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
$ 580.00
ready for shipping in 3-5
weeks
William Optics
Full-Frame Flattener/Reducer 0.72x
$ 960.00
ready for shipping in 3-5
weeks
William Optics
Flattener Flat73A for ZenithStar 73
$ 332.00
ready for shipping in 24
h
William Optics
Adjustable Flattener Reducer Flat73R for ZenithStar 73
$ 428.00
ready for shipping in 24
h
William Optics
Adjustable Flattener Reducer Flat7A
$ 850.00
ready for shipping in 24
h
William Optics
Flattner Flat61A for Z61
$ 332.00
ready for shipping in 24
h
William Optics
Flattener Flat68III
Our price:
RRP:
$ 860.00
$ 820.00
ready for shipping in 24
h
William Optics
Adjustable Flattener Reducer Flat6AIII
$ 428.00
ready for shipping in 24
h