Optolong L-Para Dual Narrowband Filter
| Article number: | LPRO-200 |
| Availability: | More on the Way to us |
| Delivery time: | More on the Way to Us |
Key Features:
Broad Compatibility:
A dual narrowband filter suitable for all telescope systems, adaptable to fast optics (focal ratios of F2, F2.8, F3.2, F4) as well as various standard/normal focal ratio telescopes.
Light Pollution Resistance:
Effectively cuts off emission lines from mercury lamps, sodium lamps, LEDs, and other light pollution sources, making it applicable to Bortle Scale1- 7 dark skies.
High Transmission Rate:
In systems with a focal ratio of F2 and above, the transmittance of nebula emission lines OIII and Ha exceed 85%, resulting in higher imaging efficiency.
Excellent Contrast:
The high transmittance of nebula emission lines (OIII & Ha) combined with deep cut-off of light pollution bands significantly improves image contrast and detail richness.
Anti-Halo Characteristics:
The design has undergone several round of optimizations and many times of repeated testing ,resulting in a marked improvement in anti-halo performance, enhancing the capture of bright stars.