Kenko Astrophotography ASTRO LPR Type 1 - 77mm Filter

Transmits only the wavelengths necessary for astrophotography.
Increases contrast and improves visibility.
LPR stands for Light Pollution Resistance. This means light pollution suppression.

I attached it to my lens, but in the end, I never took out the lens itself, which weighs over 1kg. (Both the lens and filter were stored away unused.)

Instruction manual, case, and original box are included.
Will be shipped via Letterpack Light.

For more details, please see here:
https://www.kenko-tokina.co.jp/optics/tele_scope/eyepiece/4961607377697.html