Sigma has announced that they will make their new "Global Vision" lenses (like the 35mm f/1.4 and 18-35mm f/1.8) for Pentax, but there has been no mention of the Sigma USB Dock for Pentax. I asked Sigma America about this and surprisingly/unfortunately they are not planning to make the USB Dock for Pentax or Sony. Apparently several people have asked about this; Sigma America has forwarded the requests to the mother ship and hopes that somebody there is listening.
If you think this is as silly as I do, you might want to send Sigma a note and ask them to make the USB Dock for Pentax:
Contact Us | Sigma
If you don't know what I'm talking about
: Sigma's new lenses have a software interface that allows, among other things, the setting of autofocus fine adjustments at 4 focal lengths (for zooms) x 4 focal distances. So the dreaded "my expensive zoom lens front focuses at the wide end and back focuses at the long end" is no more. It's supposed to be pretty nifty:
LensRentals.com - Sigma Optimization Pro and USB Dock Sigma USB Dock quick review: Digital Photography Review
But without a USB Dock for a particular mount there's no way to interface the lens to the software.
EDIT 9/26: Sigma has decided to produce the USB Dock for Pentax! See below.
Last edited by baj; 09-26-2013 at 06:51 AM.
Reason: new information