question

Is it possible to use autofocus and time delay at the same time?

time delay?

Sure -- pushing the shutter button half way (or the AF rear button if you have that set up) will still activate the AF and if you have a subject in postion you can focus, then fully depress the shutter button to activate the timer.

Things are trickier if you are doing a self-portrait -- you have to get something (a "dummy") in the right position and focus, then while the timer is going you take the place of the "dummy". Or, you can MF to the right place if you don't have a "dummy".

Yes-first select the timer delay on the "drive" 2 sec or 10 sec,half press the shutter to activate the AF, when focus is achieved then fully depress the shutter to start the timer.

Cheers

get a remote trigger device. The POTN shop has a nice one for cheap. servo mode, hold the antennae out of the shot or remove it in post, click away.