Bahtinov Focus Mask - Meade SCT 56° It was the first of

It was the first of three Action Packs designed in collaboration with JPL

dual-speed

Precision stepper motor for precise GOTO and accurate tracking

25” Schmidt-Cassegrain Built 2006 or later Yes 9

and then thrill to well resolved celestial views when twilight fades

Bahtinov Focus Mask - Meade SCT 56° It was the first ofBahtinov focus masks provide an ingenious way to easily focus your DSLR camera, webcam or CCD camera for astrophotography. The method is simple, very intuitive, and the device has universally been named after the inventor, Pavel Bahtinov. The mask works by creating a group of three diffraction spikes. Two of these generate a cross pattern, and the 3rd moves with your focus. You know you have achieved perfect focus when the 3rd diffraction spike is