Cokin A series w/49mm adapter silver and called it a Dimage/Cokin filter set is beyond me. (They own or  distribute for Cokin, right?) I now own a 49 adapter A-mount, ND 4X, ND graduated, Polarizer, and 81b warming filter (probably not needed), plus a Cokin lens cap. - Scott S.

Cokin Filters: I purchased a UV and Circular Polarizer filter kit from www.cdw.com.  These filters are manufactured by Cokin and work well with the Dimage 7i.  No vignetting at all. I was also able to attach the circular polarizer and UV filter back to back with no vignetting.  Order details follow:
===================================================================== =======
   ORD.   SHIP   ITEM NO. DESCRIPTION                    UNIT PRICE  EXT. PRICE
       1       1   310588  MINOLTA INTRODUCTION KIT 49MM      26.83 26.83
===================================================================== =======
Link to info at CDW:
http://www.cdw.com/shop/search/results.asp?key=310588&x=42&y=7 -Pete N.

Heliopan UV -0 49mm Slim Version filter today and have taken a few shots with it at different ranges.  I only notice very, very slight darkening in the left corner, but from what I've read on other posts, this happens without filters as well. Anyway, I think this is very acceptable AND it still has threads so I can put the Minolta "hard" lenscap on.  Also, I have to say that this is possibly the most solid feeling filters that I have ever seen (a little background...I worked for an aerial photography some time ago and also spent 5 years with Ritz Camera in sales and lab...many moons ago, though!). I purchased it through http://www.kbcamera.com, but there are other places I've seen it at as well.  I went with them, since I didn't have to talk to anyone to order! - Anthony C.

49mm Heliopan Slim Circular Polarizer (no front threads) - Anthony C.
It vignettes between 28mm - 35mm, and then disappears somewhere between
35mm - 50mm which is better than the others I've tried. It is only
slightly thicker than Heliopan's 49mm UV Slim which does not vignette at
all at any focal length. I think what causes this one to vignette is the
retaining ring which the UV does not have.

Hoya UV(0) 49mm. Excellent filter, no vignetting.

Hoya UV(0) - my old filter vignettes a little bit at 35 mm, but 28 mm is clean Marko B.

Hoya HMC UV (0) 49mm

It vignettes pretty badly at 28mm, any aperture. Still vignettes a little at 35mm. Not sure what the other two people were talking about..... *I thought I'd email you b/c I bought this filter b/c it was reasonablly  priced and two people on your add-on page said it was fine, even though two others said it vignetted. I was hoping it vignetted a small amount....* -David M.

Hoya SuperĀ Pro1 49mm  PL=CIR  This filter does not vignette at 28mm  wide on my Dimage 7i. The filter is only 5mm thickĀ overall andĀ has front threads on it - so the dimage lens cap snaps into it. Because the filter is so thin you need  to be a bit nimble fingered to turn the polarising ring. This is a high quality  polarizing filter with 7 layers of multi-coating on the rear surface and a  neutral colour balance. I got mine from www.srsmicrosystems.co.uk for £52.00  (inc vat and delivery) and I'm very pleased with its performance. - David F.

Hoya CirPOL 49mm. Circular polarizer. No vignetting, good filter.

Bryan, I do not know where you got your information about the Hoya polarizer you have posted on your lens/filter page for the D7, but it is WRONG . Ā Both myself and Gordon (another poster on this page) have tried the Hoya polarizer and have had the same results.  It VIGNETTES . Please correct your page before other people spend money on this polarizer. - Bob S.

Hoya PL-CIR (my old polarizing filter) - it vignettes BADLY up to 50 mm Marko B.

Hoya Super Pro 1 PL-CIR - vignettes a little bit (same as the old UV(0) IMHO), BTW it has front threads and I can use the original lens cap with it. Marko B.

Hoya 49mm UV(0) Pro 1 Super HMC filter

This filter is only 3mm thick, instead of the usual 5mm, and yet it still has front threads on it. Because it is so thin, there is no vignetting. -Taylor R.

Hoya HMC Pro1 shows a trace of vignetting at f2.8 and one image showed a hint of vignetting at f3.5 but another (on the next day)  seemed clean.Ā  Of course, I've had the advantage of looking at the full  quality images which helps when the differences are so slight. -Sandy W.

Hoya Super Pro 1 UV(0) slim multi coated filter - there's only a tiny, tiny bit of vignetting (BTW the coating is really superb!) - Marko B.

