I guess this sounds kind of stupid.. but I just bought a canon rebel 2000 with a 20-80 mm lens.. My question is when using auto focus does the whole lens focus (as in zooming) or just the end.. I mean do I need to zoom in on my own or should the whole lens turn.?

-- Kelley Harper (naynay33@bellsouth.net), April 21, 2002

Answers

Focus and Zoom are totally different functions. Focusing lets you get the sharpest possible image, zooming allows you to frame a closer view of the target image. When you are using Auto Focus you will need to zoom in and out manually if you need to.

-- Samir Singh (samir_singh64@yahoo.com), April 21, 2002.

and don't worry kelley that you are asking a stupid question. there are many who doesn't know anything about photography and buy a (SLR) camera and learn a lot through books and net. so no question is stupid.

-- sajeev (chack74@yahoo.co.in), April 22, 2002.

Zooming on these cameras is not like zooming on a point and shoot-- which zooms at the touch of a button.

When you use autofocus, only the end of the lens will move.

-- Preston Merchant (merchant@speakeasy.org), April 22, 2002.

When you use autofocus, only the end of the lens will move.

on a non-ring USM lens.

But focussing is done with a touch button - the shutter button or * button just like a point and shoot zoom. Press the button until you get the sharpest possible images in the viewfinder.

-- sajeev (chack74@yahoo.co.in), April 22, 2002.