List of products by brand Optolong

Optolong H-alpha 3nm filter 2" Optolong's H-alpha 3 nm narrowband filter passes a 3 nm band centred on 656 nm...

Optolong OIII 3nm filter 2" Optolong's OIII 3 nm narrowband filter passes a 3 nm band centred on 500 nm (the...

Optolong SII 3nm filter 2" Optolong's SII 3 nm narrowband filter isolates the ionised-sulphur emission line...

Optolong SHO-3nm narrowband filter kit 2" Optolong's SHO-3nm kit combines SII, H-alpha and OIII 3 nm...

Optolong SHO-3nm narrowband filter kit 36 mm Optolong's SHO-3nm kit combines SII, H-alpha and OIII 3 nm...

Optolong L-Synergy filter 2" The L-Synergy is a dual 7 nm narrowband filter passing OIII (500.7 nm) and SII...

Optolong L2 Dual-Combo Set 2" (L-eXtreme + L-Synergy) The L2 Dual-Combo Set pairs two dual-narrowband filters...