Results 1 to 10 of 42

Thread: How is ISO determined?

Threaded View

Previous Post Previous Post   Next Post Next Post
  1. 02-17-2012, 05:17 PM #18
    Jon Ruyle
    Jon Ruyle is offline
    Senior Member
    Join Date
    Jan 2009
    Location
    Riverside, CA
    Posts
    1,275
    Quote Originally Posted by neuroanatomist View Post
    Is that true for all cameras? I thought Canon defined 'native' ISOs as analog gain and 'expanded' ISO as digital gain ("pushing the RAW").
    I don't know for sure that 1600 is the highest real iso on all of them, but a friend who has examined raw files for more than one canon camera (including the 5DII) tells me that for those he has looked at, everything above 1600 is achieved by pushing the raw. Thus it is definitely not the case that pushing the raw only happens with "expanded" iso settings.
    Last edited by Jon Ruyle; 02-17-2012 at 05:21 PM.
    Reply With Quote Reply With Quote
« Shooting to Laptop | Difference in focusing speed of 1dmkII and 7d? »

Posting Permissions

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

Forum Rules