Posted by Rob Ashton on September 28, 2007 at 9:47 AM
Looks like no news. I think he just posted that to keep us all up to date. Canon appear to still be working on the issue. Whether a firmware fix will be forthcoming is still not certain.
Phil, does this problem materialise when shooting at apertures higher that f5.6? So if you are using Ai Servo, single point at f8 for instance?
Rob
Posted by Phil Shaw on September 28, 2007 at 10:11 AM
Whenever you are shooting in AI Servo mode (for me that is basically all the time) you can never be certain whether you are going to get a sharp image or not, either because the AF system doesn't acquire precisely enough, or it oscillates without settling. This happens irrespective of apperture value, or whether you have a single focus point selected or are shooting in auto focus point selection (ring of fire). Sometimes you get a sharp image, sometimes you do not.
I would advise anyone with a Mk3 to download and look at RG's files, and then to look at your own files using Photo Mechanic (if you don't have this software, you can download a free trial; it makes checking for critical sharpness much easier than any other browsing applications I've come across).
Discussion
2 repliesPhil, does this problem materialise when shooting at apertures higher that f5.6? So if you are using Ai Servo, single point at f8 for instance?
Rob
I would advise anyone with a Mk3 to download and look at RG's files, and then to look at your own files using Photo Mechanic (if you don't have this software, you can download a free trial; it makes checking for critical sharpness much easier than any other browsing applications I've come across).