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Ppec?
I'm wondering how much effect this would have for unguided exposures. I currently have an HEQ5 and guiding with an eyepiece is fine although a major pita. Unguided 30 second shots, maybe 1 in 4 (600mm/dslr) have tracked nicely. 1 minute shots, perhaps 1 in 5 are good. I'll check my drift alignment, but I would have assumed that if my alignment was off, then all the pics would be slightly out. If I can't do better than this, then it's time for a new mount and one with encoders and PPEC sounds like a good idea to me so I guess my question is, after some training runs to get PPEC working, how much difference would it make to an unguided photo? Could I reasonably expect to get 2 minute exposures with a 600 - 800mm scope?
The 'affordable to me' contenders seem to be the AZ EQ6/Orion Atlas version and the new AZ EQ5. Or would I be better off paying a little more for a Losmandy GM8? I guess autoguiding is on the cards but if I can keep things really simple and avoid it, I would.
Thanks - J.
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