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Old Dec 28, 2010, 1:43 PM   #1
mwi
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Default AF on/off on lens and camera

Hi !

I am new and first question on this forum, so foregive me if I could have found the answer to my question among other posts if this is frequently asked..

On my Sony Alpha 550 there are AF/Manual switch on both House and Lens.
Logical of course but I guess the Inhouse AF is far the best and overrides the lens AF. Meaning : when I turn of AF on lens there is no AF available but turning it of on the house the lens nothing happens. I guess the house detects the AF lens (sony) and decides that the AF option is controlled from the lens or ??? A little bit puzzled . Can someone inform me

Thanks so much
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Old Dec 28, 2010, 2:00 PM   #2
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When the lens has an AF/MF switch, the switch on the camera needs to be set to AF and the switch on the lens is used to switch between AF and MF. The switch on the camera is only for lenses that don't have their own switch.

See the A500/A550 Instruction Manual, page 79.
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Old Dec 28, 2010, 2:28 PM   #3
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BTW, welcome to Steve's.
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Old Dec 28, 2010, 3:44 PM   #4
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and since you're looking at that now, i'd suggest doing an experiment to determine where infinity is on your current lenses. it may not be at one extreme of the rotation. this will come in very handy when you want to do some night pictures and the camera "just won't focus".
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Old Dec 28, 2010, 7:03 PM   #5
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thanks for your answers and hints and great forum BTW... looking forward spending time here
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Old Dec 29, 2010, 10:40 PM   #6
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Congratulations on your new camera - it is a good one, and welcome to the forum.
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Last edited by penolta; Dec 30, 2010 at 3:12 AM.
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