wstotler Posted February 5, 2007 Share #1 Posted February 5, 2007 Advertisement (gone after registration) I've been going back-and-forth with Carsten about the 15mm Voightlander lens he suggested I try out to get wiiiiiiiides. I purchased the lens and the M-Bayonet Ring for 35mm and 135mm Screw-Mount-Lenses, which was the adaptor ring B&H noted would let the 15mm be used on an M Leica. (This may not be the right thing, but because the 15mm is so wide I figured the whole *viewfinder* and then some becomes my "framelines.") Carsten said there will likely be some vignetting and/or drift/shift in color. I'm not terribly worried about color drift/shift, but the vignetting is something I'd like to minimize if that's possible. And, the lens might just be *fine* out of the box for my purposes, vignetting and/or color shift/drift may not be so noticable as to bug me. (If it were a $3K Leica lens--or the $3K Zeiss 21mm they're talking about--it *would* bug me, BTW.) I'm only going to really be using this lens in special situations when my 35mm Summicron-M (approx. 50mm equiv on M8) doesn't cut it for wiiiiideness, So I thought, well, *could I* code the lens adaptor ring to trigger the M8's lens auto detection so I can get some software goodness applied to the 15mm's images? I've seen a DIY procedure in the forums for coding, after all. And I've seen code lists. But, I couldn't figure out which code would best match the 15mm. None of the reviews I read (Luminous Landscape, for example) or posts I found mentioned coding. Carsten wasn't sure either and wanted to know--then suggested I post it--so I'm posting. If I were going to do the do-it-yourself coding of the adaptor ring to get benefits from the in-camera processor, which "code" would I pick from the lists I've seen posted around the forums as an appropriate equivalent? Does anyone know? Or have a good, educated guess? Or, will it really not make a lick of difference if it's coded or uncoded? Thanks! Will Link to post Share on other sites More sharing options...
Advertisement Posted February 5, 2007 Posted February 5, 2007 Hi wstotler, Take a look here Voightlander 15mm Heliar w/adaptor - Which M8 lens code?. I'm sure you'll find what you were looking for!
grober Posted February 5, 2007 Share #2 Posted February 5, 2007 The very best investment you can make at this point is to subscribe to Reid Reviews. He's about to publish a review on this very lens and surely will extensively handle the point of concern that you mention. -g Link to post Share on other sites More sharing options...
wstotler Posted February 5, 2007 Author Share #3 Posted February 5, 2007 The very best investment you can make at this point is to subscribe to Reid Reviews. He's about to publish a review on this very lens and surely will extensively handle the point of concern that you mention. -g Thanks for the tip. Done. Thanks, Will. Link to post Share on other sites More sharing options...
sean_reid Posted February 5, 2007 Share #4 Posted February 5, 2007 Thanks grober. That's good to hear. With any luck, that review will be ready towards the end of February. The WA TE should be here by the 11th and I still need to finish up the 21 tests and start with the 50s. Will, your best bet would probably be to use the CV 15 with a Leitz 9 cm (90 mm) adapter. The camera will then treat it as a 21/28/90. Then you can hand code the adapter as a 21/2.8 Elmarit Aspherical and that should reduce vignetting. WA TE owners...what frame lines does it trigger? Cheers, Sean Link to post Share on other sites More sharing options...
stunsworth Posted February 5, 2007 Share #5 Posted February 5, 2007 Will, any adaptor will do as the lens is way wider than any of the framelines. In fact it's much wider than the entire viewfinder, so you'll need an external viewfinder. I use the 21mm viewfinder from my Voigtlander 21mm lens. Vignetting isn't as bad as I was expecting. It tends to show up most on clear skies where there is pretty obvious vignetting in the corners. Link to post Share on other sites More sharing options...
Guest magyarman Posted February 5, 2007 Share #6 Posted February 5, 2007 T Will, your best bet would probably be to use the CV 15 with a Leitz 9 cm (90 mm) adapter. The camera will then treat it as a 21/28/90. Then you can hand code the adapter as a 21/2.8 Elmarit Aspherical and that should reduce vignetting. WA TE owners...what frame lines does it trigger? This mabe works mabe not. I now is 12mm vignettes lesser on RD1 then 15mm, oba on M8 is reversal! Best I thing see how is 15mm cyan compares to some other lenses than chose adaption rink who find same frame line so when to put peint codings will respect this lens to bran of M8. Link to post Share on other sites More sharing options...
rvaubel Posted February 5, 2007 Share #7 Posted February 5, 2007 Advertisement (gone after registration) Will, your best bet would probably be to use the CV 15 with a Leitz 9 cm (90 mm) adapter. The camera will then treat it as a 21/28/90. Then you can hand code the adapter as a 21/2.8 Elmarit Aspherical and that should reduce vignetting. Cheers, Sean Sean I finally got my M8 Now I need an old Leitz adapter that has the "full circle" so I can self code. I also need it so I can engineer an adapter for the VC units. Any heip? Rex Link to post Share on other sites More sharing options...
cme4brain Posted February 5, 2007 Share #8 Posted February 5, 2007 Sean I finally got my M8 Now I need an old Leitz adapter that has the "full circle" so I can self code. I also need it so I can engineer an adapter for the VC units. Any heip? Rex Hello Rex. I have the non-circular Voigtlander adapter rings as well. You will have to scour ebay and other camera stores for the old adapters. You can however use the current ones and use gaffer's tape to fill in the area. Go to this older thread ( http://www.leica-camera-user.com/digital-forum/10494-proof-concept-regarding-self-coding-lenses-13.html ), page down to the bottom of page 13 for a picture of just that. The tolerances are so tight that you have to re-try this, I would think. -Lloyd Link to post Share on other sites More sharing options...
rvaubel Posted February 5, 2007 Share #9 Posted February 5, 2007 Hello Rex. I have the non-circular Voigtlander adapter rings as well. You will have to scour ebay and other camera stores for the old adapters. You can however use the current ones and use gaffer's tape to fill in the area. Go to this older thread ( http://www.leica-camera-user.com/digital-forum/10494-proof-concept-regarding-self-coding-lenses-13.html ), page down to the bottom of page 13 for a picture of just that. The tolerances are so tight that you have to re-try this, I would think. -Lloyd Thanks for the tip Someone machined a circular ring that fit on the VC adapter for a permanent fix. I was the thinking of doing the same but, in addition milling some ovals for coloring in the required coding. Thats why I want the old adapter as more of a model as anything. Rex Link to post Share on other sites More sharing options...
carstenw Posted February 5, 2007 Share #10 Posted February 5, 2007 Sean, I have read in another thread here on LCU that the WATE brings up the 28-90 lines. Perhaps someone can confirm. I also have a CV15 with a 24/35/135 Leitz adapter. Link to post Share on other sites More sharing options...
jlm Posted February 6, 2007 Share #11 Posted February 6, 2007 look here http://www.leica-camera-user.com/digital-forum/14123-ir-cut-filter-15-voigtlander-4.html?highlight=2.004%22 that was the fix for the voightlander adapter which has the cutaway and adding the recesses. sean should have something to comment upon tomorrow Link to post Share on other sites More sharing options...
sean_reid Posted February 6, 2007 Share #12 Posted February 6, 2007 This mabe works mabe not. I now is 12mm vignettes lesser on RD1 then 15mm, oba on M8 is reversal! Best I thing see how is 15mm cyan compares to some other lenses than chose adaption rink who find same frame line so when to put peint codings will respect this lens to bran of M8. There's no "maybe" to it. I've been testing this combination already. Link to post Share on other sites More sharing options...
robsteve Posted February 9, 2007 Share #13 Posted February 9, 2007 Anybody decide what the best code for the 15mm VC is. I just got a 90mm Leitz adapter and I am trying some codes. Link to post Share on other sites More sharing options...
sean_reid Posted February 9, 2007 Share #14 Posted February 9, 2007 Anybody decide what the best code for the 15mm VC is. I just got a 90mm Leitz adapter and I am trying some codes. Hi Rob, As I posted above, try the 21/2.8 Asph code. Cheers, Sean Link to post Share on other sites More sharing options...
robsteve Posted February 9, 2007 Share #15 Posted February 9, 2007 Hi Rob, As I posted above, try the 21/2.8 Asph code. Cheers, Sean What happens with the WATE code? It would be nice to see 16mm in the exif to distinguish the 15mm from proper 21mms. Robert Link to post Share on other sites More sharing options...
bill vann Posted February 9, 2007 Share #16 Posted February 9, 2007 i tried to code a CV 21 with a 35/135 round adapter. it pulls up the wrong exif based on the right code but wrong focal length mount combination. haven't tried a 9cm yet that we seem to know will let you code the 21mm. will be playing with sharpies this weekend. bill Link to post Share on other sites More sharing options...
sean_reid Posted February 9, 2007 Share #17 Posted February 9, 2007 Hi Bill, The easiest way to go is to use a 9 cm adapter. Otherwise, you'd have to hold the frame line selector in the 28/90 position. Rob, You could try the WA TE code. I don't have a WA TE here yet and don't know what the code is. Maybe Carsten has it? Cheers, Sean Link to post Share on other sites More sharing options...
carstenw Posted February 9, 2007 Share #18 Posted February 9, 2007 The WATE code is in the table. Unfortunately, the 28/90 adapters are a bit hard to find. Link to post Share on other sites More sharing options...
Guest guy_mancuso Posted February 9, 2007 Share #19 Posted February 9, 2007 I have a 28-90 so use the WATE code . i need to try this and I was not very lucky with my 35mm lux so i sent it out for coding awhile back. Great just noticed it one black mark I should be able to hit that Link to post Share on other sites More sharing options...
jlm Posted February 10, 2007 Share #20 Posted February 10, 2007 maybe I'm misunderstanding various comments. but I'm not convinced the frame selector lever postion, and correspondingly, the frame coding bump on the adapter, has anything to do with the exif data. I have my 15 Heliar coded for a 21 and it shows 21 in the exif data, in each postion of the frame selector lever. Link to post Share on other sites More sharing options...
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