TomB_tx Posted May 15, 2016 Share #21 Posted May 15, 2016 Advertisement (gone after registration) As you noted,the edge correction is less effective as the ISO increases on the M9. I generally use mine at 160, unless the light is way dim, when I may use 400 to use 1/15 sec at least. I almost never notice the coloration, unless I shoot a blank wall and look for it. Seems like an eBen split between those who find the edge color objectionable, and those who don't. Could be sample variation, ISO, subject matter, or just discriminating color sense. 1 Quote Link to post Share on other sites More sharing options...
Advertisement Posted May 15, 2016 Posted May 15, 2016 Hi TomB_tx, Take a look here Voigtlander 21mm f4 - so impressed. I'm sure you'll find what you were looking for!
lct Posted May 15, 2016 Share #22 Posted May 15, 2016 If it is not too late i would trade your LTM copy for an M copy. Not sure if t will do much better on the M9 though but the M works fine on both my M240 and Sony A7s mod. Quote Link to post Share on other sites More sharing options...
LucisPictor Posted May 15, 2016 Share #23 Posted May 15, 2016 (edited) As with most Voigtländer M-lenses, they are amazing on an M8 and and on a film M (such as ma M6), but some users find them a little restricting on digital fullframe cameras. Well... I can live with that. Edited May 15, 2016 by LucisPictor 1 Quote Link to post Share on other sites More sharing options...
kenf Posted May 15, 2016 Share #24 Posted May 15, 2016 I've heard a lot of conflicting information about that - some people with FF digital bodies say it's terrible, and others report that it's fine. I'm not sure if there's sample variation or what. I'd very much like to get a 21 for my M-P, but I don't think it will be used much so the C-V makes financial sense - if it will give me technically reasonable results. Quote Link to post Share on other sites More sharing options...
ECohen Posted May 15, 2016 Share #25 Posted May 15, 2016 I've heard a lot of conflicting information about that - some people with FF digital bodies say it's terrible, and others report that it's fine. I'm not sure if there's sample variation or what. I'd very much like to get a 21 for my M-P, but I don't think it will be used much so the C-V makes financial sense - if it will give me technically reasonable results. me too I went for the CV21/4 it is more than fine...a lot more....and its the perfect size Quote Link to post Share on other sites More sharing options...
Abram Posted May 16, 2016 Share #26 Posted May 16, 2016 I have one as well for the second time. Admittedly my first one a year ago was really not that great, both the left and right sides were never even remotely sharp at any aperture (I'm not even expecting perfection, I mean it was unusable and had to be cropped out usually.) This new one I bought used a week ago is almost spot on. The center and right side of the frame are great but the left edge is a little off, not as bad as my old one, but it's noticeable in comparison to the center and right edge. However that is how it performs on my M240, I shot a roll with my M-A and this lens today so I'll develop it and see how it looks on film, I expect it'll probably be just fine Quote Link to post Share on other sites More sharing options...
colonel Posted May 16, 2016 Author Share #27 Posted May 16, 2016 Advertisement (gone after registration) I think Voigtlander has come on a lot in the last few years. Their quality control and research and design is very good now I have recently tried the 35mm f1.2 ii VM, 50mm f1.5 VM and now the 21mm f4 VM. They are all very impressive lenses and good enough to be the base ones in an RF M mount collection. I hear the 24mm f4 VM and 35mm f1.7 VM are excellent and look toward to trying them. Voigtlander lenses mostly have a distinct signature in my eyes. A warm yellowish sharpness and a slightly flat contrast signature which looks stunning with people shots particularly in difficult lighting conditions. This is compared to the super sharp glassy flat field slightly warm contrasty signature of Zeiss and the super centre sharp neutral blueish high micro contrasty of the latest Leicas 1 Quote Link to post Share on other sites More sharing options...
