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Re: bubbles

  • From: P3D Eric Goldstein <egoldste@xxxxxx>
  • Subject: Re: bubbles
  • Date: Fri, 18 Oct 1996 16:38:54 -0500
William Carter wrote:
> 
> The sharpest lens I've ever owned was an f/4.5, 300mm., (I forget). Not so
> hot at f/4.5, probably because of the bubbles in the glass near the rim o-)
> But, at f/5.6, it was very near the theoretical limit of resolution.


This is an extraordinary lens, first for the fact that it achieves near
theoretical limit of resolution performance at all! Second... that it
does so when closed down a mere 1/2 stop from wide open, especially as
performance at full aperture is "not so hot."

What's this lens like at f/11?!?!?!


Eric G.


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