Too_Many_Tools wrote in message
>Any idea why did it not catch on?
>Or do amateur astronomers like to freeze their butts off in the winter
>and have them chewed off in the summer? ;<)
here's one interesting website (shows some star and planet image tests with
and without such a film placed in front of the telescope) :
The author was not trying to keep mosquitoes out, was trying to keep dust
away from his primary, and used Baader Turbofilm in this test. He went
through 3 different filters, making them more and more carefully , and
documents how the Turbofilm affects his particular telescope .
Here's a more comprehensive laser interferometric test for several types of
Mylar films :
This test shows that a regular good quality Mylar film would reduce Strehl
from 100% to 57% .