Optolong UV/IR Cut 1.25" FIlter Newtonian This ensures that virtually all

This ensures that virtually all the light collected by the telescope will reach the eyepiece without the diagonal affecting optical performance

Diameter - 100mm

The twist-lock eyepiece holder secures any 1

42 EYEPIECE SERIES Hyperion SPECIFICATIONS FOCAL LENGTH 10 mm APPARENT FIELD OF VIEW 68° EYE RELIEF (MM) 22 mm AR-COATING Phantom Coating® Group PARFOCAL EYEPIECES Yes BARREL SIZE (IN) 1¼"

ArmorTek® Ultra-hard

Optolong UV/IR Cut 1.25" FIlter Newtonian This ensures that virtually allOptolong UV IR Cut filter is designed for ultraviolet and infrared wavelength blocking to improve sharpness of the image as most of the optics are designed for the visible spectrum, because its very difficult to create a lens with the same focal point for the visible and IR spectrum. It is used on a digital camera and the video, which do not have an IR protection filter toward an image sensor or were remodeled. This is important because unfiltered CCD