Archived posting to the Leica Users Group, 1997/08/19
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On 18 Aug 97 at 23:56, George Huczek wrote:
> At 08:25 PM 18/08/97 -0400, you wrote:
> >
> >Now in my investigation of circular polaroid filters, I have discovered the
> >Kaesemann circular polaroid filters. They are even more expensive than the
> >normal B+W filers. Does anyone know the advantages of the Kaesemann
> >polaroid filters?
> >
> In addition to Jim's excellent posting, I can add that the B&W circular
> polarizers delaminate. This becomes noticeable first near the ring, and
> then gradually migrates inwards.
All polarizers delaminate over time, but the Kaesemann does not, as
it is environmentally sealed (the pol foil just deteriorates because
of humidity).
You will hardly find any old & good polarizer, unless it has been
restored with new foil.
- --
Bye,
Willem-Jan Markerink
The desire to understand
is sometimes far less intelligent than
the inability to understand
<w.j.markerink@a1.nl>
[note: 'a-one' & 'en-el'!]