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Old 28-05-2012, 07:51 PM
Dennis
Dazzled by the Cosmos.

Dennis is offline
 
Join Date: May 2005
Location: Brisbane
Posts: 11,828
Hi Suzy

Looks a nice job! Just check to make sure you used the Baader visual astro solar film, with an optical density of 5.

The other type of Baader film is the Baader astro photo film, with an optical density of only 3.8, which is designed to let a lot more light through, so that you can use high shutter speeds for photographing the Sun - it is completely not suited to visual use.

Under controlled conditions, with the Sun low on the horizon, I once had a very quick glance through my Vixen 4” refractor with a full aperture 3.8 film, just to centre the Sun in the FOV and it was very uncomfortable to the eye.

Cheers

Dennis
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