Mifar

Andrew; Just noting that although Affinity is available from the Windows store, it is not a microsoft program, and is available for mac as well. Serif is the publisher.

I noticed the opposite problem with mine with the latest D7100 firmware; my later model 17-50 (still under warranty) still functions normally; and my older (no af/m switch on barrel), purchased used 10-20 f4-5.6 now refuses to af on my D7100, but still functions normally on my D5000. I contacted sigma and even though I disclosed the lens was old and purchased used; was informed they would update the firmware for no charge.