Go Back   Rangefinderforum.com > Cameras / Gear / Photography > Fuji X Series > Fuji X-100 Series

Fuji X-100 Series This forum is for fans of the rangefinder retrostyled Fuji X Series of digital cameras.

Reply
 
Thread Tools Search this Thread Display Modes

X100T observation/question...
Old 09-06-2015   #1
jky
Registered User
 
jky is offline
Join Date: Aug 2006
Location: Flamescity Canada
Posts: 1,434
X100T observation/question...

I've had an X100T for a couple of weeks and still trying to warm up to it.

For those of you who have the camera, or have played with one extensively, do you find the camera hunting to find AF in bright outdoor light (in scenes with no bright spots/spot lights in them to throw off the focus - so in uniform, but bright scenes)?

This behaviour seems to be constant despite varying the AF size, using EVF/OVF/OVF+EVF, half-pressing the shutter vs using the back button (or a combination of all these).

Thanks in advance.
j
  Reply With Quote

Old 09-06-2015   #2
Dante_Stella
Rex canum cattorumque
 
Dante_Stella's Avatar
 
Dante_Stella is offline
Join Date: Apr 2007
Posts: 1,543
Rarely. Is the camera getting knocked into continuous focus? You might also want to try the prefocus setting (on/off)

Dante
  Reply With Quote

Old 09-06-2015   #3
jky
Registered User
 
jky is offline
Join Date: Aug 2006
Location: Flamescity Canada
Posts: 1,434
Thanks Dante.
No, the AF tab is set to either AF-S or M - it's pretty stiff to move so it doesn't get knocked into continuous.

Re: prefocus - I've read that it can eat up the battery so I left that "off".

I should have been more careful with my wording... the camera doesn't hunt - I meant to say that the camera lens cycles back and forth (lens moves forward and back) to achieve a focus lock in bright outdoor, sunlit conditions. It's not as quick to lock as say when in the shade where it doesn't seem to (or at least not as often) move back and forth. Mind you that it still does indeed focus fairly quick - it just seems more decisive when the scene isn't too bright and contrasty (bright sun behind you for example).
  Reply With Quote

Old 09-07-2015   #4
willie_901
Registered User
 
willie_901's Avatar
 
willie_901 is offline
Join Date: Dec 2005
Posts: 4,539
Using contrast phase detection AF when there is low contrast in the frame "in uniform, but bright scenes" will be frustrating. For PDAF brightness is less important than contrast.

Fortunately the X100T also supports phase-detection AF. I suggest you learn about using the X100T's PDAF mode of operation.
__________________
"Perspective is governed by where you stand object size and the angle of view included in the picture is determined by focal length." H.S. Newcombe

williamchuttonjr.com
  Reply With Quote

Old 09-07-2015   #5
bigshot
Registered User
 
bigshot is offline
Join Date: Jul 2015
Posts: 11
My experience is that the autofocus on the X100T is in the middle of the frame. It doesn't grab onto things towards the sides at all. So I center, focus, recompose, shoot. Multipoint / Face detection on.
  Reply With Quote

Old 09-08-2015   #6
willie_901
Registered User
 
willie_901's Avatar
 
willie_901 is offline
Join Date: Dec 2005
Posts: 4,539
Quote:
Originally Posted by bigshot View Post
My experience is that the autofocus on the X100T is in the middle of the frame. It doesn't grab onto things towards the sides at all. So I center, focus, recompose, shoot. Multipoint / Face detection on.
This is particularly true for PDAF as the pixels dedicated to PD sensing are a in 3 X 3 array located in the center of the sensor. In some automated AF modes where the AF searches outside of the those pixels, the camera automatically switched to contrast-detected AF even though PDAF was selected.
__________________
"Perspective is governed by where you stand object size and the angle of view included in the picture is determined by focal length." H.S. Newcombe

williamchuttonjr.com
  Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

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

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -8. The time now is 08:04.


vBulletin skin developed by: eXtremepixels
Powered by vBulletin® Version 3.6.8
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.

All content on this site is Copyright Protected and owned by its respective owner. You may link to content on this site but you may not reproduce any of it in whole or part without written consent from its owner.