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09/10/2005 04:44:56 PM · #1 |
I took a picture of a Grass Hopper today and I focused on his head. His head was blurry but behind the head was in focus. I'm assuming this might be back focus. Would this be a problem with the lens or the body? I had the body serviced at Canon not too long ago so I wouldn't think it would be the body.
Any feedback is appreciated.
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09/10/2005 04:53:15 PM · #2 |
Did you focus (half press of the shutter) and recompose? If focus wasn't locked (flashing green circle in viewfinder) then when recomposing the camera will refocus.
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09/10/2005 06:14:16 PM · #3 |
First of all assume user error. When you can consistantly reproduce an error and have excluded all the other faults, look at the camera system.
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09/10/2005 06:27:32 PM · #4 |
Just a thought
The 350D, or Rebel XT as you yanks like to say, has a selectable 7 point focus. Did you manually select the focus point in the viewfinder or leave it on auto. I assume you know what your doing and this is obvious and been covered by you but I just thought I'd ask.
Steve |
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09/10/2005 11:13:02 PM · #5 |
No refocus needed. Same result repeated several times. Center focus used. Nothing fancy here, just point, focus, no camera shake, and the back focus result occurs on every shot.
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09/10/2005 11:30:22 PM · #6 |
Originally posted by RickH:
No refocus needed. Same result repeated several times. Center focus used. Nothing fancy here, just point, focus, no camera shake, and the back focus result occurs on every shot. |
All lenses or just the one lens?
Also, have you tried with AF and then MF?
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09/11/2005 01:12:15 AM · #7 |
I've only tried with my Tamron 28-75.
I only tried AF.
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09/11/2005 01:15:17 AM · #8 |
You need to set up a test for this. Use a ruler at an angle, a tripod, and mirror lockup if the xt has it. Cable release or self-timer. Focus MANUALLY on a specific number, shoot several frames of the same shot, and compare. This will give you a baseline from which to proceed.
Robt.
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