M
mike_hk2ksk
Guest
I recently underwent shimming exercise with 2 of my 3 NEX adapters. Rayqual-made Pentax adapter was dead on and didn’t require any adjustments. Both Leica-M and Nikon RF adapters required shimming by 8 to 10 mils (0.25 mm) to achieve spot-on infinity focus. Immediate side benefit I noticed was significantly improved MFD, by as much as 20 – 30 cm. But I think I am also seeing quite noticeable increase in corner-to-corner sharpness and overall picture quality even with wide-open fast lenses. What is your expert opinion please: by fine-tuning FFD by roughly 1%, is it reasonable to expect this improvement in picture fidelity? Thanks in advance.