Re: [ATM] SUN FILTERS

["Bruce MacDonald" <brumac@gmail.com>]

Don,
Since your Baader filter is just your Thousand Oaks filter w/ a film
replacement, what do you suppose accounts for the difference in image
quality?

I made myself a full-aperture filter for my 150mm Newt using Thousand
Oaks film -- no glass.  It has worked well, and I've never had any
trouble with pinholes etc.  My imaging "system" is very
unsophisticated -- just a webcam with an adapter.  I get solar images
as sharp as my lunar ones, if you take into account that I've never
had great seeing during the day.

I've just ordered half a square metre of Baader film to make filters
for a few other scopes.  What difference can I expect other than the
colour?  I'm thinking now that if I have any left over Baader film
I'll make a 2nd 150mm filter so I can do the direct comparison
routine.

Cheers,
--BM

On 10/15/06, Don Clement <don_clement@charter.net> wrote:
> I also use a Baader filter. Used to use a Thousand Oaks filter, I believe
> inconel on glass, but the Baader is far better that the TO filter. In fact I
> removed the TO filter from it's aluminum mounting ring and replaced it with
> the Baader material. The result was much better images of the sun with 5"
> F10 MakCass.
>
>
> Don Clement
> Running Springs, California
> _______________________________________________
> ATM mailing list http://www.atmlist.net/
>


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