Musotographer Posted May 17, 2016 Share #28 Posted May 17, 2016 (edited) Thanks for all the comments. I've decided to keep the lens as it's so small and such a bargain (near-mint, £349 inc. finder!) and the drawbacks are manageable. Shooting at the lowest practical ISO clearly helps greatly, and I've worked out a couple of LR presets which seem to get rid of the pink peril with one click: graduated filter with the temp and tint sliders. I've no idea if this is a recognised method, but it seems to work. The LR lens profile seems to be no use at all. Apart from the pink problem this seems to me to be a marvellous little lens - and far more likely to get taken out and about than the much bigger Leica 21s. I bought this lens today, pre-loved as they say, with the CV 21 finder, at a good price. The dealer also had a coded Elmarit 21pre-Asph, with a Leica finder, but this seemed as good at nearly £1000 less, and the size is just so handy. It seemed fine at the dealer's (files viewed on their monitor) and I happily trotted off to spend the afternoon trying it out. Very disappointing when I got home - splendid IQ, but the dreaded magenta stripe was down the LH edge of most of the shots, also, but to a much lesser degree, on the bottom edge. I'm using an M9P, set to the 11134 lens coding, and aperture was mainly 5.6 or 8. My copy is a LTM with an adapter. ISO was mainly at 400 or 640 - could this contribute to the problem? I have since tried a couple of test shots at ISO 160, and the problem seems rather less. I don't actually find it too difficult to correct in LR (without faffing around with CornerFix) - but I'd rather not have to at all, and I'm thinking of taking the lens back, though I don't want to spend the considerably greater sum for the Elmarit. Any thoughts from anyone please? Christopher Edited May 17, 2016 by Musotographer Quote Link to post Share on other sites More sharing options...
Ecar Posted May 17, 2016 Share #29 Posted May 17, 2016 (edited) Musotographer, on 17 May 2016 - 16:21, said: Thanks for all the comments. I've decided to keep the lens as it's so small and such a bargain (near-mint, £349 inc. finder!) and the drawbacks are manageable. Shooting at the lowest practical ISO clearly helps greatly, and I've worked out a couple of LR presets which seem to get rid of the pink peril with one click: graduated filter with the temp and tint sliders. I've no idea if this is a recognised method, but it seems to work. The LR lens profile seems to be no use at all. Apart from the pink problem this seems to me to be a marvellous little lens - and far more likely to get taken out and about than the much bigger Leica 21s. For more repeatable and likely more accurate results, try downloading the FlatField plugin from Adobe Labs. All it needs is taking a reference image (or more, if you are picky and want to do one for each aperture/ISO combination) by shooting a clear sky or a white/grey wall with a tissue in front of the lens. Then use the one-click auto color correction only (I find the vignetting one too strong). Only downside is that the process generates an additional TIFF file. Or you could use CornerFix, which is somewhat better but also more cumbersome IMO. Edited May 17, 2016 by Ecar 2 Quote Link to post Share on other sites More sharing options...
Marac Posted May 18, 2016 Share #30 Posted May 18, 2016 I have had the 21/4 and it was very good with my M8 at the time and it was also good with the M9M. I sold it before getting an M9 but I also have a Voigtlander 15mm asph III that is amazing. The price obviously reflects the difference in IQ but the little Voigts pack a real big punch for the money and the luxury of weighing next to nothing is a relief for an old fart like myself 1 Quote Link to post Share on other sites More sharing options...
rpittal Posted May 19, 2016 Share #31 Posted May 19, 2016 I just received my copy of the CV 21mm f/4 today and am very pleased with its performance during some simple test shots in the backyard. I also wanted to see about the purple fringing on my MP240, so I took a series of pics of the overhead sky under different conditions. The following four pics are all at ISO200, 1/750 sec and f/11 (I did all f stops and selected the same for each condition). I also had the camera on auto while balance so the color temps varied. When I realized this differences, the sky opened up so was not able to repeat. I increased the contrast a bit in post (the same for all). The four conditions shown are: - no filter and no corrections (6350K) with obvious magenta fringe - no filter with 11134 in-camera corrections (5800K) with much reduced magenta fringe, but still there My newly ordered B+W UV filter did not arrive yet, so I used an older UV IR cutoff filter. I repeated the above two "tests" with that filter: - B+W 486 UV IR cut MRC filter and no corrections (5050K). Less magenta fringe (my be due to colder color temp) - B+W 486 UV IR cut MRC filter with in-camera 11134 corrections (5700K). Quite clean on edges. The IR cut obviously is reducing the magenta fringing and may be an option if bothersome (even with using the in-camera correction). Welcome, dear visitor! As registered member you'd see an image here… Simply register for free here – We are always happy to welcome new members! Bob 1 Quote Link to post Share on other sites Simply register for free here – We are always happy to welcome new members! Bob ' data-webShareUrl='https://www.l-camera-forum.com/topic/258185-voigtlander-21mm-f4-so-impressed/?do=findComment&comment=3047333'>More sharing options...
