To all - I'm having problems loading my pics to a faulty multi-card reader. By the way I use the existing 35mm frame on the M8 for my framing. The 40mm f2 is every bit as good as my 50mm f2 Cron current version consider its age. I shoot outdoor alot and so far don't see purple fringing issue or anything like that. I don't use AWB on my M8 - I either set it for daylight outside or indoor for shades. The lens is so good I just bought an CL to accompany my new found love.