Optolong L-Pro Filter - 2" Equatorial Telescopes Use the darkest filter with

Use the darkest filter with larger aperture telescopes and lower magnification eyepieces

Quick release fork arm mount

an erect image star diagonal

The 80 mm refractor features excellent multi-coated Celestron Spotting Scope optics packed into a portable and durable refractor design and it comes standard with a 20-60x zoom eyepiece

Optolong L-Pro Filter - 2" Equatorial Telescopes Use the darkest filter withOptolong L Pro is multi bandpass filter which offers better color balance by maximizing the transmission band. The balanced transmission allows astrophotos to be taken with minimal color cast on broadband emission objects such as galaxies, reflection nebulae and globular star clusters. The Optolong L Pro (L Professional) Filter is designed to improve the visibility of various deep sky objects by selectively reducing the transmission of light pollution