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Forum: Pentax SLR Lens Discussion 02-26-2015, 10:04 PM  
Sigma 17-70 "Contemporary": compatibility problems with Shake Reduction
Posted By Racerdew
Replies: 151
Views: 26,462
Thank you very much for explaining this procedure. I will test my lens and see if it is adjusted correctly. I did use the dock and I have the firmware update. I posted my results in another post and the results was excellent for the SR.


So we should trust the live view as the absolute focus?
Thank you,
Forum: Pentax SLR Lens Discussion 02-04-2015, 04:31 PM  
Sigma 17-70 "Contemporary": compatibility problems with Shake Reduction
Posted By Racerdew
Replies: 151
Views: 26,462
I think the dock is worth the 50 bucks. You don't have to send it in and you save a ton of time. I did the update in a couple of minutes. You can learn to tweak it if you wish. This is way better than sending it out and not having it for 2 weeks.
Forum: Pentax SLR Lens Discussion 02-04-2015, 12:38 AM  
Sigma 17-70 "Contemporary": compatibility problems with Shake Reduction
Posted By Racerdew
Replies: 151
Views: 26,462
I have only had my lens for 4 days although I have used it a lot already. I Can't say much about being soft on the edges. I think you will find that will all zoom lenses at some point. It is very sharp through the center and the center on this is pretty wide. I am real happy with it. I took about 250 shots with it Sunday in low indoor lighting at ISO 2500 and 3200. It did a nice job. I think having the lens dock changes everything. Now you can tweak you lens yourself. That to me is very new and really nice. When I updated the firmware using my dock, it changed the lens for the better.
Forum: Pentax SLR Lens Discussion 01-31-2015, 08:39 PM  
Sigma 17-70 "Contemporary": compatibility problems with Shake Reduction
Posted By Racerdew
Replies: 151
Views: 26,462
Hello,
I just got a copy of the Sigma 17-70MM Contemporary lens with a USB doc. I took some pictures in poor lighting with the SR on and off. And I did one out of the box on and off. I did the firmware update and it made a big difference. If you want to see the pictures, here is the link to the thread I posted: https://www.pentaxforums.com/forums/10-pentax-slr-lens-discussion/287487-sigm...-firmware.html
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