Astrophotographic 1.25'' filter allows high-contrast imaging even in areas with strong light pollution
Filter passes light at 500.7nm wavelength (O-III line) with a bandpass of 7nm for pleasing results
Very high 90% transmission of O-III light for sharp astrophotos
Filter made from high-grade glass with dichroic interference and antireflection coatings; size 1.25''. Metal filter cell construction.
Use with S-II and H-alpha extra-narrowband imaging filters for tricolor CCD astrophotography

Technical Details

Product Details

Package Dimensions
Width : 3.1 inch
Height : 0.9 inch
Length : 3.1 inch

Shipping Weight: 0 ounce (View shipping rates and policies)

ASIN : B0013D9OC8