High grade Schott optical glass is vat dyed for even color coating; then anti reflection coated for maximum light throughput; each filter has a metal filter cell and is threaded for use with 1.25 inch telescope eyepieces and filter threaded accessories
Handy color planetary telescope eyepiece filters help enhance your view of the planets and Moon; unveiling specific features and enabling you to discern more detail
The filter mount is precision manufactured from metal and is extremely thin to minimise shadowing and diffraction; the threads on both sides of the filter make it also possible to combine different filters
Utilizing the 2X Barlow Lens with a longer focal length eyepiece allows you to achieve the same high magnification while benefiting from a larger exit pupil; This configuration typically results in reduced eye strain and improved viewing comfort
Some telescopes will not focus properly without barlow to get infinity focus; Barlow lens will solve the problem; Allows connection of a SLR/DSLR or mirrorless camera to a telescope; works as a camera lens to capture images of the night time sky