With Moonlite having discontinued their manual focusers, and SI in some seeming disarray, what are we left with for upgrades and alternatives in aftermarket focusers, particuarly rack & pinion?
Chinese Crayfords can be of variable quality, but there seem few r&p focusers generally. Buying a scope with a good OE focuser seems more important than before, especially pre-owned.
Adapters & inner diameter sizes are limited as well, what you might want, might not fit your scope. Larger heavy optics or imaging kit also limits available choices. What might fit might flop.
GSO, JMI, S-W & Baader Steetrack are makes I see most. FT on longer than ever order now.