Quote:
Originally Posted by tornado33
The Keller correctors are great, and though expensive, result in a system thats still far cheaper than a RCOSS type scope and much faster photographically, opening the way for deep narrorband imaging, or just going very deep in LRGB in a reasonable amount of time.
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Quote:
Originally Posted by Satchmo
Alex , If you want a super-fast flat field scope you use a Phillip Keller flat field corrector which gives you F2.55 from an F3.5 mirror.
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Netwolf mentioned these to me reciently, but I missed the website. I now have it and will difinately be looking into these for further down the project.
How about I finish the drive first !