Chuck Norcutt wrote:
> Nearly my own setup too... f/10 Celestron 8 with OM-1 and off-axis
> guider. Too damned hard. That's why I gave it up. Deep sky
> astrophotography that is. I still have the OM-1 and Celestron 8 with
> 1970's technology variable frequency oscillator for the clock drive.
Ah, my mistake. The 2080 optics are f/10 as well.
My biggest difficulty was trying to achieve sharp focus when doing deep
sky work. Until I purchased a Spectra SureSharp, I rarely had any
images that were usable. The SureSharp was a nifty device using a Ronchi
screen that mounted over your camera's t-ring. You would bring a fairly
bright star into view and focus viewing through the SureSharp until a
particular pattern was seen. Then you would just replace the SureSharp
with your camera body and slew the telescope to the position to take
your image.
Richard
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