erlingmm Posted October 18, 2009 Share #1 Posted October 18, 2009 Advertisement (gone after registration) Just to show the perspective of the 18mm (Super-Elmar), compared to 75 (Summicron), below (Norwegian mountains, today) 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! 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/100625-18mm-on-the-m9/?do=findComment&comment=1080020'>More sharing options...
Advertisement Posted October 18, 2009 Posted October 18, 2009 Hi erlingmm, Take a look here 18mm on the M9. I'm sure you'll find what you were looking for!
sandymc Posted October 18, 2009 Share #2 Posted October 18, 2009 Interesting - you also seem to have the "red on the left" problem with the 18mm.... Sandy Link to post Share on other sites More sharing options...
brill64 Posted October 18, 2009 Share #3 Posted October 18, 2009 did you have a manual lens setting when using the coded18mm for that shot? i wonder if that's what caused the magenta edge?cold and crispy landscape you've captured! Link to post Share on other sites More sharing options...
erlingmm Posted October 18, 2009 Author Share #4 Posted October 18, 2009 Interesting - you also seem to have the "red on the left" problem with the 18mm.... Sandy You are right, I actually did not notice. Auto lens recognition, probably aperture 11-16. Link to post Share on other sites More sharing options...
Ario Arioldi Posted October 18, 2009 Share #5 Posted October 18, 2009 On my 18mm Zeiss the red shift is less evident if lens recognition is set to "off". Is it the same on the Super Elmar? Cheers, Ario Link to post Share on other sites More sharing options...
erlingmm Posted October 18, 2009 Author Share #6 Posted October 18, 2009 On my 18mm Zeiss the red shift is less evident if lens recognition is set to "off".Is it the same on the Super Elmar? Cheers, Ario I'll have to test that, but if that is the case, it should be possible to correct in firmware? Link to post Share on other sites More sharing options...
Ario Arioldi Posted October 18, 2009 Share #7 Posted October 18, 2009 Advertisement (gone after registration) Just to show what I mean, the first pic is with the 18mm Zeiss manually set to be recognized as WATE at 18mm, the second is with the same lens and the lens recognition set to off. Cheers, Ario 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! 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/100625-18mm-on-the-m9/?do=findComment&comment=1080084'>More sharing options...
sandymc Posted October 18, 2009 Share #8 Posted October 18, 2009 Less evident, but if you measure, the bias still there. Something very odd about how the M9 vignettes. But yes, Leica should be able to correct this in firmware, maybe not completely, but they can at least get rid of the red. Sandy Link to post Share on other sites More sharing options...
Ario Arioldi Posted October 18, 2009 Share #9 Posted October 18, 2009 Yes Sandy, in fact I said less evident in my previous post, but some drift is still there and in the full size pic is even more visible than in the jpg posted here. Cheers, Ario Link to post Share on other sites More sharing options...
marknorton Posted October 18, 2009 Share #10 Posted October 18, 2009 Another reason to go and live in Norway, in spite of their tax rates and the price of beer. Link to post Share on other sites More sharing options...
adan Posted October 18, 2009 Share #11 Posted October 18, 2009 Since Mark and Sandy have both showed up (relative experts on edge drift and image flow characteristics) - I wonder if the red/left issue has to do with the sensor being read out in 2 halves and the corrections somehow being applied differentially on each side for that reason? (separate A/D converters?) My 21 pre-asph shows some red/left or red/bottom (don't say it!) staining, so it seems pretty consistent across most wide lenses so far. Link to post Share on other sites More sharing options...
luigi bertolotti Posted October 18, 2009 Share #12 Posted October 18, 2009 I think they must fix it in firmware... it's so eveident that there is a problem specifically at left side only, that I think there is some bug in the firmware's code. Link to post Share on other sites More sharing options...
adan Posted October 18, 2009 Share #13 Posted October 18, 2009 Luigi: agree, and the good news is that if it is consistent as it appears, firmware fixes should be fairly easy (I hope). Personally, if there is going to be some edge drift, I'd prefer a touch of cyan over this red/magenta - but then I'm an old cyan-shadows Velvia user. Maybe Leica should subcontract the fix out to Sandy... Link to post Share on other sites More sharing options...
jonoslack Posted October 18, 2009 Share #14 Posted October 18, 2009 Luigi: agree, and the good news is that if it is consistent as it appears, firmware fixes should be fairly easy (I hope). Personally, if there is going to be some edge drift, I'd prefer a touch of cyan over this red/magenta - but then I'm an old cyan-shadows Velvia user.. Oh . .. give me magenta any day (I'm beginning to get fond of it) (I do agree with you though) Link to post Share on other sites More sharing options...
sfokevin Posted October 19, 2009 Share #15 Posted October 19, 2009 But yes, Leica should be able to correct this in firmware, maybe not completely, but they can at least get rid of the red. Sandy I hope they offer the same for us lowly M8er too Oh... Sandy?... I think I know the answer but with Cornerfix - If Leica comes out with a revised firmware one should shoot create new profiles correct?... Link to post Share on other sites More sharing options...
cheewai_m6 Posted October 19, 2009 Share #16 Posted October 19, 2009 on a different note, it still amazes me how little distortion leica lenses don't have even at 18mm. remarkable. shame about the red shift. Link to post Share on other sites More sharing options...
ho_co Posted October 19, 2009 Share #17 Posted October 19, 2009 I think it's the quick-setting glue Kodak uses. Dries on one side quicker than the other, creating stresses that raise one end of the cover-glass or microlens sheet higher than the other during the production process. If we all agree that we don't want the red at the left, Leica could ask Kodak to glue the pair onto the sensor across the short side instead of the long side. If nothing else, this would have the advantage of putting the red color at the bottom of the frame, where it's usually easier to mask. If we're lucky, because of the reduced time differential of laying the cover-glass/microlens sandwich across the shorter way, the reddening effect might be greatly reduced because the two sides would be drying at more nearly the same rate. Or Leica could just offer some special graduated cyan filters for wideangles when used on the M9. (And no, of course I'm not serious.) Link to post Share on other sites More sharing options...
Artichoke Posted October 19, 2009 Share #18 Posted October 19, 2009 You are right, I actually did not notice. Auto lens recognition, probably aperture 11-16. why did you use such a narrow aperture:confused: any lens that wide has gobs of DOF & no lens is at its best so stopped down, particularly ultrawides lovely place & sweet colors, though the red problem to the right detracts Link to post Share on other sites More sharing options...
ArtZ Posted October 19, 2009 Share #19 Posted October 19, 2009 A simple question for those guys and girls who have the M9 and the WATE: Does the magenta left edge happen also with the WATE at 16mm and 18mm? Or only with the Elmar 18/3.8 and the ZM 18/4? Link to post Share on other sites More sharing options...
UliWer Posted October 19, 2009 Share #20 Posted October 19, 2009 A simple question for those guys and girls who have the M9 and the WATE: Does the magenta left edge happen also with the WATE at 16mm and 18mm? Or only with the Elmar 18/3.8 and the ZM 18/4? An example with a WATE at 18mm and the red shift - on both edges! - can be seen here: http://www.l-camera-forum.com/leica-forum/forum-zur-leica-m8/98843-problem-mit-dem-super-elmar-18mm.html#post1040557 Link to post Share on other sites More sharing options...
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