DPReview.com is closing April 10th - Find out more

Close Examination of Fuji X-Series Lag Time

Started Nov 25, 2014 | User reviews thread
rlx
rlx Senior Member • Posts: 1,375
Re: Close Examination of Fuji X-Series Lag Time
1

georgehudetz wrote:

It would be interesting to do further analysis to determine if the lag variation happens while in AF mode. Since I see it in the back-button focusing method I suspect it will also be present in AF usage.

http://georgehudetzphotography.smugmug.com/
My Flikr stream: http://flic.kr/ps/Ay8ka

Hi George,

I don't believe there is this problem in AF mode.  This is strictly a problem with Manual focus mode. Last Friday, I installed the firmware update on my XE1 and checked the lag in the new AF+MF mode.  The AF+MF mode is a sub mode of the AF mode.

The result is that the lag was consistently around 66 ms.  Variations are probably due to my poor handling of the data.  This is close to the 54 ms figure published by Imaging Resource.  Here is one example of the data; the aperture is pretty small and I manually adjust the focus after half pressing the shutter-release button.  So this would be a worst case scenario in Manual focus mode and could lead to a 500 ms lag if we were in M-mode here.  But we are in AF mode and the lag is small.

Post (hide subjects) Posted by
(unknown member)
rlx
rlx
rlx
rlx
rlx
rlx
rlx
rlx
rlx
rlx
Keyboard shortcuts:
FForum PPrevious NNext WNext unread UUpvote SSubscribe RReply QQuote BBookmark MMy threads
Color scheme? Blue / Yellow