CH4 8nm 1.25 inch Filter E-series

Player One

CH4 Methane filter: CWL 889 nm, 8 nm bandwidth
Threaded 1.25″ filter: M28.5×0.6
Transmittance ≈ 90%, OD 4 blocking
Slim 7.5 mm frame; 1.85 mm glass

R 2 990.00

In Stock

The Player One CH4 8 nm 1.25″ Filter (E-Series) is a high-performance narrowband methane filter, optimized for CMOS/CCD planetary and nebula imaging. The E-Series offers enhanced multi-layer coating and superior optical substrate for increased contrast and durability.

Key Features

Size: 1.25″; Thread: M28.5x0.6
CWL: 889 nm; Bandwidth: 8 nm
Transmittance: ≈ 90%
Blocking depth: OD 4.0
Frame thickness: ~7.5 mm (body 5 mm + thread 2.5 mm); glass thickness: 1.85 mm

CH4 8nm 1.25 inch Filter E-series | AstroGear