Hoya 58mm Ultra Cir-Pol + UV filter

Mounted on a 49mm-58mm step-up ring, this 5mm thin circular polarizer does not vignette. The Hoya Super HMC Thin Cir-Pol is also 5mm thick and therefore should also work (though I haven't tested it).  Neither of these thin polarizers has front threads. - Taylor R.

Hoya 58mm RM72 Infrared filter

No vignetting on a 49mm-58mm step-up ring. - Taylor R.

Hoya ND x8 (neutral density filter) - some vignetting (~same as the UV(0)) and a gree/yellow color cast - Marko B.

Hoya UV(0) - my old filter vignettes a little bit at 35 mm, but 28 mm is
clean Marko B.

Hoya PL-CIR (my old polarizing filter) - it vignettes BADLY up to 50 mm
Marko B.

Hoya Super Pro 1 UV(0) slim multi coated filter - there's only a tiny,
tiny bit of vignetting (BTW the coating is really superb!) - Marko B.

Hoya Super Pro 1 PL-CIR - vignettes a little bit (same as the old UV(0)
IMHO), BTW it has front threads and I can use the original lens cap with
it. Marko B.

Hoya ND x8 (neutral density filter) - some vignetting (~same as the
UV(0)) and a gree/yellow color cast - Marko B.


I also have sample pictures available at Pbase
http://www.pbase.com/mbjorkro/filters

Various filters -  Here are the filters I tried -- all vignette:

Hoya 49mm UV(0)
Hoya HMC 49mm UV(0)
Hoya HMC 49mm SKYLIGHT (B)
Hoya 49mm VIDEO CLEAR

Kenko 49mm UV

Tiffen 49mm ND 0.6 U.S.A.

CPC PHASE 2  49mm POLARIZING

Tamron 49mm P.L  - Jim H.

Kodak 49 to 52mm step up ring. vignettes slightly at wide angle.

Kodak 52mm circular pol. with step up ring, vignettes badly at wide angle to about 50mm.

Kalt 49mm-62mm step up ring. No visible vignetting. Even thick 62mm filters are OK. The step up ring and "Promaster" polarizing filter works. A rubber 62mm lens hood works with the step up ring, but the rubber hood has to be retracted at wide angle. -Bryan

Kalt 49-55mm step up ring. No vignetting. Thick filters do vignette when attached to the ring though. -Bryan

Optex 49mm UV Filter: Does not vignette at all - Andre

PRO QUALITY (This is the name) 49mm Circular Polarizer:Vignettes slighly from 28 to 50. - Andre

S/H Olympus UV filter for the D7 which works very well with no vignetting, it seems the Olympus filters have an especially thin holder, which is ideal for the Dimage 7.

Step up rings I had 49-55 step-up and then a 55-58 to attach a 58mm circular polarizer.  On the end I had a screw-in rubber lens hood. This combination causes wide-angle vignetting. I got a 49-58mm step-up and there was still some noticeable vignetting at wide-angle.  The Lens hood was the culprit even folded so I guess its the additonal lip.

Tiffen 49mm Haze-1 filter -- vignettes slightly from 38mm to 50mm. -Ralph B.

Rilex polarizer out of Japan. It is slightly thinner than a Hoya they had and one of my older 52mms. Kurt's Cameras (http://www.kurtscameracorral.com/) has new ones at $46 - I was fortunate enough to buy a used one from them for $10.  Rilex also makes very thin UV filters. The Rilex polorizer does vignette slightly, more so in the upper left corner than the right, and not at all in the lower corners.

Vivitar VMC 49m UV filter is thin enough.

Old Yashica lenses with 55mm threads (requires step up ring)
Yashikor Aux Telephoto 1:4 Y908 and Yashikor Aux Wide Angle 1:4 Y908

The wide angle is pointless to use on the 7Hi since there is no improvment over the cameras 28mm without some serious vignetting. With the telephoto the center is pretty much clear and focuses but the edges are quite blurry. Adding some filters between the camera and the lens as spacers improves the amount of sharpness towards the edges but not by much and you start getting some vignetting. With the spacers I also wonder how much actual telephoto "power" is added. Since they are so cheap (found the pair on the net for USD 30 including shipping and handling) I would recommend buying them but only if you like the "special effects" they produce. Otherwise don't bother. However, if by chance you own a Fuji 3800 (or suppose any similar model Fuji) then for USD 30 you get your moneys worth. I tested them on a FinePix3800 and they worked very well with no apparent vignetting or distortion with either the telphoto or the wide-angle lens. See samples at  http://www.pbase.com/dumont/yashica_lens_test   -Durmont