Archived posting to the Leica Users Group, 1999/04/24

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Subject: RE: [Leica] polarizers
From: "Kotsinadelis, Peter (Peter)" <peterk@lucent.com>
Date: Sat, 24 Apr 1999 08:48:10 -0700

Eric is correct.  You may consider not polarizing the photo fully.  IOW,
turn the polarizer so that it only polarizes partially.  This can help the
over stauration in the corners, espeically with Blue skies.  

PK

> ----------
> From: 	Eric Welch[SMTP:ewelch@ponyexpress.net]
> Reply To: 	leica-users@mejac.palo-alto.ca.us
> Sent: 	Saturday, April 24, 1999 6:24 AM
> To: 	leica-users@mejac.palo-alto.ca.us
> Subject: 	Re: [Leica] polarizers
> 
> At 11:40 PM 4/22/99 -0700, you wrote:
> > Any wide angle lens that
> >covers an angle greater than 90 degrees may create a problem.
> 
> Yes, he's right. And on top of that, when you get into very wide lenses, 
> like the 19 or wider, light travels so much farther through glass at the 
> corners than in the center that distortion occurs. Thus the reason why 
> Leica won't put filter threads on the front of lenses wider than 21.
> 
> Eric Welch
> St. Joseph, MO
> http://www.ponyexpress.net/~ewelch
> 
> Canadian DOS prompt: EH?\>
>