Most fast teles are designed to be optimum at wide f-stops. Stopping
down to f/8 usually will only improve the edge very slighty - unless we
need more depth of field. At some circumstances f/8 would result in a
shaky/blurry picture. Shooting at f/8 is not a complete madness, of
course, but most of the time I use my 180/2.8 at f2.8-5.6.. I just
remembered that even my F300/4.5 is superb already at f/5.6!

-----Original Message-----
From: Kostas Kavoussanakis [mailto:[EMAIL PROTECTED] 
Sent: Thursday, February 26, 2004 4:41 PM
To: [EMAIL PROTECTED]
Subject: Re: "late" performance

On Wed, 25 Feb 2004 [EMAIL PROTECTED] wrote:

> are not so good stopped down past f/5.6 or so.  Of course shooting
> a 200/2.0 at f/8 is madness!

Why?

Kostas (genuine question)


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