Hi all,
I keep drooling over these at Testar.
https://www.testar.com.au/collections/gso-newtonian
Basically standard GSO newtonian optics (Which are not bad) in a carbon tube with upgraded CNC machined Spider, upgraded Primary Cell, upsized secondary, linear bearing Crayford focuser (The Stela Lira version has a rack and pinion focuser) and CNC machined rings and losmandy plate.
I reckon the added extras come to about a grand.
Carbon Tube is about 250.00 on ali express
A 2" RP focuser can be got from Ali for about 280.00 (I got a nice one for my 6" RC there).
The machined rings, spider and Primary Cell probably come in at around 250.00.
If anyone has the 6 or 8 inch versions, I'd be interested to know what your experience is like for imaging with them. I know from the Web that people have had bad experiences with the 4.5" one trying to achieve focus with the recommended Coma Corrector.
Cheers,
Hugh