Sony 85mm f/2.8 SAM ( SAL-85F28 ) - APS-C Format Review / Lab Test
22 March 2011
Conclusion: The Sony 85mm f/2.8 SAM ( SAL-85F28 ) is an impressive lens when used on APS-C DSLRs - at least with respect to its optical capabilities. The lens is extremely sharp across the frame from f/2.8 to f/8. Diffraction is a limiting factor beyond. Lateral CAs are quite low which adds to the subjective quality perception. The lens produces only a very slight amount of pincushion distortion.