L-eNhance 1.25"
Optolong · Filters
Dual-band filter transmitting Hα, OIII, and Hβ lines for capturing emission nebulae under heavily light-polluted skies. Enables long integrations even on moonlit nights or from semi-urban environments. Ideal for planetary nebulae and H-II regions.
- Type: dual-band (Hα + OIII + Hβ)
- Best for: emission nebulae