Quote:
Originally Posted by Don Pensack
So I advise adding the Celestron f/6.3 focal reducer to the scope.
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The reducer/corrector flattens the field and improves star images across the entire field.
It allows a widest-field to be accomplished with smaller and less expensive 1.25" eyepieces.
It doesn't overweight the back of the scope and require a counterweight.
It's removable for use at f/10 if desired--2 scopes in one!
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Thanks for this, I was actually going to ask about a focal reducer in a new thread, what are the downsides? Presumably there is less back-focus? Does this also affect the eye-relief? Does focussing become more difficult (the travel on the focus knob is a lot less than I am used to, which makes it a bit more fiddly)?
Everard