exposure?

i have a canon rebel xt, how can i control exposure? what lense can i get for

real good studio portrait look with narrow dof for the least possible?

<i>how can i control exposure?</i><p>Most photographers like to use a combination of aperture and shutter speed. However, if your question is specific to the portrait studio environment, then you'll have to study up on studio photography. You can always start <a href="http://www.photo.net/learn/studio/primer"> here.</a><p>

<i>what lense can i get for real good studio portrait look with narrow dof for the least possible?

</i><p>The EF 50mm f1.8 is the 'cheapest' available Canon lens and performs very nicely from f2.8 upwards.

"how can i control exposure?" ... dials and buttons seem to be the preferred method. For small DOF, you need a lens with a large aperture. The 50/1.8 is a good and inexpensive choice.

<a href="http://www.photographybay.com/2007/03/10/how-to-take-better-photos/">How to Take Better Photos</a>.

<p>

Cheers!

The parameters for lack of DoF in portraiture .... large aperture [f/1.8] longer focal length and separation of subject from background.

It is a 'juggling act' and the 50mm f/1.8 or f/1.4 if you can get one is a good compromise.

 

What I look for is lack of distortion of the subject's body from the camera being too close, so the 50mm is barely adequate and a 90mm would be better. But the trouble with the longer focal length is that it probably has a smaller maximum aperture f/4.5 or so which gives you more DoF.

 

But if you organise a plain evenly lit background it is so easy to put it out of focus in editing.