The Bahtinov mask is a device used to focus small astronomical telescopes accurately. Although masks have long been used as focusing aids, the distinctive...

of the screen relative to the camera. In amateur astrophotography, a Bahtinov mask can be used to focus small astronomical telescopes accurately. Light...

The mask may also be used to check the figure of a mirror, as all the holes in the mask should each produce the same image. Bahtinov mask Carey mask Shack–Hartmann...

focusing aids such as the Bahtinov mask consist of multiple adjacent Ronchi transmission stop patterns. Inserting a Ronchi mask in the entrance aperture...

control of telescopes Bahtinov mask Binoculars Bioptic telescope Carey mask Dew shield Dynameter f-number First light Hartmann mask Keyhole problem Microscope...

and error that can often be encountered when attempting astrophotography. Astronomy portal Bahtinov mask Hartmann mask Carey mask website v t e v t e...

Focusing mask: A full aperture mask temporarily placed before the primary mirror to aid in focusing the telescope. Bahtinov mask Carey mask Hartmann mask Sub-aperture...

making Bahtinov mask Binoculars Carey mask Chinese Future Giant Telescope Depth of field Dipleidoscope GOTO (telescope array) Globe effect Hartmann mask History...

delivered to customers The kit included a custom tripod and mount, a Bahtinov mask and a protective cap. Later, Unistellar introduced two new telescopes...