AlexanderR Posted September 11, 2013 Share #1 Posted September 11, 2013 Advertisement (gone after registration) Some fine details like trees and buildings far away... what do you think? 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! All sizes | 5.6 infinity | Flickr - Photo Sharing! All sizes | fischmakrt | Flickr - Photo Sharing! Digiloyd has an article in which he states that perfect infinity is only reached if one sends his m9+lens to Leica... but I have a gxr... so they wont do it for my camera. What the will do is adjust it for m9 standards but they will not measure my camera. Link to post Share on other sites Simply register for free here – We are always happy to welcome new members! All sizes | 5.6 infinity | Flickr - Photo Sharing! All sizes | fischmakrt | Flickr - Photo Sharing! Digiloyd has an article in which he states that perfect infinity is only reached if one sends his m9+lens to Leica... but I have a gxr... so they wont do it for my camera. What the will do is adjust it for m9 standards but they will not measure my camera. ' data-webShareUrl='https://www.l-camera-forum.com/topic/212593-elmar-m-24-38-does-it-reach-infinity-example-inside/?do=findComment&comment=2418731'>More sharing options...
Advertisement Posted September 11, 2013 Posted September 11, 2013 Hi AlexanderR, Take a look here Elmar-M 24 3.8 - Does it reach infinity? (example inside). I'm sure you'll find what you were looking for!
Fgcm Posted September 11, 2013 Share #2 Posted September 11, 2013 Alexander, I like your pictures. Do not ask too much to your stuff. Pictures are fine. Save your money for a M Franco Link to post Share on other sites More sharing options...
jaapv Posted September 11, 2013 Share #3 Posted September 11, 2013 Digilloyd has more funny articles - just disregard. I see haze on the horizon, not an unsharp lens. Link to post Share on other sites More sharing options...
lct Posted September 11, 2013 Share #4 Posted September 11, 2013 Good camera indeed. I see no problem with your lens either. Some reviews should be read with a pinch of salt. Link to post Share on other sites More sharing options...
CaptZoom Posted September 12, 2013 Share #5 Posted September 12, 2013 -Leica lenses are calibrated to a set standard not to individual camera bodies. -Leica cameras are calibrated to a set standard (one that coincides with the lens standard), and not to individual lenses. -This allows for all lenses to be used with all bodies with consistent results. The Ricoh module you have should be calibrated/manufactured to the same standard as Leica M bodies, which is what allows for use of Leica rangefinder lenses to be used with the Ricoh. As long as the lens is properly calibrated, you should be fine. I thought you'd like to know the reason behind the comments already posted. Some fine details like trees and buildings far away... what do you think? 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! All sizes | 5.6 infinity | Flickr - Photo Sharing! All sizes | fischmakrt | Flickr - Photo Sharing! Digiloyd has an article in which he states that perfect infinity is only reached if one sends his m9+lens to Leica... but I have a gxr... so they wont do it for my camera. What the will do is adjust it for m9 standards but they will not measure my camera. Link to post Share on other sites More sharing options...
jankap Posted September 12, 2013 Share #6 Posted September 12, 2013 +1 A problem could be the GXR module. You should check the camera with the lens, that has the smallest DOF. Perhaps your Leica dealer can help with a 2.0/90mm or a Noctilux(!). The mode 1 or mode 2 can give the information, if your camera fits the standard. Most lenses can not be set beyond infinity. So there are 2 possibilities. Infinity can be reached with the focus confirmation or not. Focus confirmation cannot lie, a rangefinder can! I have a 3.5/135mm with my GXR. Focussing this lens at 3.5 is already very critical (= a good test case). Jan Link to post Share on other sites More sharing options...
jankap Posted September 12, 2013 Share #7 Posted September 12, 2013 Advertisement (gone after registration) You should also take the DOF scale with a grain of salt. These are calculated for film. It is better to interpret the reading of the DOF scale. If your f-stop is set to 8 - for instance - you should read the scale values for 5.6 (or less). The sharpness is at its maximum at the distance you have set. The sharpness decreases in both directions, gradually of course. So, if your main subject is measured at the infinity mark, you should think of setting your distance to infinity. Jan Link to post Share on other sites More sharing options...
