How do you determine the magnification of a telescope?


Posted February 2nd, 2009 by admin 2 Comments »
telescope
mxtheif asked:


I have a 10 inch F/6.13 Schmidt Cassegrain with a 30 mm eye piece. Also a 16 inch Schmidt Cassegrain 30 mm eye piece. (Was not given the focal length).

I read the Focal Length is in mm, so is 6.13 the mm? How would I figure the focal length of the 16 inch telescope?

If you could please show step by step how you figured the magnification, it would be greatly appreciated! Thanks in advance.

How can I make a simple telescope that I can use for star-gazing?


Posted January 29th, 2009 by admin 4 Comments »
telescope
jomen_2ts asked:


I’m really interested in making and assembling my own telescope but I find it difficult to look for materials and a simple step by step procedure. I tried to surf the net but I found telescopes that are so hard to make and with so expensive materials. I hope you can give me simple guidelines or tips on how to make one. Thanks in advance.