Bahtinov Masks

Struggling to obtain precise focus on your telescope? Then look no further. These RVO premium bahtinov focusing masks are the ideal accessory to achieve perfect focus. Made from thick, durable plastic, these masks are rigid and robust yet lightweight.

Struggling to obtain precise focus on your telescope? Then look no further. These RVO advanced bahtinov focusing masks are the ideal accessory to achieve perfect focus.

Brand new William Optics bahtinov focusing masks made of acrylic sheet which maximises light transmission for ease of use. The new Optical acrylic sheet offers 92% of light transmission that gave you the highest and brightest diffraction Spikes for Focusing !

Brand new William Optics bahtinov focusing masks made of acrylic sheet which maximises light transmission for ease of use. The new Optical acrylic sheet offers 92% of light transmission that gave you the highest and brightest diffraction Spikes for Focusing !

Recently, the Bahtinov-style mask has overtaken the Hartmann mask in popularity for the reason that the Bahtinov diffraction pattern's unique display provides a more accurate guide to determining the optimum focus point.

Brand new William Optics bahtinov focusing masks made of acrylic sheet which maximises light transmission for ease of use. The new Optical acrylic sheet offers 92% of light transmission that gave you the highest and brightest diffraction Spikes for Focusing !

Brand new William Optics innovative patented bahtinov cover for WO GT 71, ZS 73 & Star 71 II. These caps fit over the end of the telescope for protection and storage. Then simply unscrew the very end of the cap for a high quality bahtinov mask for precise focusing!

Brand new William Optics innovative patented bahtinov cover. These caps fit over the end of the telescope for protection and storage. Then simply unscrew the very end of the cap for a high quality bahtinov mask for precise focusing!