Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
01-21-2018, 09:36 AM   #1
Colly Kenedy
Guest




Sigma EX Macro HSM II 70-200mm f2.8

Hi all, i have recently purchased this lens 2nd hand in very clean condition. On my K3II the lens operates perfectly except at 70mm, there it will flicker between AF and MF. I have also tried it on a K3 and it did not flicker on it. Will i need to get the lenses firmware updated, if so how can i go about doing it. Thanks

01-21-2018, 09:50 AM   #2
Loyal Site Supporter
Loyal Site Supporter
UncleVanya's Avatar

Join Date: Jul 2014
Photos: Gallery | Albums
Posts: 28,064
If it is capable, sigma sells a USB lens dock that can be used to update firmware. I don't know for sure if that lens is compatible with the dock. Alternately send the lens to Sigma.
01-21-2018, 10:56 AM   #3
Senior Member




Join Date: Jan 2016
Location: Calgary, Alberta, Canada
Posts: 172
For me, on some occasions using that same lens on the K-S2 resulted in intermittent settings “flashing” and incorrect exposures. Sometimes it worked properly however; was never consistant. But it always worked on the old K-r. Anyway, I did send it in to Sigma (can’t be docked) for a firmware update and Sigma did do that as well as install the modified mount (so the K-1 won’t get that infamous scratch) and now the lens works perfectly.
Incidentally, it took a month to get it back from Sigma because they “had to wait for parts”. (That’s Sigma in Ontario, as I’m in Canada.) All done at no charge however.
Reply

Bookmarks
  • Submit Thread to Facebook Facebook
  • Submit Thread to Twitter Twitter
  • Submit Thread to Digg Digg
Tags - Make this thread easier to find by adding keywords to it!
camera, flicker, hsm ii 70-200mm, lens, macro hsm ii, pentax help, sigma ex macro
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
For Sale - Sold: Sigma 70-200mm F2.8 EX DG APO Macro HSM II RockvilleBob Sold Items 4 07-20-2017 04:11 AM
Aperture not opening all the way on SIGMA 70-200mm F2.8 II EX DG MACRO HSM dcpropilot Pentax SLR Lens Discussion 7 03-12-2017 11:40 AM
Sigma - 70-200/2.8 EX DG OS APO HSM IF **** VS ****70-200/2.8 EX DG II APO Macro HSM lightningthief Pentax SLR Lens Discussion 13 10-19-2012 01:46 AM
Wanted - Acquired: Sigma 150-500mm HSM, 150mm MACRO HSM, Sigma 18-250 HSM, Sigma 10-20mm HSM mackloon Sold Items 7 05-01-2011 02:25 AM



All times are GMT -7. The time now is 01:45 AM. | See also: NikonForums.com, CanonForums.com part of our network of photo forums!
  • Red (Default)
  • Green
  • Gray
  • Dark
  • Dark Yellow
  • Dark Blue
  • Old Red
  • Old Green
  • Old Gray
  • Dial-Up Style
Hello! It's great to see you back on the forum! Have you considered joining the community?
register
Creating a FREE ACCOUNT takes under a minute, removes ads, and lets you post! [Dismiss]
Top