AlexanderR Posted September 12, 2013 Author Share #8 Posted September 12, 2013 Thanks for the answers guys. Fgcm, Thanks! jan_kappetijn, CaptZoom, I don´t know about Leica lenses but zm lenses can have their flange focal distance adjustet to go beyond infinity. But this isn´t important here because the feeling I have is that my elmar 24 is slightly short of reaching infinity. I have had an used one and it seemed sharper. Also I tested 2 new ones and one was really bad in the lower left corner and the other one was bad in the lower right coner: center: All sizes | center at 3.8 | Flickr - Photo Sharing! lower right All sizes | lower right corner at 3.8 | Flickr - Photo Sharing! upper right All sizes | upper right corner 3.8 | Flickr - Photo Sharing! lower left All sizes | lower left corner 3.8 | Flickr - Photo Sharing! upper left All sizes | upper left corner 3.8 | Flickr - Photo Sharing! I don think its the body because I tested 5 Leica lenses (3 Elmar24s and 2 SEM21s). Unfortunately the 21 SEM that was sharp had a problem in the upper left corner as you guys can see here Examples with SEM 21: center: All sizes | Center | Flickr - Photo Sharing! lower left: All sizes | lower left | Flickr - Photo Sharing! upper left: bad corner All sizes | upper left (bad corner) | Flickr - Photo Sharing! upper right: All sizes | upper right | Flickr - Photo Sharing! lower right: All sizes | lower right | Flickr - Photo Sharing! Am I being to picky? Link to post Share on other sites More sharing options...
AlexanderR Posted September 12, 2013 Author Share #9 Posted September 12, 2013 ah and please do not hesitate telling me if you think this kind of testing is crappy. Thanks Link to post Share on other sites More sharing options...
lct Posted September 12, 2013 Share #10 Posted September 12, 2013 Your images can hardly show significant focus problems at infinity if the sujects matters you expect to be sharp are not far enough or are not sharp enough per se because of haze, flare or any other blurring cause IMHO. Link to post Share on other sites More sharing options...
AlexanderR Posted September 12, 2013 Author Share #11 Posted September 12, 2013 the Part with the haze I understand. But according to the scale even at 3.8 everything from 4.8 meters on schold be within the DOF. So I do not understand how something that is 300 meters away is still not infinity...even the slightest turn of the focus ring towards the 5m on the scale blures the 3 huge strange apartment buildings... Link to post Share on other sites More sharing options...
lct Posted September 12, 2013 Share #12 Posted September 12, 2013 Within the DoF doesn't mean infinity. I would choose a sharp mountain or a sharp building at the horizon, put your camera on a tripod and do your test again. You won't probably get the least focus problem with one of the very best 24mm lenses ever. Link to post Share on other sites More sharing options...
AlexanderR Posted September 12, 2013 Author Share #13 Posted September 12, 2013 I see... would you say the 3 buidlings are not fucused properly because the lens was set to infinity at 5.6? Link to post Share on other sites More sharing options...
CaptZoom Posted September 12, 2013 Share #14 Posted September 12, 2013 AlexR I don't own the lens (though I think I'll purchase a 21 SEM later this year), so I cannot comment if your observed performance is normal. Those who do own it will chime in soon- some already have. As someone mentioned previously, the DoF scales are for what was considered acceptably sharp for film and small print sizes (nothing like the type of magnification we can easily do on the monitor, which is a low resolution device compared to print resolutions). It's sound advice to use the DoF scales for at least one stop faster apertures. I think some one already mentioned that there is only one plane of peak focus, though a much larger area can be acceptably sharp. If you can or need the horizon to be in peak focus, you should focus on the horizon. -- The lenses can be calibrated for a range of targets, but typically Leica will adjust for their own standard. I suppose you could ask them (or a third party) to adjust differently. Link to post Share on other sites More sharing options...
