petercs Posted May 6, 2008 Share #1 Posted May 6, 2008 Advertisement (gone after registration) Hi, is anyone using the new Elmarit 28 on film (say: uncropped format) ? I have been out on ski touring with M7 / Summarit 50 / Elamrit 28. Though I am bad at remembering what lens I have used at what shot and at what setting, I believe I had several strongly vignetting shots with the Elmarit while the Summarit did not vignette at all. I used a B&W UV Filter and the Leica sun shade on both lenses at all time. Given the amount of light, the lenses were stopped down most times. Shots taken on Provia100F and Velvia50 (both very fine contrary to Sensia100 and Velvia100 that I used as well). I believe that was an Elmarit shot: Skitouren im Vinschgau - M7 Testbilder This is already slightly corrected, the original vignettes even more. When scanning I can remove vignetting, but projecting the original slide shows heavy falloff in the corners. Falloff even is slightly uneven, more so on the upper left than inth opposite corners. Any similar experiences ? May filter or sun shade be the reason ? I am doing some controlled test shots meanwhile, removing sun shade, filter, ... If the results still show that vignetting, that makes the otherwise superb lens unusable for my use case. I extremely often shot in very bright light since I intend to use my Leica for mountaineering mainly. Best Regards, Peter. PS: How is Elmarit 24/2.8 or Summicron 28/2 behaving with regard to vignetting / film use / sun shade in place (stopped down, I don't mind if they vignette below f/4.0) ? Link to post Share on other sites More sharing options...
Advertisement Posted May 6, 2008 Posted May 6, 2008 Hi petercs, Take a look here Elmarit 28/2.8 ASPH Vignetting ?. I'm sure you'll find what you were looking for!
eckart Posted May 6, 2008 Share #2 Posted May 6, 2008 Hi, I can't believe, that you took that picture in the snow with a M7 by a 2,8 or a 4. Therefore I don't think that can be a so called natural vignetting. Maybe the reason is to find in the depth of the filter or you used a wrong shade. Cheers, Eckart Link to post Share on other sites More sharing options...
petercs Posted May 6, 2008 Author Share #3 Posted May 6, 2008 Hi,I can't believe, that you took that picture in the snow with a M7 by a 2,8 or a 4. Therefore I don't think that can be a so called natural vignetting. Maybe the reason is to find in the depth of the filter or you used a wrong shade. Cheers, Eckart I certainly stopped down a lot more, otherwise it would have been overexposed a lot. Shade used is the original one that comes with the lens. Filter is a slim B&W. BTW, I have found out Leica well documents the vignetting of their lenses in their data sheets. Sometimes one should read data sheets. The Elmarit in fact has significant corner falloff even at f/8. Not as important for M8 users, since they can use the sweet spot of the lens. But on film it matters. I will see what my test shots show. Probably I will quite often have to stop down the lens to f/16. Or set it aside for an upcoming (cropped) "Digital CL" with a stronger battery than the M8 ;-) Peter PS: I will also look if there is a center toned grey filter in E39 available. Have seen things like that to correct some superwide lenses. Link to post Share on other sites More sharing options...
kodaktrix Posted May 7, 2008 Share #4 Posted May 7, 2008 Strange thing for me is, that the vignetting is not centered, but is wider on the right side than on the left. I would first check if the shade sits even or is somehow tilt or maybe knocked. If that is ok, it could be a speed difference of the shutter curtains, while accelerating and braking, which might be more visible in such contrasty situation than under normal conditions. The shutter of the M7 is still mechanical altough electronicaly triggered, very little chance to adjust that, I would tolerate and live with it. Regards Oliver Link to post Share on other sites More sharing options...
petercs Posted May 7, 2008 Author Share #5 Posted May 7, 2008 Strange thing for me is, that the vignetting is not centered, but is wider on the right side than on the left.I would first check if the shade sits even or is somehow tilt or maybe knocked. If that is ok, it could be a speed difference of the shutter curtains, while accelerating and braking, which might be more visible in such contrasty situation than under normal conditions. The shutter of the M7 is still mechanical altough electronicaly triggered, very little chance to adjust that, I would tolerate and live with it. Regards Oliver Oliver, good point re. the shutter. Maybe I used the M7's 1/125 sec (pure mechanical) ? I mostly use the M7 in manual mode up to now. Also have seen some kind of 'banding' on some pictures on the left and the right of the (horizontal) pics. This could be in line with what you're saying. I will check this next time. Best Regards, Peter Link to post Share on other sites More sharing options...
rob_x2004 Posted May 7, 2008 Share #6 Posted May 7, 2008 Im a bit lost here. You are shooting straight in to the sun with slide? This give you any hints? Am I missing something? ....... 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/52384-elmarit-2828-asph-vignetting/?do=findComment&comment=553399'>More sharing options...
petercs Posted May 7, 2008 Author Share #7 Posted May 7, 2008 Advertisement (gone after registration) Im a bit lost here. You are shooting straight in to the sun with slide?This give you any hints? Am I missing something? .......[ATTACH]86099[/ATTACH] The only hint I get is: I am a bad shooter, you know more and are not willing to tell :-) Can you imagine someone asking since he is willing to learn ? Link to post Share on other sites More sharing options...
wizard Posted May 7, 2008 Share #8 Posted May 7, 2008 I wouldn't mind the vignetting in this shot. For me, it even adds to the somewhat hostile atmosphere high up in the mountains. Good capture. Andy Link to post Share on other sites More sharing options...
petercs Posted May 7, 2008 Author Share #9 Posted May 7, 2008 I wouldn't mind the vignetting in this shot. For me, it even adds to the somewhat hostile atmosphere high up in the mountains. Good capture. Andy Your are right, in this particular shot (the original, one :-) this is no issue. In fact one can use vignetting to modell the picture. But in some shots it is unwanted. Even more if projecting the original slide. Unfortunately any projector adds some extra vignetting. Peter Link to post Share on other sites More sharing options...
mike_h Posted May 8, 2008 Share #10 Posted May 8, 2008 Hi Peter, I've had a look at the original picture that you posted. What a great shot. The vignetting as shown in that picture can't be more than 1 maybe 1.5 stops. It is quite subtle and adds to rather than detracts from the picture. Very often with vignetting the only one who is worried about it is the photographer. The viewer often doesn't notice it or doesn't construe it as a negative thing. The other poster talking about shooting with slide straight into the sun, may have been alluding to the limited exposure latitude of slide film. The snow and sun will be very bright and the sky, away from the sun, may well be sufficiently darker that the contrast range is approaching or exceeding what slide film is capable of recording. Perhaps that poster meant something entirely different of course! Congratulations on a nice shot. Regards Mike Link to post Share on other sites More sharing options...
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