[graphworlok (James)]

I've been imaging with an old 8" BATSC newtonian that's in pretty poor shape, or a 70's era Pentax telephoto lens, and i am thinking about treating myself to some quality optics



Camera is an unmodded EOS40D, mount is a non-synscan Skywatcher HEQ5 with a brain transplant to enable PC control



I'm after an apo refractor, price limit of about $1.5k - Rack and pinion focuser rather than helical, and shipped from Australia. After image quality rather than aperture



I'm unsure on balancing an APO doublet vs triplet vs cost..

I'm currently trying to decide between the following:


SHARPSTAR 76EDPH APO TRIPLET f/5.5 $1449
GRAN TURISMO 71 F/5.9 APO TRIPLET $1549


with other possible choices being the WO Zenithstar doublet APO's



Otherwise, any other recommendations or feedback?


Regards....