ARCO 3"
ARCO 3" is the larger version of our ARC second resolution rOtator that, thanks to its incredible resolution of 1 arc second per step, is the most precise camera rotator and field de-rotator! The 3” version of ARCO has a thickness of only 23mm and a free aperture of 76.3mm. When used together with an equatorially mounted telescope, ARCO allows you to rotate the camera without the need to touch the telescope.