Question about Tasco Specialty 301051N (100 x 50mm) Telescope
The Barlow lens goes between the diagonal and an eyepiece. It doubles (2x) the magnification of the eyepiece used.It does this by halving the f/ ratio of the scope.
Eyepiece alone gives 35x; barlow with eyepiece =70x.
Note: this scope comes with an erecting eyepiece and is NOT suitable for atronomy use (other than perhaps the moon)
Posted on Mar 19, 2011
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Posted on Jan 02, 2017
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