Optolong L2 Dual-Combo Set 2" - L-Synergy and L-Extreme narrowband filters

The set consists of two premium narrowband nebula filters for SHO astrophotography.

2" L-Extreme narrowband nebula filter with 7nm bandwidth in H-Alpha and O-III.
2" L-Synergy narrowband nebula filter with 7nm bandwidth in S-II and O-III.
Ideal for narrowband astrophotography with color cameras.

Optolong L2 2" Dual-Combo Narrowband Filter Set.
This set was developed for astrophotographers with color cameras who want to capture high-contrast and stunning nebula images using the Hubble palette. These two filters unlock the full potential of color cameras, making them virtually equivalent to mono cameras.

The set consists of two premium filters. The L-Extreme offers maximum contrast for H-2 regions and O-III, while the L-Synergy transmits S-II in addition to O-III. This captures the most important regions of the gas nebulae. If you compare the corresponding color ranges of the Hubble's palette, high-contrast false-color images are created. Astrophotographers who prefer natural colors will also achieve good results with this set.

Filter size: 2" mounted
Mount height: 5 mm without external thread - 7 mm with M48 thread
Substrate: high-quality optical glass (Schott)
Surface: finely polished
Coating: multi-coated and anti-reflective
Filter thickness: 2 mm

Two filters in a carrying and storage case