[LargeFormat] A simple Yellow Filter

Sun Dec 30 10:46:03 2001

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There seems to be a lot of lens talk on F32, so I will add a little.

In the old days before Apo lenses, photographers wanted to take nice
sharp photos. But, they did not have all the good stuff that we have
now.

The Yellow filter --------

So they would use a yellow filter to make the lens sharp like an Apo
lens. 

And, just when you thought it was just to make the clouds show in a
photograph.

Does any one know why -- the yellow filter makes the older lens extra
sharp? 

This my cause some of you to think about older lenses.

I have enjoyed learning about older lenses. 

The old guys that designed them and the old guys that used them ----
don't seem to me --- to be as backward as some modern photographers may
believe.

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<HTML>
<P>                                  
Jay Allen
<p>Come see my <A
HREF="http://home.talkcity.com/EaselSt/clock-doc/index.htm">home
page</A>.
or go to:  escape.to/jays

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