MSI K9N PLATINUM AM2 SERIES

[9-inch]

Take a look of it here:
http://it-review.net/index.php?option=com_content&task=view&id=485&Itemid=105

 

[Action_Man]

 

[gr8mikey]

To determine the magnification of an optical telescope, you divide the focal length of the eyepiece into the focal lenght of the primary objective.

magnification = f lengh objective / f length eyepiece

for example an 1000mm objective with a 20mm eyepiece would yield a magnification of 50X.