Thread: Sigma Zoom Firmware Problem

Reply to Thread
Results 1 to 2 of 2
  1. #1 Sigma Zoom Firmware Problem 
    Well I may have just screwed something up.
    I upgraded my Sigma Zoom Lenses (18-35 f1.8 and 50-100 f1.8) to their latest firmware (2.0.1).
    Now the 50-100 does not appear to be working on my MX camera (firmware 6.3.106). Aperture and focus control are no longer working on the Red - fine on DSLR though.
    Sure, afterward I check and this is a known problem.
    Unfortunately I can't seem to find a way to downgrade the lenses to the previous firmware.
    Why oh why did I upgrade. I'm usually so good at not fixing what isn't broken.
    Anyone run into this problem? Or know how to downgrade the lens firmware?

    My New Years Resolution is 5k.
    Reply With Quote  

  2. #2  
    Junior Member
    Join Date
    Jan 2013
    Toronto, Ontario
    Hi Pete, I'm having the same issue - I thought about trying the newest beta on the epic-w, specifically states that it supports updated sigma 50-100 (firmware 2.0.1) but unfortunately, still did not solve the problem. If anyone else has any thoughts, please post them! The 18-35 still works fine.
    Reply With Quote  

Posting Permissions
  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts