Quote:
Originally Posted by BlakPhoenix
The weight advantage is huge. I own a RST-135E and it's amazing how much more I get out now with the lighter mount. Saying that.... Harmonic drive PE is very different to worm drives. It's always changing based on the weight and angle th mount is at (based on torque on drive in current orientation), so can not use PEC/PPEC like you can with EQ6, etc. This means the true error is MUCH worse than what you may be used to. Not saying it can't be overcome, but don't compare error bars of harmonic drives to more traditional drives.
The biggest thing with these mounts is you need very fast guiding exposures to keep on top of the PE as it can move quite fast at some parts of the sky so you need good SNR for your guide cam so it can keep on top of it.
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Thanks for the info.
I think this shows a good gap in the market, that a product like the SkyWatcher AZ-GTi hints towards.
I'd love something a little heavier/beefier than the AZ-GTI but with the accuracy of say the EQ6-R in a package not much bigger than the AZ-GTI. Of course, I'd be willing to sacrifice mount weight capacity, and maybe image with 6-7kg of equipment.
That would drive a perfect travel and wide-field setup
This AM5 ticks a lot of boxes, but it might be exactly what I'm after, personally. We'll see.