lct Posted August 30, 2008 Share #41 Posted August 30, 2008 Advertisement (gone after registration) Good sharpness at f/2, no doubled lines in the background. Some OoF highlights get sharp edges but not too much. Sounds good at first glance. Quote Link to post Share on other sites More sharing options...
Advertisement Posted August 30, 2008 Posted August 30, 2008 Hi lct, Take a look here New CV Ultron 28mm f2 on M8?. I'm sure you'll find what you were looking for!
Shootist Posted August 30, 2008 Share #42 Posted August 30, 2008 Just to give you a bit more of a taste of the results from my CV28/2.0 Ultron here are three more. LouisB Lou are those image you posted crops or the full M8 frame. Quote Link to post Share on other sites More sharing options...
biglouis Posted August 30, 2008 Share #43 Posted August 30, 2008 Lou are those image you posted crops or the full M8 frame. The 'slots' and the sea shot are full frame (although they might be slightly levelled). The swans shot is a crop, approximately 75% of the full frame. Actually, I'm now less happy with the colouration of the swans and sea shot. But I hasten to add that is my post-processing not the original frame. Clearly, the sea shot is too blue. LouisB Quote Link to post Share on other sites More sharing options...
KC727 Posted August 30, 2008 Share #44 Posted August 30, 2008 Chris: Never got any glow with the 35/2 IV either.KC727: Sharp pics but no bokeh. Would be great at f/2 focussing at short distance if you can. Hi Ict Thanks for your recommendation. I took few random shots at f/2 with a close-up focus for sharing. (M8 + cv Ultron 28mm f2.0) 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/60211-new-cv-ultron-28mm-f2-on-m8/?do=findComment&comment=640167'>More sharing options...
lct Posted August 30, 2008 Share #45 Posted August 30, 2008 Great samples KC727, thank you much. I think this lens will be my next 28. Quote Link to post Share on other sites More sharing options...
biglouis Posted August 30, 2008 Share #46 Posted August 30, 2008 KC727 (do you, like have a name?) Great shots and powerful demonstration of the quality of this lens. I must try some similar shots of my own just to see whether the 'coronas' reported in my first shot a factor of the light and not a lens issue. Are you using a UV/IR filter and is the lens coded? I have now successfully coded my lens with the m-coder. LouisB Quote Link to post Share on other sites More sharing options...
thompsonkirk Posted August 30, 2008 Author Share #47 Posted August 30, 2008 Advertisement (gone after registration) KC727, Those shots are very reassuring, re: absence of 'coronas.' Kirk Quote Link to post Share on other sites More sharing options...
spylaw4 Posted August 30, 2008 Share #48 Posted August 30, 2008 KC727 (do you, like have a name?) Great shots and powerful demonstration of the quality of this lens. I must try some similar shots of my own just to see whether the 'coronas' reported in my first shot a factor of the light and not a lens issue. Are you using a UV/IR filter and is the lens coded? I have now successfully coded my lens with the m-coder. LouisB Coded as a ......?? Quote Link to post Share on other sites More sharing options...
biglouis Posted August 30, 2008 Share #49 Posted August 30, 2008 Coded as a ......?? Brian Summicron 28 f2 LouisB Quote Link to post Share on other sites More sharing options...
lct Posted August 30, 2008 Share #50 Posted August 30, 2008 ...Those shots are very reassuring, re: absence of 'coronas.'... Hope not. Sharpness + smooth bokeh + Leica err.. CV glow would make a unique lens IMHO. Any flare tests guys? Quote Link to post Share on other sites More sharing options...
thrid Posted August 30, 2008 Share #51 Posted August 30, 2008 This looks like a winner.... Quote Link to post Share on other sites More sharing options...
Shootist Posted August 30, 2008 Share #52 Posted August 30, 2008 Just order one from Steve Gandy. Quote Link to post Share on other sites More sharing options...
