StarField Coma Corrector for f/3 - f/6 Newtonians - SF-CM-01 Tele Vue Eyeguard Extender TeleVue 19mm Panoptic Eyepiece -

TeleVue 19mm Panoptic Eyepiece - 1

your first set of batteries are included in the package

comfortable Lid Latches: Two

Finderscope

but could also damage expensive equipment

StarField Coma Corrector for f/3 - f/6 Newtonians - SF-CM-01 Tele Vue Eyeguard Extender TeleVue 19mm Panoptic Eyepiece -Newtonians inherit an optical distortion called Coma, where stars at the corners appear not round, but in more of a tadpole shape. The Starfield 2" Coma Corrector will provide a flat field image when used with a Newtonian telescope with a focal ratio of f 3 to f 6. The large 2" corrector will provide a wide field of illumination for even full frame DSLR's without vignetting. The Starfield Coma Corrector is not just for imaging; it will significantly