best 90mm refractor under $2,000?
Posted 14 November 2012 - 02:45 PM
Optically these AT APO's are as good as anything I have used. In fact I prefer my AT106 to the TAK 102 and the TV 102, which are the only other two 4" refractors I have had a chance to use a lot.
Posted 14 November 2012 - 03:18 PM
Thanks for clearing that up, Mark. Seems there's some conflicting information around on this. I was seeing some older info last night that was leading me to think it was the TMB design. Apparently at that time, TMB/Markus thought it was! This post seems to sum it up pretty well.
Thanks for the link Judd. As for the differences between the 80/480 and the 80/600, it's all a matter of preferences. There are more things to mention but to keep it short, the 480 offers a faster focal ratio and wider fields of view. Wider fields mean capturing more expanse of the sky and more flexibility in framing your target(s). The 600 offers a longer focal length. That lends itself to higher magnifications with a given eyepiece and more depth of focus. More depth of focus leads to a bit more ease in focusing your target. Optically, both are superb and one could not go wrong with either.
Posted 14 November 2012 - 04:33 PM
Is your Tak an FS or TSA?
Posted 14 November 2012 - 04:53 PM
Do you belong to the Texas Astronomical Society (TAS)?
Posted 14 November 2012 - 07:03 PM
Posted 14 November 2012 - 07:09 PM
Posted 14 November 2012 - 07:50 PM
Posted 14 November 2012 - 08:46 PM
Posted 16 November 2012 - 12:18 AM
Not only that but there is a sale going on with a 90mm Raptor right now. Great scope for well under 2K.
I love the views through my Raptor and find f/7 perfect for visual. I wish I'd got $300 off mine though!