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Old 08-01-2010, 11:28 PM
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Robh (Rob)
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Join Date: Feb 2009
Location: Blue Mountains, Australia
Posts: 1,338
Quote:
Originally Posted by ianrich77 View Post
I checked my manual and it states that the maximum viewing magnification of my telescope is 330x without image blurring or distortion.
Manufacturers of telescopes generally quote theoretical values for magnification and resolution as if in a vacuum. The specs can be used to compare the capabilities of various scopes but it can also give the impression the scopes are better than they really are. In practice, these values are rarely (or perhaps never) attainable. Alexander is right in saying that outside factors will essentially limit your scope's capabilities. Seeing will limit sharp viewing to below 250x most of the time, regardless of the size of your scope. Rarely will you be able to exceed this and actually gain clearer detail. Skyglow and transparency will also affect your limiting magnitude (the dimmest objects you can see).
However, having said this, there are many exciting and wonderful objects to observe with your scope!

Regards, Rob.

Last edited by Robh; 08-01-2010 at 11:39 PM.
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