Sony A900 AF/MF button, AF/MF control, AF drive speed, AF area disp, You can select the speed of focusing when the auto focus is activated

Custom menu 1

AF/MF button

AF/MF control	Uses the button for switching the auto focus and manual
	focus (page 64).
AF lock	Uses the button as the AF lock button.
	Press the shutter button to take pictures while holding the AF/
	MF button down.

AF/MF control

When [AF/MF button] is set to [AF/MF control], you can change how you operate the AF/MF button.

Hold	AF and MF are switched only while the button is held down.
Toggle	Press and release the button to switch between AF and MF.
	The setting is maintained until you press the button again.

AF drive speed

You can select the speed of focusing when the auto focus is activated.

Fast	Confirms the focus quickly.
Slow	Confirms the focus slowly.
	Has a higher probability of confirming the focus when
	shooting a subject using macro shooting feature.

AF area disp.

When the focus is being adjusted, the local AF area in focus is briefly illuminated in red. You can change the duration of illumination or turn off the illumination.

0.6 sec	The local AF area is illuminated for 0.6 seconds.
0.3 sec	The local AF area is illuminated for 0.3 seconds.
Off	The local AF area is illuminated only when the multi-selector
	is pressed.

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