FlashGordonPhotography Posted November 2, 2016 Author Share #21 Posted November 2, 2016 Advertisement (gone after registration) I've been looking at some samples sent to me by other owners of this lens and they're significantly better in the corners than mine. I've contacted Leica Australia and they're sending some files to Germany for evaluation but it really looks like my lens is not normal. I am going to Sydney next week and may compare mine to the one they have in stock there, as well. It looks like it might be going on holiday. Gordon Link to post Share on other sites More sharing options...
Advertisement Posted November 2, 2016 Posted November 2, 2016 Hi FlashGordonPhotography, Take a look here Opinions on the Vario-Elmar S 30-90 ASPH?. I'm sure you'll find what you were looking for!
albertknappmd Posted November 3, 2016 Share #22 Posted November 3, 2016 Gordon- Be insistent as my second zoom was far better than the original one.... Albert Link to post Share on other sites More sharing options...
Guest NEIL-D-WILLIAMS Posted November 17, 2016 Share #23 Posted November 17, 2016 I just made an offer for one on LUL...............I will retract my offer after reading this thread Thanks for the heads up Neil Link to post Share on other sites More sharing options...
John McMaster Posted November 17, 2016 Share #24 Posted November 17, 2016 It would be OK for $4500 if he sells it for that, nearly $11K new. It is a useful lens in bright light (I try to use mine at ~f11) but the primes are still better. john Link to post Share on other sites More sharing options...
01af Posted November 17, 2016 Share #25 Posted November 17, 2016 When shooting a flat test subject—like for example a test chart, a fence, or a brick wall—then the corners may look bad due to field curvature. Especially when shooting at a fairly close distance with a non-macro lens. So if the corners are less sharp than the center, always test the lens for field curvature before rendering the final verdict. Maybe the corners aren't that bad but the sharpness is just somewhere else ... i. e. slightly before or behind the intended plane of focus. When shooting real-life subjects then some degree of field curvature is no dire thing, particularly not in a zoom lens (with a macro lens, this would be a different matter). Focus at your flat test subject's center, then move back and forth in small increments without re-focusing, to see if the corner sharpness improves. If it does, then you got field curvature. Link to post Share on other sites More sharing options...
Guest Posted November 17, 2016 Share #26 Posted November 17, 2016 What a nice and friendly post! Does not lose any competence and usefulness for the ones reading, making it a pleasure Link to post Share on other sites More sharing options...
FlashGordonPhotography Posted November 18, 2016 Author Share #27 Posted November 18, 2016 Advertisement (gone after registration) When shooting a flat test subject—like for example a test chart, a fence, or a brick wall—then the corners may look bad due to field curvature. Especially when shooting at a fairly close distance with a non-macro lens. So if the corners are less sharp than the center, always test the lens for field curvature before rendering the final verdict. Maybe the corners aren't that bad but the sharpness is just somewhere else ... i. e. slightly before or behind the intended plane of focus. When shooting real-life subjects then some degree of field curvature is no dire thing, particularly not in a zoom lens (with a macro lens, this would be a different matter). Focus at your flat test subject's center, then move back and forth in small increments without re-focusing, to see if the corner sharpness improves. If it does, then you got field curvature. I tested mine for curvature both as you describe and with manual focus and live view at several distances. I also know the difference, and how to identify, between focus issues, decentering and smearing. Mine is the latter. I've also done side by side testing with another one and the differences are stark. It's going in for repair. Gordon Link to post Share on other sites More sharing options...
Guest NEIL-D-WILLIAMS Posted November 18, 2016 Share #28 Posted November 18, 2016 It would be OK for $4500 if he sells it for that, nearly $11K new. It is a useful lens in bright light (I try to use mine at ~f11) but the primes are still better. john He hasn't accepted my offer yet but I'm sure he will.................. either way I wont buy it as I like the primes that I have Link to post Share on other sites More sharing options...
erlingmm Posted November 18, 2016 Share #29 Posted November 18, 2016 I don't shoot flat brick walls with my zoom. For that I use the 120CS ;-) On the contrary, I use the zoom as a walk-around, it greatly expands the usage envelope of my S007, and I am very happy with it, despite its weaknesses. Link to post Share on other sites More sharing options...
albertknappmd Posted November 18, 2016 Share #30 Posted November 18, 2016 A very reasonable and practical strategy! Albert Link to post Share on other sites More sharing options...
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