jaapv Posted September 12, 2013 Share #15 Posted September 12, 2013 the Part with the haze I understand. But according to the scale even at 3.8 everything from 4.8 meters on schold be within the DOF. So I do not understand how something that is 300 meters away is still not infinity...even the slightest turn of the focus ring towards the 5m on the scale blures the 3 huge strange apartment buildings... DOF is not a switch-on switch-off type of range. It is the image graually getting sharper to the plane of focus and falling off gradually behind it. Obviously the spot on the gradient which appears acceptbly sharp to you depends on the magnification of the image and your tolerance of unsharpness. Only the plane of focus is maximally sharp.On a digital image I will use the DOF scale two stops down. If I use it. My technique is to assume that only the plane of focus is sharp. Any DOF effects are a bonus. Link to post Share on other sites More sharing options...
lct Posted September 12, 2013 Share #16 Posted September 12, 2013 I see... would you say the 3 buidlings are not fucused properly because the lens was set to infinity at 5.6? Do you mean those ones? They were focused properly if your focus ring was set to infinity but the buildings were blurred with haze so they could not look as sharp as the foreground anyway. 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/212593-elmar-m-24-38-does-it-reach-infinity-example-inside/?do=findComment&comment=2419283'>More sharing options...
AlexanderR Posted September 12, 2013 Author Share #17 Posted September 12, 2013 Thanks guys, this helps alot. It got me the play around with the gxr´s menus and I found that focus magnification has to be set to full screen in order to get full res focus aid. If you only choose the magnification to be within a small "window" in the center of the display .... well your doomed because its extremely low res. This made focusing a lot easier. I think now the lens might be fine. But I returned it and got the 21 SEM because of the crop sensor in the gxr. Now that I have it I know what decentered means! Let us see what Leica has to say tomorrow. I am visiting them in Solms tomorrow. Lets see. I could upload some shots before and after adjustment. At the very end I might just ditch all this an get a some FF DSLR ... Link to post Share on other sites More sharing options...
AlexanderR Posted September 12, 2013 Author Share #18 Posted September 12, 2013 IcT actually i ment the 3 huge funny looking buildings. But in my first post when I asked about infinity i was thinking about the ones that you cropped out. They are aprox. 3miles away so i counted them as horizon but haze messes with it so.. thanks! Link to post Share on other sites More sharing options...
lct Posted September 12, 2013 Share #19 Posted September 12, 2013 IcT actually i ment the 3 huge funny looking buildings... Would you mind to point me to the pic you're referring to? Link to post Share on other sites More sharing options...
jaapv Posted September 12, 2013 Share #20 Posted September 12, 2013 Thanks guys, this helps alot. It got me the play around with the gxr´s menus and I found that focus magnification has to be set to full screen in order to get full res focus aid. If you only choose the magnification to be within a small "window" in the center of the display .... well your doomed because its extremely low res. This made focusing a lot easier. I think now the lens might be fine. But I returned it and got the 21 SEM because of the crop sensor in the gxr. Now that I have it I know what decentered means! Let us see what Leica has to say tomorrow. I am visiting them in Solms tomorrow. Lets see. I could upload some shots before and after adjustment. At the very end I might just ditch all this an get a some FF DSLR ... You mean you would not return a perfectly fine lens if it were an SLR lens? In the meantime I am wondering at the rationale of your lens/camera combinations. The Ricoh is a nice little camera, but not much of a match for high class wide angles like these. You would get visibly better results on a good full-frame like the ME or a used M9. An Elmarit 28 asph on a M9 will give you better images than a 21 Super Elmar on a Ricoh. And cost you considerably less. Link to post Share on other sites More sharing options...
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