tobey bilek Posted January 21, 2015 Share #1  Posted January 21, 2015 Advertisement (gone after registration) I keep getting tempted by the new 35 over the version IV.  Are the very corners sharp at 4 to 8 with the ASPH? I am talking fine tree branches at 100 feet  Same question for the Summarit. Quote Link to post Share on other sites More sharing options...
Advertisement Posted January 21, 2015 Posted January 21, 2015 Hi tobey bilek, Take a look here 35 f2 ASPH corners & Summarit corners. I'm sure you'll find what you were looking for!
adespen Posted January 21, 2015 Share #2 Â Posted January 21, 2015 I keep getting tempted by the new 35 over the version IV. Â Are the very corners sharp at 4 to 8 with the ASPH? I am talking fine tree branches at 100 feet. Â I will do some shots tomorrow with my Summicron and post. Stay tuned Quote Link to post Share on other sites More sharing options...
Guest JonathanP Posted January 21, 2015 Share #3  Posted January 21, 2015 Are the very corners sharp at 4 to 8 with the ASPH? I am talking fine tree branches at 100 feet  This is a typical example from my Summicron 35mm ASPH (new last year), showing top right corner at f/8 and how it improves coming in a little.  This is typical performance seen at all corners on my copy; I found the corner smearing to be small but even on each corner. It didn't bother me at normal screen sizes but if you want to make large landscape prints then it could be a niggle.  I subsequently bought a Summilux 35 FLE and ran the 2 side by side for a while, before selling the Summicron (I know a lot of people claim that there is no difference between the FLE and the Summicron stopped down, but that it not the case with the examples I have used. My Summilux shows no corner smearing like this at f/8 and renders in a more 3D manner).  Hope that helps, Jonathan Quote Link to post Share on other sites More sharing options...
lct Posted January 21, 2015 Share #4 Â Posted January 21, 2015 Are the very corners sharp at 4 to 8 with the ASPH? [...] Same question for the Summarit. With the Summicron 35/2 asph yes but you might find f/4 too soft with the Summarit 35/2.5. I have no clue about the current Summarit 35/2.4 though. No problem with the ZM Biogon 35/2.8 there BTW. Quote Link to post Share on other sites More sharing options...
gyoung Posted January 21, 2015 Share #5  Posted January 21, 2015 What camera please? I assume you are talking digital rather than film?  Gerry  This is a typical example from my Summicron 35mm ASPH (new last year), showing top right corner at f/8 and how it improves coming in a little.  This is typical performance seen at all corners on my copy; I found the corner smearing to be small but even on each corner. It didn't bother me at normal screen sizes but if you want to make large landscape prints then it could be a niggle.  I subsequently bought a Summilux 35 FLE and ran the 2 side by side for a while, before selling the Summicron (I know a lot of people claim that there is no difference between the FLE and the Summicron stopped down, but that it not the case with the examples I have used. My Summilux shows no corner smearing like this at f/8 and renders in a more 3D manner).  Hope that helps, Jonathan Quote Link to post Share on other sites More sharing options...
Guest JonathanP Posted January 21, 2015 Share #6 Â Posted January 21, 2015 What camera please? I assume you are talking digital rather than film? Â Sorry Gerry, forgot to say this example is with a M240, ISO200, 1/350sec @ f/8 Â Jonathan 1 Quote Link to post Share on other sites More sharing options...
joeswe Posted January 22, 2015 Share #7  Posted January 22, 2015 Advertisement (gone after registration) These were shot on slide film (on a tripod), flat scans with no postprocessing @3600 ppi nominal resolution but resized to match the file upload limitations. Because of the position of the film close to the rim of the film holder in the scanner, the Cron IV f5.6 pic shows a slightly different crop. I do not have the time to rescan the picture, but it should still be okay to give a general idea what differences to expect. Differences might be more pronounced on a digital camera. If you can afford to stop down to f5.6 (or f8), I don't see a problem with the corner resolution of the Cron IV. The full frame is the one taken with the Cron IV at f5.6, by the way.  For my style of shooting with the Leica corner resolution is mostly irrelevant. When I need resolution and sharpness across the frame, I use a tripod and a Horseman technical camera. The Summarit is excels in flare resistance and if you experience flare problems with the Cron IV this might be a valid reason to swap it for a Summarit, IMO. Make sure you handle one before you buy it. I prefer the size, handling and overall feel of the Cron IV over the Summarit. I particularly don't like the focus feel of the Summarit 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/240123-35-f2-asph-corners-summarit-corners/?do=findComment&comment=2751153'>More sharing options...
Antonio Russell Posted January 22, 2015 Share #8  Posted January 22, 2015 There is a good comparison available here between all 4 versions of the Cron:  LEICA 35mm SUMMICRON Sharpness Comparison  The newest LEICA SUMMICRON-M 35mm f/2 ASPH is superior to all others in the corners. Quote Link to post Share on other sites More sharing options...
tobey bilek Posted January 27, 2015 Author Share #9 Â Posted January 27, 2015 Thanks all for help. I am now able to make an informed decision. Quote Link to post Share on other sites More sharing options...
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