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Post by Paulie pchris00 on Nov 10, 2014 17:36:52 GMT -6
Been meaning to ask about the difference in detail between Baader film and glass solar filters. I made a couple of Baader film (I forget the brand, but it was a solar film) for the Venus transit, and even keeping it protected when not in use, it wasn't too long after that I noticed pinholes in the film. I've been thinking about upgrading to glass. Do you think I'd be better off going with glass, or make another Baader film filter? I miss solar observing.
"Just a boy, just an ordinary boy, but he was looking to the sky." -Vanessa Carlton
Post by Chicago Astronomer Joe on Nov 11, 2014 19:37:35 GMT -6
I use three types of solar filters....
The Orion Glass full aperture filter displays the solar disk in it's natural white and does a good job...but I find it a bit "Soft" in the imaging. Visually..it's performs well. The glass has a tendency to lose it's coating in pits here and there. I have dotted them with black felt tip marker as recommended.
The Full aperture Baader film filter also displays the solar disk in it's natural white and is a bit sharper both visually and in imaging. I use Full aperture in both the C11 SCT and the C102mm Refractor. At times, I use a yellow eyepiece filter to lend the disk the expected color the public expects...and it does impar a better contrast, bringing out Sunspot details a bit more.
I also use the Seymour Full aperture for the C102 very infrequently , but it is the softest of the three and it lends an unnatural orangy tint to the solar disk.