I’m experimenting (so far, only one night!) with a WO Z61+flattener on my Star Adventurer. It’s pretty lightweight yet well built, and relatively inexpensive compared to many alternatives.
Initial results are promising although I need to work on the balance situation, which will hopefully help it guide better. Guiding being necessary because the scope is f/5.9.
I also use a Canon 70-200 f/4, which is versatile but no match for a good prime. On my (so far only one) aforementioned experiment, I used the 70-200 as the guide scope...so the SA would have been pretty close to its payload limit.
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