Question for Asbytec:
I'm thinking of getting the ES 10". I spoke with them and they will upgrade to a 2 speed focuser for $71 extra prior to shipping. Do you think it is needed? worth it? or is the stock focuser easy to use? Also do you think the 8 " is sufficient or think the 10 " would be better. What is your overall impression of the Explore Scientific Solid tube with the big semicircular bearings?
I was talking previously and someone else mentioned the aesthetic differences between the ES 10 and the AD 10. After looking at some more pictures of the
ES I'm starting to think it's a sexy looking scope. Previously I was hooked on the sleek black apertura with the silver bearings but I'm thinking the Explore Scientific may have it beat. Just another thought to confuse my choice. Thanks again all.
I am sorry for missing your question earlier. I'd say the dual speed focuser is nice enough to consider getting it. I am (or was until the recent price hike). The focuser itself is fine without it, but being accustomed to a longer focal length MCT and fine focusing, I find focusing is a bit finicky to my touch. I manage so its not necessary, but it is nice to have. Worth it? At $71 it was worth considering. At 1.5x that price and additional shipping cost to the Philippines, I may have to pass and refine my touch of the stock focuser. I never used a fine focuser in my previous Dobs, so it may just be a matter of learning to focus, again.
I'd recommend either the 8 or the 10", but might sway you toward the 10". In my view and in my experience, I appreciate the larger alt bearings for holding the scope in position and much easier and assured balance. I had trouble with my previous Dob with smooth bearings and a friction adjustment. I never could find a sweet spot between friction and smooth movement with adequate balance. I would hope all Dobs would come with adequate alt bearings, large ones if necessary. IMO, it's just the way to go. And yes, that are sexy.
As for your question earlier, I added a RACI and a fan with a power bank power supply. That's it. I recommend a fan. I also modded the diagonal with a washer for easier collimation and put a Sharpie to the edge of the diagonal mirror to dampen reflection of stray light in my area - you know how neighbors are.
Edited by Asbytec, 10 March 2019 - 07:05 PM.