I have final managed to get my hands on some solar filter film to make a filter for my 8 inch (203mm) Dob. A lot of the literature I have gone though suggests reducing your aperture, but non provided a ratio by witch to reduce it?
I mad a couple of lunar reducers to take my scope to down to a 114mm aperture for full moon viewing (See Image). I was going to uses the template to make the solar one but again I am not sure of the aperture needed.
The film in question is Thousand Oaks Optical SolarLite Solar Filter Film (ND 5).
Any advice is appreciated
Edited by NerfWrangler, 16 July 2020 - 07:45 AM.