Re: [ATM] Advice on Solar scopes/observation

["tony gondola" <acgna@comcast.net>]

That's good to hear, given the low price I might give that a try.

Tony

PS: I'm glad I'm not the only one who likes square tubes.....


----- Original Message ----- 
From: "Nils Olof Carlin" <nilsolof.carlin@telia.com>
To: <atm@atmlist.net>
Sent: Saturday, June 17, 2006 8:22 AM
Subject: Re: [ATM] Advice on Solar scopes/observation


>
> Tony
>
>> I wonder, has anyone tried the Baader "diffraction limited" solar film
>> material sold by Astro Physics?
>>
> http://www.astro-physics.com/index.htm?products/accessories/solar_acc/astrosolar
>>
> As I recall, it was widely discussed on lists after its introduction a
> couple of years ago - and I think the consensus was it equalled or 
> surpassed
> most if not all "rigid" filters - and certainl compared to mylar filters.
> I personally find it very good (as well as cheap), and ideal to add to
> existing small telescopes - here is a 10" using most of a small sheet:
> http://web.telia.com/~u41105032/updating/Party.jpg
> Of course, you should always secure it against falling/blowing off (I use
> screws), and also protect the filter material from scratches or other 
> damage
> during storage - and replace it if you can detect many or large pinholes
> (since both sides are covered, pinholes let much less light through than
> they do on one-sided filters!).
>
> And don't forget to cap the finder!
>
> Nils Olof
>
>
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