KC727 Posted August 31, 2008 Share #53 Posted August 31, 2008 KC727 (do you, like have a name?) Great shots and powerful demonstration of the quality of this lens. I must try some similar shots of my own just to see whether the 'coronas' reported in my first shot a factor of the light and not a lens issue. Are you using a UV/IR filter and is the lens coded? I have now successfully coded my lens with the m-coder. LouisB Hi LouisB Thanks for your response. You can call me K C. A Leica UV/IR filter was used for these shots but the lens has not been coded yet. At the moment, I'm considering whether to buy the m-coder. Anyway, I think it would not be any noticable difference if the focal length is not wider than 21mm. Again, thx K C Quote Link to post Share on other sites More sharing options...
KC727 Posted August 31, 2008 Share #54 Posted August 31, 2008 KC727, Those shots are very reassuring, re: absence of 'coronas.' Kirk Hi Kirk At a glance, both contrast and flare resistance of the lens are quite good at open aperture. For the thorough perfomance review , we need to wait for the expertise report. Anyway, this lens is a very good value for money. Thx K C Quote Link to post Share on other sites More sharing options...
thompsonkirk Posted August 31, 2008 Author Share #55 Posted August 31, 2008 "A Leica UV/IR filter was used for these shots but the lens has not been coded yet. At the moment, I'm considering whether to buy the m-coder. Anyway, I think it would not be any noticable difference if the focal length is not wider than 21mm." KC, I'm surprised! I'd expect to see visible cyan vignetting from any uncoded 28mm lens when working in color & using UV/IR. So I'm surprised that I don't see any cyan corners in your sample pictures, which I assume are uncropped. Kirk Quote Link to post Share on other sites More sharing options...
KC727 Posted August 31, 2008 Share #56 Posted August 31, 2008 "A Leica UV/IR filter was used for these shots but the lens has not been coded yet. At the moment, I'm considering whether to buy the m-coder. Anyway, I think it would not be any noticable difference if the focal length is not wider than 21mm." KC, I'm surprised! I'd expect to see visible cyan vignetting from any uncoded 28mm lens when working in color & using UV/IR. So I'm surprised that I don't see any cyan corners in your sample pictures, which I assume are uncropped. Kirk Hi Kirk I took a photo facing with a strong sunlight (with UV/IR filter) and found some unkown vignetting along metal edge. I don't know whether this problem was caused by uncoded or the lens qulaity itself?? Would anyone have this similar experience and know the reason, please let me know. K C:) 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/60211-new-cv-ultron-28mm-f2-on-m8/?do=findComment&comment=640626'>More sharing options...
lct Posted August 31, 2008 Share #57 Posted August 31, 2008 Colored fringing around highlights. Typical chromatic aberration. Quote Link to post Share on other sites More sharing options...
vanhulsenbeek Posted August 31, 2008 Share #58 Posted August 31, 2008 Colored fringing around highlights. Typical chromatic aberration. Two different things! Chromatic aberation is a result of a lens fault, usually absent from Leica ASPH lenses. Colored fringing is: 1. the result of chromatic aberation, usually purple, but can be green too. See Sean Reid's tests. Or: 2. the result of 'blooming' : bleeding of electrons from very strongely exposed pixels to nearby pixels in the dark. Blooming is usually a very distinct purple only. Quote Link to post Share on other sites More sharing options...
lct Posted August 31, 2008 Share #59 Posted August 31, 2008 Two different things! Chromatic aberation is a result of a lens fault, usually absent from Leica ASPH lenses... Did i say the contrary? Green and purple CA here IMHO. Quote Link to post Share on other sites More sharing options...
KC727 Posted August 31, 2008 Share #60 Posted August 31, 2008 Two different things! Chromatic aberation is a result of a lens fault, usually absent from Leica ASPH lenses. Colored fringing is: 1. the result of chromatic aberation, usually purple, but can be green too. See Sean Reid's tests. Or: 2. the result of 'blooming' : bleeding of electrons from very strongely exposed pixels to nearby pixels in the dark. Blooming is usually a very distinct purple only. Hi Vanhulsenbeek Could you tell me what is the problem in my photo??? Thx KC Quote Link to post Share on other sites More sharing options...
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