citizen.one Posted February 22, 2010 Author Share #21 Posted February 22, 2010 Advertisement (gone after registration) ive tryed almost every setting from 24 to 35 to jaap - this may be caused by the UV filter which was on that time... anyway today evening ill borrow old wetzlar 35 and we'll see. Tommorow will come my friend with another M9 and a lot of lenses, so i hope it will give a result... thx m Link to post Share on other sites More sharing options...
Advertisement Posted February 22, 2010 Posted February 22, 2010 Hi citizen.one, Take a look here Corner Issue on 35/2 Summicron. I'm sure you'll find what you were looking for!
luigi bertolotti Posted February 22, 2010 Share #22 Posted February 22, 2010 Make some "white wall evenly lighted" pics like the ones by Kirk... trivial, but the most revealing : seems so strange you have the same problem with TWO lenses of the same model... and even more strange it does not do on film... ... the vignetting you posted is so strong that something like should be noticeable on film too. Can you tell us the serial number(s) of the Cron(s) 35 you used ? Just to be sure is a V4... Link to post Share on other sites More sharing options...
citizen.one Posted February 22, 2010 Author Share #23 Posted February 22, 2010 well the second lens is by my father now, actually he bought M9 after i had M8.2, but decided to let me try M9 before him the number is 3307893 ive tryed the wall photos too, but deleted them and stopped comparing, it was on both of them. Im sure that noone had this problem with film camera, it might be problem only on M9 Link to post Share on other sites More sharing options...
mrphotog Posted February 22, 2010 Share #24 Posted February 22, 2010 Lloyd Chambers did a nice writeup on this problem that can be found at http://diglloyd.com/prem/prot/DAP/LeicaM9/lens-ZM21f4_5.html Apparently, the problem has to do with ray angles of the lenses. You have to pay for this review site this and I find it worth the price. Link to post Share on other sites More sharing options...
citizen.one Posted February 22, 2010 Author Share #25 Posted February 22, 2010 well, ive just tryed the older one summicron, sn 2394394 and its the same...getting afraid i have some bad piece Link to post Share on other sites More sharing options...
luigi bertolotti Posted February 22, 2010 Share #26 Posted February 22, 2010 Summarizing... : - TWO Summicrons 35, of different design and age : 2394394 (fine number) is a version 2 - six elements, 3307893 is a version 4 - seven elements - BOTH give serious vignetting onto M9 - But the THE SAME M9 does not vignette with shorter (28) and longer (50) focals, with the camera (I suppose) set to the corresponding focals. - Setting different focals on M9 does not change the behavior of the 35s. - Would it be a "hardware" problem on sensor----> should be visible with other focals, expecially shorter ones. - Would it be a seriously bugged firmware on 35 setting-----> problem should disappear or at least look different with other settings like 28 or 50. - Both 35s with "hardware" problems like glass misalignement ? Incredible it's the same on two so different items... unless they both have been mis-treated the same way... say, regularly thrown rudely into a hard case... both often carried on strong-vibrating veichles, or so... One of the strangest problem-reporting thread I remember... curios to see how the plot goes on... Link to post Share on other sites More sharing options...
SJP Posted February 22, 2010 Share #27 Posted February 22, 2010 Advertisement (gone after registration) Ah...... Luigi's reply gave me some inspiration. I see two options to explain this: 1 Is there a problem with the firmware? Maybe one of the vignetting correction tables (for 35 mm lenses.... ) is messed up. If so then you might solve the problem by reinstalling the current firmware. I am not sure that is available online, check Leica.com for that. 2 Alternative is that the frameline selector or IR sensor does not send the correct info to the processor, does the picture EXIF data show the correct focal length? I recall a picture of the 6 bit IR LED array with one of the LED failed, that could be another reason., but of course not if you are selecting a non-coded lens. In that case the frameline info may be wrong causing a malfunction of the correction software. Anyway I am surprised you haven't got Leica involved with this. Something has obviously fouled up. Link to post Share on other sites More sharing options...
Guest trond Posted February 22, 2010 Share #28 Posted February 22, 2010 I have seen a similar problem with my 35mm Lux. My M9 has 2000 images on the counter. Of these 2000 images, 44 are listed in LightRoom as "unknown lens". When the unknown lens problem happens, it has always been with the 35mm Lux. I don´t know why it is always with the 35 lux, and it also happens when the lens detection is set to manual and 35 lux. The resulting image shows severe vignetting when this problem happens. Can it be that in the case of the poster, the 35mm lens correction for some reason always is off? Best regards Trond Link to post Share on other sites More sharing options...
