|
If I was in the market for another imaging newtonian I would be seriously considering one of these. I've previously owned a GSO 200mm f4 imaging newtonian (steel tube) and that was very good (and I was able to achieve focus with both a Baader Type 2 MPCC and a Televue Paracorr coma corrector). I think the carbon tube, upgraded focuser and solid spider would make this new Testar offering very compelling.
Collimation is more challenging at f4 than f5 however - which is what i'm using now for my larger scope - a Skywatcher 200PDS with upgraded solid spider, primary mirror ring and a Moonlite large format focuser with ultra high resolution stepper. All up those upgrades were considerably more expensive than the new GSO 200mm scope from Testar (and its much heavier than the GSO too), so if I was doing it all again i'd be very tempted by the GSO.
|