A long focus lens is one that is longer than the usual normal focal length for 
the format, but still of standard design. A 50mm for a 35mm camera would be a 
long focus lens on an *istD

A telephoto is a lens that is physically shorter than it focal length. That is 
accomplished by building in what is basically a teleconverter (or a barlow 
lens).

I will add two more definitions:
A wide-Angle is a lens that is shorter than the usual normal focal length for 
the format.

A retro-focus lens is a WA that is physically longer than its focal length (a 
reversed telephoto)

graywolf
http://www.graywolfphoto.com
"Idiot Proof" <==> "Expert Proof"
-----------------------------------


Shel Belinkoff wrote:
Could someone be kind enough to remind me what the diff is between a long
focus and a telephoto lens.  Thanks!


Shel




--
No virus found in this outgoing message.
Checked by AVG Anti-Virus.
Version: 7.0.323 / Virus Database: 267.6.6 - Release Date: 6/8/2005

Reply via email to