Optolong L-eNhance 2": astrophotography with your color camera
DeLorean by L-eNhance brought narrowband photography within reach for color cameras and remains one of the most popular nebula filters. The filter transmits three emission lines through two passbands: H-beta and OIII in a combined 24 nm band, and H-alpha in a 10 nm band. All other light, including light pollution, is blocked.
The result: emission nebulae emerge with surprising contrast from a single exposure series, even under a heavily light-polluted sky. The 2-inch version (M48 thread) prevents vignetting on larger sensors and fits into 2-inch filter holders and photographic adapters.








Who is L-eNhance for?
This is the entry-level filter in the L-series for nebula photography with a color camera or astro-modified DSLR. If you want narrower later on, the L-eXtreme (7 nm) and L-Ultimate (3 nm) are the next steps.

Technology
The optical glass is multi-coated with ion-assisted deposition: scratch-resistant, temperature-stable, and with high transmission at the emission lines.
Featured accessories
A clear focus filter makes focusing with this filter much faster.
For whom yes and for whom no
- ✓ Owners of color cameras and astro-modified DSLRs
- ✓ Navel photographers under a light-polluted sky
- ✗ Monochrome photographers: loose narrow-band filters offer more flexibility
- ★ Galaxy and Star Cluster Photographers: Choose a broadband filter such as the L-Pro
Specifications
| Type | Tri-band (dual-bandpass) notch filter |
| Passage | H-beta + OIII (24 nm band), H-alpha (10 nm band) |
| Suitable for | Color cameras, astro-modified DSLRs |
| Execution | 2 inches |
| Coating | Multilayer, ion-assisted deposition |
You can find more accessories for this merk at the Optolong merk page.












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