Nice to know. Thanks Bob.
Dario
----- Original Message -----
From: "Bob Shell" <[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Tuesday, September 06, 2005 4:31 PM
Subject: Re: Are most lenses optimised for short distance focusing?
On Tuesday, September 6, 2005, at 08:43 AM, Dario Bonazza wrote:
Your sentence is what the general theory claims. That's what you
usually read on photo books and magazines.
However, is it true? I don't think above statement to be so much
supported by evidence.
Yes, it is true. Most lenses are optimized for infinity. Lenses with
"floating elements" can be optimized through a specified focusing
range. Macro lenses are optimized depending on the intended use.
Bob (who has been involved in lens design in the past)
