[AZ-Observing] Re: Fun with M1

That's why I (we) said rotate the eyepiece. You would in effect be rotating a 
single polarizer, would you not?

Jack

----- Original Message ----- 
From: "Tom Polakis" <tpolakis@xxxxxxx>
To: <az-observing@xxxxxxxxxxxxx>
Sent: Thursday, November 15, 2007 3:26 PM
Subject: [AZ-Observing] Re: Fun with M1


Jack,

Your moon filter is likely a double polarizer, which can indeed be set to 
allow almost no light transmission.  For the Crab Nebula, Paul suggests using 
a single polarizer.

Another object that shows polarization is the Egg Nebula (PK 80-6.1) in 
Cygnus.  It dims very strongly with a polarizer filter.

Tom


---- Jack Jones <Telescoper@xxxxxxx> wrote:
> You mean rotate the eyepiece with the filter set to max transmission? I 
> would
> think using the polarizing feature itself would just block it out entirely. 
> I
> have a polarizing Moon filter (Orion, $35) that goes from 1 to 40%
> transmission we can try next time on M1.
>
> Jack
>
>
> ----- Original Message ----- 
> From: <beevo1@xxxxxxx>
> To: <az-observing@xxxxxxxxxxxxx>
> Cc: "L Knauth" <Knauth@xxxxxxx>
> Sent: Thursday, November 15, 2007 11:08 AM
> Subject: [AZ-Observing] Re: Fun with M1
>
>
> Polarizing filter in the eyepiece and rotate the eyepiece?
>
> Beevo
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