[Leica] RE: Re: M3s and polarizing filters

[Jim Brick <jimbrick@photoaccess.com>]

Peter,

Sorry, that's not correct. A "Kaesemann" Polarizer is simply a more durable
polarizer. Select foils, specially prepared optical glass, hermetically
sealed. But it is still a regular old polarizer. All of my Heliopan
polarizers are "not" Kaesemann polarizers and they "all"  have numbers
around the rim. This is a Heliopan standard feature.

I do have a Kaesemann  polarizer, in 82mm. It has no numbers around the rim.

Jim


At 03:27 PM 2/17/99 -0800, you wrote:
>Hi Jim,
>
>I could be wrong, but I believe the numbering is found on what are called
>Kassemann polarizers.  Standard polarisers do no have the numbers on the
>ring.  Kasseman are particularly useful for adjusting the degree of
>polarization for Rangefinders and TLRs, since you can't see through the
>taking lens to judge the degree of polarization.  I have one I use on my
>Rollei TLR.  Marvelous filter for a marvelous camera.
>
>Peter K
>
>-----Original Message-----
>From: Jim Brick [mailto:jimbrick@photoaccess.com]
>Sent: Wednesday, February 17, 1999 2:59 PM
>To: leica-users@mejac.palo-alto.ca.us
>Subject: [Leica] Re: M3s and polarizing filters 
>
>
>Heliopan polarizing filters have numbers around the filter rim. Look
>through the filter and turn it for the desired effect. Note the number on
>top. Screw it on to your lens and turn it until that number is on top. I
>have two of each size polarizing filters. One on the camera, the other in
>my vest pocket. I look through the second filter to get the desired effect,
>noting the number. I then set the filter that is on my lens to this number.
>
>Jim
>
>
>At 02:50 PM 2/17/99 -0800, you wrote:
>>Unlike an SLR where wysiwyg rules with polarizing filters, how does one
>>visually calibrate the varying effects of a polarizing filter with a
>>non-SLR camera?
>>
>>jh