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| p.1 #2 · A Rookie with a question.. |
Rob UK wrote:
I have noticed in other discussions people making reference to the AF On button and its importance to them.
Would anybody be able to help me understand the usefulness of this button and under what circumstances it could be used?
Apologies if this is a stupid question, but I would be interested to hear from you guys about its use.
Thanks in advance
To completely separate the AF process and the shutter process. It makes focus/recompose a bit easier, since you press AF to focus where you want, let it shutoff, the recompose all you want (without feeling the need to half-depress the shutter).
For AF-S full time manual lenses, it lets you also press AF-ON if you want AF, or you can turn the focus ring for MF, any time, without flipping switches.
Some landscape photographers (who use MF a lot) like this setup also, since they have AF when they want, and MF when they don't, for the same mechanisms mentioned above.