Hi, I will be taking possession of a TEC triplet Apo 250 mm refractor in a year or a year and half's time.
I know that there is a wide range of opinions and solutions regarding guide scope size and f/l but I am looking for
some recommendations. Can anyone recommend: 1. An aperture and focal length for a guide scope, and
2. A good guide camera, that would work with such a long focal length (2200 mm) and with its 250mm aperture?
Thank you for any feedback you can give me on this. I asked Yuri Petronin, but he just said that any guide scope
would be good - up to 4". I'm hoping not to have to put a 4" scope on the 10" scope to guide with!! So your
recommendations would be very valuable to me. Thank you for your time and your wisdom.