Originally posted by axl I use 50/1.2 L on 1D3 and it actually has less PF or chromatic aberations than my K50/1.2 used to exhibit on K10D
Not exactly a fair comparison, the Canon 1DMKII uses a CMOS sensor,the K10D uses a CCD. Those differences in sensor architecture are the sort that make statements like that treacherous ground since no-one actually knows exactly what it is that causes PF. In all probability the presence of PF is sensitive to variations in sensor architecture and lens design. In my experience the K 50mm f/1.2 has considerably lower PF than the FA77mm f/1.8 (one of pentax's
worst PF offenders). The funny thing is the Canon 50L is slightly worse at PF than the Canon EF 85mm f/1.8 - apples/apples - oranges/oranges
FA77 f/1.8 Vs 50mm f/1.2 at their widest apertures - these image were taken on the Pentax K7 mind you.
Last edited by Digitalis; 02-15-2013 at 02:27 AM.