Is my 75mm hand mirror suitable for a dobsonian telescope?
Posted February 15th, 2010 by admin 3 Comments »
Altair asked:
I have seen wesites on how to build your own dobsonian telescope. I know that the primary mirrors of most dobsonian telescopes have a focal length ranging from 1000mm to 1200mm. But I do not know whether my hand mirror fits into this catagory. I don’t mind having a telescope with a small aperture.
I have seen wesites on how to build your own dobsonian telescope. I know that the primary mirrors of most dobsonian telescopes have a focal length ranging from 1000mm to 1200mm. But I do not know whether my hand mirror fits into this catagory. I don’t mind having a telescope with a small aperture.