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
rotator Adaptors for M63 focusers
$ 166.00
ready for shipping in 24
h
William Optics
Expandable 1:10 Micro gear for Synta focuser
$ 159.00
ready for shipping in 24
h
William Optics
rotator Rotolock Visual Back 3.5
$ 310.00
ready for shipping in 3-5
weeks
William Optics
rotator Rotolock Visual Back 3.5
$ 310.00
ready for shipping in 3-5
weeks
William Optics
Rotator M92
$ 288.00
ready for shipping in 3-5
weeks
William Optics
rotator Rotolock Visual Back 3.5
$ 310.00
ready for shipping in 3-5
weeks