Revdockj Posted February 22, 2010 Share #29 Posted February 22, 2010 Question: Is at least "some" light fall off "normal" wide open on lenses 35mm and wider? Ken Link to post Share on other sites More sharing options...
luigi bertolotti Posted February 22, 2010 Share #30 Posted February 22, 2010 Uhm... the above posts made me reflect on the fact that (having not yet a M9....) I DO NOT KNOW if M9 requires BOTH lens setting (manual or auto) AND correspondent frame to apply correction (like in M8)... I thought (but, repeat, "thought", and can be wrong) that the manual setting "commandes all" : if indeed there is also the frame that plays a role, things could be really be that the "35mm firmware" is messed-up / faulty : - Set 35 manually, frame is 35----->problem - Set another focal manually, frame is 35 -------> faulty 35 correction applied, problem This would mean that frame "commandes" firmware... Acid test... : - mount the 35, set another frame manually, another focal in menu (let's say... 28/28)---->see what happens... Link to post Share on other sites More sharing options...
SJP Posted February 22, 2010 Share #31 Posted February 22, 2010 empirical science:D Link to post Share on other sites More sharing options...
luigi bertolotti Posted February 22, 2010 Share #32 Posted February 22, 2010 Question: Is at least "some" light fall off "normal" wide open on lenses 35mm and wider? Ken Yes, normal... but not so strong as posted in the linked pics, expecially with a rather "modern" lens like the Summicron 35 IV.... I would be curios to test my Super Angulon 21 f4 onto a M9... it has a significant light falloff at edges with M8... on M9, I'd expect a robust darkness in the corners (it is significant on film too). Link to post Share on other sites More sharing options...
jaapv Posted February 22, 2010 Share #33 Posted February 22, 2010 So I decided on a torture test. I put onto the M9 my Summaron 3.5cm/3.5 goggles. It is uncoded and brings up the 50 mm framelines. I set it manually to 35/f2 11310/11311. I made an available light shot ( sorry not very artisitic...) Result: No severe vignetting @ 3.5. About 1 - 1.5 stop falloff, less than would expect of this lens. So I think basically the firmware does an excellent job and the OP's problem is specific to his lenses and/or firmware. 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/113292-corner-issue-on-352-summicron/?do=findComment&comment=1235455'>More sharing options...
arnold kaufman Posted February 23, 2010 Share #34 Posted February 23, 2010 Hi Arnold here: I just tried my 35mm f/2 fourth version lens. Set for manual recognition ( not a coded lens) no uv filter or lens hood my f stop vary from f 2.8 to f 8.I do not see any corner issues. These photos are right out of the camera no adjustments, jpg images. I dont have any smart suggestions, sorry you are having problems. arnold 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/113292-corner-issue-on-352-summicron/?do=findComment&comment=1235554'>More sharing options...
ho_co Posted February 23, 2010 Share #35 Posted February 23, 2010 c.o, have you tried without filter and without hood as suggested previously? What happens if you mount a 50 but leave the lens ID manually set to the same 35 you're setting to now? If it's the firmware acting up, it would cause the same vignetting. Link to post Share on other sites More sharing options...
mrphotog Posted February 23, 2010 Share #36 Posted February 23, 2010 I found some public pages on diglloyd.com related to this topic. diglloyd Articles Check out topic 4. Ray Angle and Off-center Color Shift And for the record, I don't get anything from Lloyd. I paid my money like others and respect what he writes. Link to post Share on other sites More sharing options...
citizen.one Posted February 23, 2010 Author Share #37 Posted February 23, 2010 well, in summary 3 lenses do the same, 2 of same type - the Canada made ane even an older Wetzlar. My friend who have another M9 will come on Friday, so we'll see then, but he says he had no such a problem, only a bit vignetting on some Voightlander, but its 15 lens.... Anyway we're in touch with company which sold it to us and in a few weeks will come another M9, so we'd have a chance to trade it 1:1. On the third photo, try to make it darker, i think i see a bit darker space on the blue background, it shouldnt do this anyway - but perhaps im paranioc now Link to post Share on other sites More sharing options...
ho_co Posted February 23, 2010 Share #38 Posted February 23, 2010 ... - but perhaps im paranioc now It's easy to get that way checking these things out! I hope you get a clear answer with your friend's M9. Link to post Share on other sites More sharing options...
eritho Posted February 23, 2010 Share #39 Posted February 23, 2010 I have an old Cron 35/2 serial # 2462xxx, Canada made,(don't know if it's a six or seven elements) and just tried it out on my M9. I do get the same vignetting as on your picture. Doesn't matter whatever lens I choose in the menu! Doesn't matter if hood on or off! No filters used! No vignetting to be seen when used on M6 or M7. Link to post Share on other sites More sharing options...
chris_tribble Posted February 23, 2010 Share #40 Posted February 23, 2010 I don't think it's the M9 at fault - or the lens in general terms. My only 35 is a Mk IV cron and I love it. Looking back on recent weeks I've not got many fully open shots, but here's an example (n.b. a nothing, incidental photo) where problems would have shown. NO correction applied for vignetting. Processed in LR 2.6.1 There's a tiny amount of vignetting - easy to fix, and I've never felt it was an issue on this lens. To give an idea of how good performance is at f 5.6 I attach another image. 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/113292-corner-issue-on-352-summicron/?do=findComment&comment=1236001'>More sharing options...
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