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The SkyRover on paper seems hard to beat.
A DSLR is not going to compete with an SBIG 8300.
Petsval designs seem to be a great imaging design.
70mm is still a reasonable aperture for the price. 61mm is getting pretty small. F4.5 at 61mm versus F5 at 70mm should be faster with the larger aperture.
Greg.
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