Quote:
Originally Posted by Zuts
I also would be curious how a long focal length scope, say a C9.25, nearly 2.5 meters would go on a
EQ6, with good PE
Using an STL11000M with on axis guiding and adaptive optics
The EQ6 can certainly handle the load of a C9.25 plus one camera and with all that good SBIG gear to guide would there be any significant difference with a high range mount, say losmandy or tak?
By significant what, no difference, 1%, 10% ....
Paul
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Paul
Can't tell you how the EQ6 would compare to a Losmandy with the gear you mention.
But I can tell you how much weight a EQ6 can handle, the head mounted on a pier, for DSO imaging.
EQ6, none GoTO, will carry a 300mm dia. CardBoard Forma Tube 1650mm long with a 250mm F6 (1500mm) primary. Usual 8x50 finder GSO low profile 10:1 focuser with Skywatcher Focus Motor attached. An old 80mm Unitron Spotting Scope, converted, with 3xbarlow for future auto guiding. Tube balance weights. All held on a wooden saddle which is attached to the head by a standard 400mm long dovetail. Total weight with camera attached is 18.7kg. Couterweights are extra.
After drift aligning I was able to achieve 2.5min unguided exposures. Enlarging the image on a 17" Samsung 730Bf monitor to the point were the star images deteriorated I could just make out the start of tracking error in RA.
After 4 min it became obvious that one had to alter the handcontroll to get some control over the speed in RA. After dropping the handcontrol a couple of times in the dark I am down to 30sec. without getting any drift in RA.
Good excuse to either get my electronics mate to alter the thing, or update the EQ6 mount to a GoTO version, which is supposed to have higher torque stepper motors anyway.
Hope this goes somewhere near to answering your question.