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
$ 590.76
ready for shipping in 3-5
weeks
William Optics
Full-Frame Flattener/Reducer 0.72x
$ 971.25
ready for shipping in 3-5
weeks
William Optics
Flattener Flat73A for ZenithStar 73
$ 335.43
ready for shipping in 24
h
William Optics
Adjustable Flattener Reducer Flat73R for ZenithStar 73
$ 433.56
ready for shipping in 24
h
William Optics
Adjustable Flattener Reducer Flat7A
$ 861.11
ready for shipping in 24
h
William Optics
Flattner Flat61A for Z61
$ 335.43
ready for shipping in 24
h
William Optics
Adjustable Flattener Reducer Flat6AIII
$ 433.56
ready for shipping in 24
h
William Optics
Flattener Flat68III
Our price:
RRP:
$ 871.12
$ 831.07
ready for shipping in 24
h