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I remember when US Sky and Telescope did a comparison of all solar filters in one issue, and rated them against various criteria.
Then several months later they reviewed the then new Baader filter. They gave it their top rating and said the previous review was now redundant, as Baader was better than all of them.
So, I eventually bought some from Claude in SA, and made a filter for my 80mm ED refractor, for which I already had the Thousand Oaks silvery glass solar filter. From the S&T review, I was expecting to see marvels. Boy, was I disappointed. There was nothing seen through the Baader filter that I couldn't see in the Thousand Oaks one. If anything, I thought the Thousand Oaks one was sharper.
I even later bought the Baader eyepiece filter for use with their solar filter. From memory, it gave the Baader solar filter the most minuscule of advantage over the Thousand Oaks one.
I'm now waiting for my sheet from Israel. Maybe I should make another filter for that 80mm to compare all three?
Cheers,
Renato
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