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Home > Reviews > Eyepieces > Other > A Eyepiece Calculator on Steroids

A Eyepiece Calculator on Steroids
By Samuel Roa - 4/29/2009

This tool is comprised ot two downloadable documents:

1) Excel worksheet. It has two spreadsheets, "calculations" (you enter data here) and "practical help" (step by step practical help).
2) Word document with theory behind the methods.

With these, you can accurately determine:

a) Eyepiece Focal Length (2 different methods)
a') Deviation from stated focal length for each method.
b) Scope Focal Length
c) Scope AFOV without eyepiece
d) Scope Mag. without eyepiece
e) Eyepiece AFOV
f) Eyepiece TFOV
g) Optical train Mag. at short distance (indoors)
h) Optical train Mag. at infinite (normal usage)

Download Section:
Excel file link:

Word file link:   Digg it   Reddit   Twitter   MySpace   Stumbleupon  

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