It\'s going to be interesting to see how the a7R fares but it\'s beginning to look as though RF lenses wider than 40-50 will have issues. This was the conclusion drawn from Ron Scheffler\'s extensive examination a week or so ago where even the ZM 35 2.8 (a Biogon design, of course) showed magenta banding. However, his test did indicate that both the new FE primes performed well and the 28-70 has done better here than I might have expected. Maybe we were all letting hope colour our expectations and after all the physics suggests that it was never goingto be a cakewalk for WA RF lenses - legacy SLR lenses may do better although the MC 28/2.8 did not do so well here. Conversely, I thought the MD 35-70 was rather good although it is not clear whether this was done at he macro or long end of the range. I have to say that the legendary MC 58/1.2 is rather a let down. Of course, while many of us have fond memories of some of these old lenses we never had the ability to stress test hem in the way we now an do with computer technology and I don\'t think corner softness and vignetting are necessarily a function of the SLR lens combinations being tested here - they are probably intrinsic to many of these lenses (and I don\'t include Leica / Zeiss RFs in that comment). I attach a link below which collates many users\' experiences of a wide range of lenses and this truth becomes self evident. Nevertheless, I don\'t think we should become overly disappointed either because these new small FF cameras are a technological triumph and I am thrilled that we can anticipate a return to the days when we could take our SLR kits around without risking our backs.
It\'s going to be interesting to see how the a7R fares but it\'s beginning to look as though RF lenses wider than 40-50 will have issues. This was the conclusion drawn from Ron Scheffler\'s extensive examination a week or so ago where even the ZM 35 2.8 (a Biogon design, of course) showed magenta banding. However, his test did indicate that both the new FE primes performed well and the 28-70 has done better here than I might have expected. Maybe we were all letting hope colour our expectations and after all the physics suggests that it was never goingto be a cakewalk for WA RF lenses - legacy SLR lenses may do better although the MC 28/2.8 did not do so well here. Conversely, I thought the MD 35-70 was rather good although it is not clear whether this was done at he macro or long end of the range. I have to say that the legendary MC 58/1.2 is rather a let down. Of course, while many of us have fond memories of some of these old lenses we never had the ability to stress test hem in the way we now an do with computer technology and I don\'t think corner softness and vignetting are necessarily a function of the SLR lens combinations being tested here - they are probably intrinsic to many of these lenses (and I don\'t include Leica / Zeiss RFs in that comment). I attach a link below which collates many user\'s experiences of a wide range of lenses and this truth becomes self evident. Nevertheless, I don\'t think we should become overly disappointed either because these new small FF cameras are a technological triumph and I am thrilled that we can anticipate a return to the days when we could take our SLR kits around without risking our backs.
It\'s going to be interesting to see how the a7R fares but it\'s beginning to look as though RF lenses wider than 40-50 will have issues. This was the conclusion drawn from Ron Scheffler\'s extensive examination a week or so ago where even the ZM 35 2.8 (a Biogon design, of course) showed magenta banding. However, his test did indicate that both the new FE primes performed well and the 28-70 has done better here than I might have expected. Maybe we were all letting hope colour our expectations and after all the physics suggests that it was never goingto be a cakewalk for WA RF lenses - legacy SLR lenses may do better although the MC 28/2.8 did not do so well here. Conversely, I thought the MD 35-70 was rather good although it is not clear whether this was done at he macro or long end of the range. I have to say that the legendary MC 58/1.2 is rather a let down. Of course, while many of us have fond memories of some of these old lenses we never had the ability to stress test hem in the way we now an do with computer technology and I don\'t think corner softness and vignetting are necessarily a function of the SLR lens combinations being tested here - they are probably intrinsic to the lenses (and I don\'t include Leica / Zeiss RFs in that comment). I attach a link below which collates many user\'s experiences of a wide range of lenses and this truth becomes self evident. Nevertheless, I don\'t think we should become overly disappointed either because these new small FF cameras are a technological triumph and I am thrilled that we can anticipate a return to the days when we could take our SLR kits around without risking our backs.
It\'s going to be interesting to see how the a7R fares but it\'s beginning to look as though RF lenses wider than 40-50 will have issues. This was the conclusion drawn from Ron Scheffler\'s extensive examination a week or so ago where even the ZM 35 2.8 (a Biogon design, of course) showed magenta banding. However, his test did indicate that both the new FE primes performed well and the 28-70 has done better here than I might have expected. Maybe we were all letting hope colour our expectations and after all the physics suggests that it was never goingto be a cakewalk for WA RF lenses - legacy SLR lenses might be a different matter though although the MC 28/2.8 did not do so well here. Conversely, I thought the MD 35-70 was rather good although it is not clear whether this was done at he macro or long end of the range. I have to say that the legendary MC 58/1.2 is rather a let down. Nevertheless, I don\'t think we should become overly disappointed either because these new small FF cameras are a technological triumph and I am thrilled that we can anticipate a return to the days when we could take our SLR kits around without risking our backs.
Nov 19, 2013 at 06:06 PM
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