Hyperfocal Distance and Depth of Field

[David Selby]

Sure. I use the rear * or AF On button depending on which camera body I'm using to focus. What this means is, I focus on my subject X feet away by pressing the button on the rear of the camera. When I recompose and press the shutter, focus is not affected and does not change unless I pressed the focus button on the rear of the camera.





This makes it easy, and I always shoot with the focus and AE lock/shutter separate from the focus.

[Alan]

Sorry for the late reply, David.


Thanks.


But, the AF button behaves the same as the shutter button. I didn't think the AF button would lock the focus, or am I mistaken on that? I've got a 5D Mk 2.

[David Selby]

Kind of confused here...





I separate the focus function and the shutter function, therefore if i press the shutter half way all I do is meter lock I do not focus via the shutter button at all.


I press the AF button on back of camera, focus, let off the button and recompose and press shutter.

[Alan]

Got it. Thanks.


You aren't confused. I was.