Upload & Sell: Off
I have read Lloyd Chambers (you have to pay for reading his site) and Steve Huff, and both used MAC and BOTH have huge problems with crashing there Mac.s. when changing the RAW.s in Sigmas software (and for the time being this should be the only possibility),
As I recall Lloyd wrote, that he could change 2 pictures to Tif, then it "was over", and his pc (Mac) crashes.
I always shoot in RAW, but use PC = W7 Pro with a very strong pc = Ivy Bridge, 3,90 GHZ, 240 SSD and 32 GB RAM. (and 2 x 3 TB) if a strong pc is any help ?? (but Lloyds Mac is even stronger)
What is your experience - also crashing = Using pc and W7 ?