Archived posting to the Leica Users Group, 2000/07/05

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Subject: Re: [Leica] OT: (kind of) Voightlander 90mm?
From: Martin Howard <howard.390@osu.edu>
Date: Wed, 05 Jul 2000 15:29:47 -0400

Mark Rabiner jotted down the following:

> Ken Iisaka wrote:
>> <Snip> At f:8, many lenses are already diffraction-limited.
>> Leica optics are particularly so, performing at their best already at f:4 or
>> 5.6.
> 
> Ken! you sound like you know what you are talking about with this
> "diffraction-limited." term and i have a good Idea of what you are talking
> about I think but wish you'd clarify as I'm squinting hard to think about it!
> Mark Rabiner
> 

And when you squint hard, you see the world less clearly, right?
Same thing with lenses ;) ;) ;)

M.

- -- 
Martin Howard                 | Trying to determine human performance by
Visiting Scholar, CSEL, OSU   | experiments is nothing but the ritual of
email: howard.390@osu.edu     | The Ballet for the Gods of Invariance.
www: http://mvhoward.i.am/    +-------------------------------------------