Re: Magnification needed to split tight doubles

Chris L Peterson wrote:
Why? The image at the focal plane is what it is, and has nothing to do
with magnification. As Brian pointed out, the magnification required
depends on your eyes, not on your optics (assuming the optics is capable
of resolving the pair at all).

There is a secondary issue--a poorer scope will produce a more inflated
PSF. Two of these close together will be harder to separate at a given
magnification than those in a better scope.

Essentially, it's the same reason why you'll need lower magnification
with a larger-aperture scope than with a smaller-aperture one, too--
provided seeing cooperates.

--
Brian Tung <brian@xxxxxxx>
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