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
Flat6A III Special Edition FLT91
$ 592.29
ready for shipping in 3-5
weeks
William Optics
Full-Frame Flattener/Reducer 0.72x
$ 973.77
ready for shipping in 3-5
weeks
William Optics
Flattener Flat73A for ZenithStar 73
$ 336.30
ready for shipping in 24
h
William Optics
Adjustable Flattener Reducer Flat73R for ZenithStar 73
$ 433.68
ready for shipping in 24
h
William Optics
Adjustable Flattener Reducer Flat7A
$ 863.34
ready for shipping in 24
h
William Optics
Flattner Flat61A for Z61
$ 336.30
ready for shipping in 24
h
William Optics
Adjustable Flattener Reducer Flat6AIII
$ 433.68
ready for shipping in 24
h
William Optics
Flattener Flat68III
Our price:
RRP:
$ 873.38
$ 833.22
ready for shipping in 24
h