The telescope manufacturer William Optics offers very high-quality apochromatic and achromatic refractors which are very well suited to visual observation, and especially to astrophotography.
William Optics
Diagonal mirror Dura Bright 90° 2"
$ 248.00
ready for shipping in 24
h
William Optics
Dura Bright 1.25" 90° mirror star diagonal
$ 194.00
ready for shipping in 3-5
weeks