raphaelmatto Posted June 22, 2009 Share #1 Posted June 22, 2009 Advertisement (gone after registration) hi Leica folks, I'm after my third M-mount lens. I have the newest version of the 50 'cron & the hexanon 50 f2 -- both are wonderful. I'm looking to buy either a hex 90 f2.8, or a 90 cron pre asph ($500 - $700 range). my question is: does the bokeh on the 90 cron clear up by 2.8? In my experience no lens gives good bokeh wide open -- and trolling flickr reveals -- of course -- some pretty ugly bokeh with this lens wide open. what interests me is how many stops down a lens requires before the bokeh clears up. my 50 1.4 nikkor (f mount) needs to be set two stops down to 2.8 before it becomes usable. on the other hand, my nikkor 85 1.8 is good by 2.8 (1 & a halfish stops), and my M-mount f2 50s clear up after one stop at 2.8 as well. yeah, so is the 90 cron usable by 2.8? if not, I'll probably just go with the 90 hex, because I'm sure it's fine by f4. (I hope I'm wrong, but I suspect that generally lenses with huge amounts of glass require more stopping down then lenses that are built more comfortably within physical limits). similarly, if you've had experience with many of these lenses, is the nikkor f mount 85 1.4 ais usable by f2, or does it need to be stopped down to 2.8? Cheers, Raphe Quote Link to post Share on other sites More sharing options...
Advertisement Posted June 22, 2009 Posted June 22, 2009 Hi raphaelmatto, Take a look here 90mm summicron good at 2.8. I'm sure you'll find what you were looking for!
cbretteville Posted June 22, 2009 Share #2 Posted June 22, 2009 I don't have a problem with how the pre-ASPH 90'cron draws at f2, sure its sharper by f4, but it's bokeh is pleasing IMHO. If you want a pin sharp 90 get an Elmarit-M 90/2.8 (the one that has just been discontinued). Excellent at f2.8, outstanding at f4. - Carl Quote Link to post Share on other sites More sharing options...
jaapv Posted June 22, 2009 Share #3 Posted June 22, 2009 hi Leica folks, I'm after my third M-mount lens. I have the newest version of the 50 'cron & the hexanon 50 f2 -- both are wonderful. I'm looking to buy either a hex 90 f2.8, or a 90 cron pre asph ($500 - $700 range). my question is: does the bokeh on the 90 cron clear up by 2.8? In my experience no lens gives good bokeh wide open -- and trolling flickr reveals -- of course -- some pretty ugly bokeh with this lens wide open. what interests me is how many stops down a lens requires before the bokeh clears up. my 50 1.4 nikkor (f mount) needs to be set two stops down to 2.8 before it becomes usable. on the other hand, my nikkor 85 1.8 is good by 2.8 (1 & a halfish stops), and my M-mount f2 50s clear up after one stop at 2.8 as well. yeah, so is the 90 cron usable by 2.8? if not, I'll probably just go with the 90 hex, because I'm sure it's fine by f4. (I hope I'm wrong, but I suspect that generally lenses with huge amounts of glass require more stopping down then lenses that are built more comfortably within physical limits). similarly, if you've had experience with many of these lenses, is the nikkor f mount 85 1.4 ais usable by f2, or does it need to be stopped down to 2.8? Cheers, Raphe Actually, all Leica lenses are designed to be used wide open without any second thoughts. I don't quite follow your post. Bokeh clearing up? I only gets better as you open up the aperture to its maximum... Quote Link to post Share on other sites More sharing options...
raphaelmatto Posted June 22, 2009 Author Share #4 Posted June 22, 2009 haha, okay.. well, everyone has different oppinions on this topic .. but I guess I'm only looking for oppinions from folks who have also found that the quality (not the amount) of bokeh is poor on any lens wide open. Cheers, Raphael Quote Link to post Share on other sites More sharing options...
lct Posted June 23, 2009 Share #5 Posted June 23, 2009 ...does the bokeh on the 90 cron clear up by 2.8? In my experience no lens gives good bokeh wide open -- and trolling flickr reveals -- of course -- some pretty ugly bokeh with this lens wide open.... Which version of the 90/2 do you refer to? Would you have any link to support this statement? Just curious as i only have an R version of this lens which bokeh is quite smooth i must say. Quote Link to post Share on other sites More sharing options...
