1.25inch O-III Filter greatly enhances contrast during visual observation of gaseous and planetary nebulae in all sky conditions; astrophotographic 1.25inch filter allows high-contrast imaging even in areas with strong light pollution
Especially useful for large aperture telescopes through which the light of the Moon can be extremely overwhelming; allowing just for the Double Ionized Oxygen lines between 496nm to 501nm to pass through at 95 percent
Completely blocks virtually all other visible wavelengths of light so views of nebulas are optimized; increases contrast through selective filtration-Anti-reflection coated to prevent glaring and ghosting
Allow to attach Canon EOS Cameras to 1.25 inch telescope; FOR Camera EOS 5d; 5d Mark Ii 50d 60d 20d 30d 40d 350d 400d 450d 500d 550d 600d 1100d 1d; 1d Mkiii Digital Rebel T4i T3i T2i T1i Xt Xti Xsi Xs and all EOS SLR
Brand new CANON EOS Camera Adapter for telescope with standard 1.25inch Eyepiece Ports;easy and smooth for you to use