Quote:
Originally Posted by alocky
Hi Greg - my take on that piece of advice was that since Andy already owns the camera (v. expensive) and mount (also expensive) he should use the Barlow (cheap) to see if (1) his mount is up to guiding at long focal length, and (2) what the image scale and local seeing delivers at around 1.2m focal length before buying a new imaging ota (v. expensive) that may require another mount (v expensive) or camera.
I don't think anyone was suggesting it as an alternative final solution!
Cheers
Andrew.
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Ah yes it would be a good test. I have done some APO galaxy imaging using a Tak 1.6Q extender on a TEC180. I imaged the Sombrero. It looked reasonably good but the subs were not very bright at all. In my case the mount held up well (Tak NJP mount) but that mount was maxed out by the refractor so results could be variable.
Greg.
Greg.