JBA Posted June 23, 2009 Share #6 Posted June 23, 2009 Get the Apo 90 Summicron Asph. It has a much smoother bokeh wide open than the earlier non-asph version. I actually really like the bokeh of the traditional spherical optics wide open. This is a case where your mileage may vary. Quote Link to post Share on other sites More sharing options...
luigi bertolotti Posted June 23, 2009 Share #7 Posted June 23, 2009 Advertisement (gone after registration) Well, the "quality" of bokeh is intrinsically a very personal taste... but I think that, in general, if one likes a certain lens' bokeh, so better when it'skept wide open. In this sense, I prefer my Tele Elmarit 90 to my Summicron 90 pre-asph; also the bokeh of the old Summarex 85 is fascinating (a sort of "crayon-effect" on colors) but is a lens really difficult to focus wide open...reserved for static subjects. Quote Link to post Share on other sites More sharing options...
Jamie Roberts Posted June 23, 2009 Share #8 Posted June 23, 2009 Wow. I actually prefer the 90 'cron pre-asph's bokeh to the asph version in most cases (there's always something that messes up a lens that has even outstanding OOF qualities). I also prefer the smoother (lower) contrast wide open, since it's easy to add contrast in post but hard to gain the detail the smoother contrast brings. But that's me If you can find a good latest model Cron 90 pre-ASPH for $500 - $700 and it's in CLA-d trim, then I'd jump on it. Quote Link to post Share on other sites More sharing options...
jaapv Posted June 23, 2009 Share #9 Posted June 23, 2009 haha, okay.. well, everyone has different oppinions on this topic .. but I guess I'm only looking for oppinions from folks who have also found that the quality (not the amount) of bokeh is poor on any lens wide open. Cheers, Raphael It seems you are only looking for confirmation of your own opinion. -Which is ummm..slightly eccentric, at least as far as the lenses dicussed in this forum is concerned. Quote Link to post Share on other sites More sharing options...
budrichard Posted June 24, 2009 Share #10 Posted June 24, 2009 'Bokeh' is not something that can be objectively evaluated and I'm not sure it even exists except in the minds of some individuals. I never give it a thought in any decision process.-Dick Quote Link to post Share on other sites More sharing options...
lct Posted June 24, 2009 Share #11 Posted June 24, 2009 ...I never give it a thought in any decision process... Perhaps because you don't like shallow DoF? To each its own anyway. Bokeh smoothness is one of my main criteria AFAIC. Quote Link to post Share on other sites More sharing options...
cbretteville Posted June 25, 2009 Share #12 Posted June 25, 2009 Here is an example of bokeh at f2.8 for three 90mm lenses. Personally I like the Elmarit-M and Summicron-M better than the Tele-Elmarit, but you can't beat the latter for size and weight. Tele-Elmarit: 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! Elmarit-M Summicron-M vII (slight miss on the point of focus) And the Summicron-M at f2: - Carl 1 Quote Link to post Share on other sites Simply register for free here – We are always happy to welcome new members! Elmarit-M Summicron-M vII (slight miss on the point of focus) And the Summicron-M at f2: - Carl ' data-webShareUrl='https://www.l-camera-forum.com/topic/88774-90mm-summicron-good-at-28/?do=findComment&comment=943712'>More sharing options...
underground Posted June 26, 2009 Share #13 Posted June 26, 2009 I love my 90 Cron Pre. I think it's flat out AWSOME! You won't be disappointed. The price is great too.(get one) Quote Link to post Share on other sites More sharing options...
LeicaMSeattle Posted June 29, 2009 Share #14 Posted June 29, 2009 These are a few examples that I shot last week when I was in Hawaii. M8/Leitz Canada 90mm Summicron pre-asheric. All shot at f2. 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! 1 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/88774-90mm-summicron-good-at-28/?do=findComment&comment=947412'>More sharing options...
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