GSO ELLIPTICAL SECONDARY MIRROR 62.5mm William Optics Dual Alt-Az/Equatorial configuration

Dual Alt-Az/Equatorial configuration

2600 (excluding Duo series):

especially if the object is away from the celestial pole and the optical tube is short

so that the ideal focus point doesn't change too much from the original design

extension rings and filter holders that are available in the UFC system

GSO ELLIPTICAL SECONDARY MIRROR 62.5mm William Optics Dual Alt-Az/Equatorial configurationThe GSO 62. 5mm elliptical secondary mirror is ideal for amateur telescope makers. GSO secondary mirrors are offered in sizes from 62. 5 88mm to suit a variety of primary mirrors. Well known for their excellent quality, GSO mirrors are some of the best available in their price range. The secondary mirror does not come with a holder, but can be glued in place. The mirrors are made from BK 7 glass with highly reflective aluminium coating (typically 93%)