1.25" Standard Mirror Diagonal

An all metal mirror type 1.25" diagonal that represents excellent value-for-money. With a black anodized finish, this unit will fit all standard 1.25" telescope drawtubes and will accept standard 1.25" eyepieces. Upgrading to a mirror diagonal from a prism type usually results in improved optical performance, as chromatic aberration can be reduced, while light transmission may be increased. The barrel is threaded for filters.