Musotographer Posted May 19, 2016 Share #32 Posted May 19, 2016 For more repeatable and likely more accurate results, try downloading the FlatField plugin from Adobe Labs. All it needs is taking a reference image (or more, if you are picky and want to do one for each aperture/ISO combination) by shooting a clear sky or a white/grey wall with a tissue in front of the lens. Then use the one-click auto color correction only (I find the vignetting one too strong). Only downside is that the process generates an additional TIFF file. Or you could use CornerFix, which is somewhat better but also more cumbersome IMO. Thanks Ecar - I'll investigate this when I have some time. Quote Link to post Share on other sites More sharing options...
Musotographer Posted May 19, 2016 Share #33 Posted May 19, 2016 I just received my copy of the CV 21mm f/4 today and am very pleased with its performance during some simple test shots in the backyard. I also wanted to see about the purple fringing on my MP240, so I took a series of pics of the overhead sky under different conditions. The following four pics are all at ISO200, 1/750 sec and f/11 (I did all f stops and selected the same for each condition). I also had the camera on auto while balance so the color temps varied. When I realized this differences, the sky opened up so was not able to repeat. I increased the contrast a bit in post (the same for all). The four conditions shown are: - no filter and no corrections (6350K) with obvious magenta fringe - no filter with 11134 in-camera corrections (5800K) with much reduced magenta fringe, but still there Thanks for this, very interesting. It's striking that on the M9's sensor the problem is mainly on the LH frame edge and somewhat on the bottom, but on your M240's it is very strongly on the RH edge too but not on the bottom. Christopher Quote Link to post Share on other sites More sharing options...
ECohen Posted May 19, 2016 Share #34 Posted May 19, 2016 I think I might be missing something....attaching filters? My copy of the CV21mm f/4 has a lens hood that appears to be permanently attached. I cant get my fingers in to attach the filters....there are screw threads . Does this hood come off? Quote Link to post Share on other sites More sharing options...
Musotographer Posted May 19, 2016 Share #35 Posted May 19, 2016 It's very easy to unscrew as long as you put the lens cap on first! Very unintuitive, but it works - took me a while to realise. Quote Link to post Share on other sites More sharing options...
lct Posted May 19, 2016 Share #36 Posted May 19, 2016 If you have the M version of the lens (no experience with LTM) the hood can be unscrewed from it and the lens has an internal thread for filters. Been using Leica UV/IR filters that way with no problem whatsoever. Quote Link to post Share on other sites More sharing options...
ECohen Posted May 19, 2016 Share #37 Posted May 19, 2016 If you have the M version of the lens (no experience with LTM) the hood can be unscrewed from it and the lens has an internal thread for filters. Been using Leica UV/IR filters that way with no problem whatsoever. I didn't know I had a choice.....I should have to ask you guys before buying. It's very easy to unscrew as long as you put the lens cap on first! Very unintuitive, but it works - took me a while to realise. Thanks! Also: Converting CV lens to a Coded M Lens MountCan someone please send me a link to buy M lens mount so that I can code a Voigtlander 21mm f/4. I'm using a 240MP Or I'm wondering.... can I just use a paper template that I saw on BoPhoto.com and mark the mount that the lens came with ? Not sure how to do this but from what I've read its worth a try. All help welcome....Thanks Quote Link to post Share on other sites More sharing options...
lct Posted May 19, 2016 Share #38 Posted May 19, 2016 (edited) Do you have an LTM or M version? Edited May 19, 2016 by lct Quote Link to post Share on other sites More sharing options...
ECohen Posted May 19, 2016 Share #39 Posted May 19, 2016 Do you have an LTM or M version? I thought it was for the M ....? Is it marked on the lens? How do I tell?....the lens hood is permanently attached. Quote Link to post Share on other sites More sharing options...
lct Posted May 19, 2016 Share #40 Posted May 19, 2016 Doe your lens look like this? Welcome, dear visitor! As registered member you'd see an image here… Simply register for free here – We are always happy to welcome new members! Quote Link to post Share on other sites Simply register for free here – We are always happy to welcome new members! ' data-webShareUrl='https://www.l-camera-forum.com/topic/258185-voigtlander-21mm-f4-so-impressed/?do=findComment&comment=3047493'>More sharing options...
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