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How a two-point collimation technique can avoid mishaps and unwanted focal plane positioning in a Newtonian reflector.
How a two-point collimation technique can avoid mishaps and unwanted focal plane positioning in a Newtonian reflector.
Should You Get a Barlow?
Should You Get a Barlow?
Probably not! An opinionated look at the value a Barlow really adds, and why you probably don't need one.
Probably not! An opinionated look at the value a Barlow really adds, and why you probably don't need one.
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