Question about Optics
I am trying to make a telescope on my own. It is showing good results also. But the viewing area that I am getting is very small. Even to read a small board I have to pan my telescope.
I have used a double convex lens of 1000mm focal length with 100mm diameter, and a double concave lens of 200mm focal length for eye-piece.
I have fixed these two in sliding tubes and that's all.
Please advise me what I should do in order to get a wider viewing angle.
Thanks and Regards
All telescopes have small fields of view-- even what is called a "rich field scope" has only about 2 degrees of view. Most scopes only have about 1 degree of view.
The key component is a short tube and a fast mirror of F4.5 or faster.
Posted on Aug 04, 2011
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Posted on Jan 02, 2017
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