Quote:
Originally Posted by joeman
Thanks for your responses.
Ryan - Thanks for that visualization. That give me something to think about.
Yes, I started to wonder if it is an intrinsic limitation of the equipment. Keeping your description in mind, there might be some "positions" that have less errors? like if the object being photographed is closer to the meridian?
Perhaps if I imbalance the weights a little might reduce the chance of the "jumps"? i.e. something for motors to work a "little" against...to dampen things? Perhaps?
Joe
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Yes there will be areas of the gear that suffer more from stiction etc than others. Also counterweight loading ( usually East heavy ) to hold constant load on one side of the gears is common practice in astrophotography. I’d still suggest that even with those things considered, you will struggle to get long subs with this setup without guiding and pretty good guiding at that. The short length subs really might be a more reliable way to go.
Ryan