To my understanding, simple questions

If I have the 10 second delay on, I can focus, press the shutter button all the way down and move the cam while the time ticks down, and have that thing still in focus ?

90blackcrx wrote in post #2153949
If I have the 10 second delay on, I can focus, press the shutter button all the way down and move the cam while the time ticks down, and have that thing still in focus ?

No. You can't move the camera once you've locked focus and started the countdown. It's the same as shooting normally. Move the camera enough and you move out of the focal plane.

I'm not talking about moving it a few yards or anything, just millimeters.

So if I pan over a tad, that item will become out of focus ?

Depends on your depth of field.

cdi-ink.com wrote in post #2153977
Depends on your depth of field.

Why would that matter, say I focus on a candle ( direct center ) , then press the shutter all the way down. While the camera is counting down, move so the camera is to the right. Your telling me the candle won't still be in focus ?

90blackcrx wrote in post #2153980
Why would that matter, say I focus on a candle ( direct center ) , then press the shutter all the way down. While the camera is counting down, move so the camera is to the right. Your telling me the candle won't still be in focus ?

Like I said, it depends how much depth of field you have. The more depth of field you have, the more you can get away with moving before the subject falls out of the plane of focus.

Try it with different apertures.

if the front of the lens and the plane of the candle are both parallel, then moving the camera to the side would not pose a problem, but you'd have to make sure your focal length was exactly the same

deadpass wrote in post #2154016
if the front of the lens and the plane of the candle are both parallel, then moving the camera to the side would not pose a problem, but you'd have to make sure your focal length was exactly the same

Well I would be on a tripod

I can't figure out why you would want to move the camera/tripod during the countdown?

Dorman wrote in post #2154732
I can't figure out why you would want to move the camera/tripod during the countdown?

Easier to do this, with my finger off the shutter button.

If you are using the focus, recompose, shoot, method on your tripod with your kit lens, chances are that you aren't going to shift your shutter plane enough to effect focus. Wide open, on a fast lens, possibly. But I doubt it with your kit lens. If you want to make sure, why not compose your shot correctly ahead of time, using an off-center focus point.

Having said the above, I would still recommend composing your shot first, then not changing it. If you are trying to take a picture of a candle, you might want to just manually focus on it.

If I understand it correctly, you are using the timer because you do not want to have to keep the shutter button held down halfway to keep focus locked while recomposing the shot? There are two easier solutions:

OPTION ONE:

Use Custom Function 4 (CFn-4) to switch focusing functions to the * button. This way you would press the * button to focus (instead of pressing the shutter button halfway), release it to lock focus, recompose (holding no buttons), then just press the shutter button to take your picture without it effecting your previously locked focus.

For more details on using CFn-4 see this thread:
https://photography-on-the.net/forum/showthre​ad.php?t=46965

OPTION TWO:

After locking focus release the shutter button, switch the lens to manual focus, recompose, then shoot. Because auto focus has been disabled focus will be locked where you had previously set it.

Michael.