Question about the rebel (AF)

In retrospect to this post, in situations when you have the luxury of larger aperature or lower number your best bet is to focus on the most furthest point , so that it will focus better on a wider range of the DOF. such as scenary and doing a top focus priority with furthest moutain or sky.

CRE@TE wrote in post #2376137
Hi Ed

Welcome to the forum.

You should pick up a good book called, Understanding Exposures by Bryan Peterson. Lot of good information to help you better understand your camera.

Thank you all for the welcome!

I have a few books, and they're all as confusing as the previous, or the rest that i have.

What i need is a book called: "Rebel XT Photography for Dummies"

Leave out all the technical details, and go by what's displayed on the little screen and explain the menu settings a bit better than the manual.

CRE@TE wrote in post #2376120
You'd have to be careful and ensure the lighting has not changed when you recompose the shot.

Que pasa? What's this got to do with focusing? Nothing.

cdi-ink.com wrote in post #2376164
Que pasa? What's this got to do with focusing? Nothing.

If you've bothered to read some of the other post about reframing the shot, you'd know what it has to do with my post.

cdi-ink.com wrote in post #2376164
Que pasa? What's this got to do with focusing? Nothing.

Wouldn't the focus and quality of the shot change if it went from light to dark; or dark to light? If the settings were set for a lighted scene or dark scene, and the scene changed, wouldn't the outcome desired also change?

CRE@TE wrote in post #2376120
You'd have to be careful and ensure the lighting has not changed when you recompose the shot.

The focus point and the exposure are independent things. If you pressed the shutter button half way down and held it before reframing, the exposure would be locked to that value before reframing. If you use evaluative metering without the half-press, the exposure would be the camera's best assessment of the levels of reflectance that strike the metering zones for the current framing...in other words, the correct exposure for the current framing!

The linkage in the default configuration of exposure and focus is a concession to the amateurs moving the dSLR from the P&S world. But most seasoned photographers use the Custom Function to divorce the two from one another, putting focus on a separate button. By doing this, you can pick your focus point in the scene, and separately decide the exposure point (if not using Evaluative but using Partial metering, for example) Aim and focus with button 1, press shutter button and hold exposure with half-press of shutter, then reframe and push the shutter button the rest of the way, to take the shot.

CRE@TE wrote in post #2376212
If you've bothered to read some of the other post about reframing the shot, you'd know what it has to do with my post.

I tend to shoot Manual, so my exposures don't change as they would in Program, Auto, Tv, Av, etc. As a result I forgot about the connection.