|
I have a very old EQ3 with RA motor only. Tracks very well with good polar alignment for 135mm lens, even 4 and 8 min subs unguided. Haven't tried longer, but have no reason to believe there'd be an issue with your 200mm focal length, particularly if you're using shorter subs.
I also got a cheap EQ2 with RA drive, thinking it would be lighter for travel/camping etc as the EQ3 tripod and head can take up some room (not so much a weight issue). I don't think the EQ2 has the same range of movement, so haven't been using it.
So I guess my point is just check that your EQ2 with motor has enough range in RA for you. I would think it's fine for up to 200mm unguided. If not, EQ3 would smash it.
|