Optolong Filters L-Pro 2''

The Optolong L-Pro nebula filter opens up possibilities for astrophotography in urban environments, delivering exceptional results. It significantly boosts contrast and extends exposure times by approximately threefold for DSLR, color, and monochrome astro cameras.

Notably, it provides superior color balance compared to similar filters when paired with DSLR cameras and one-shot color cameras featuring CMOS sensors, such as those by ZWO. Additionally, significant enhancements are observed when using mono cameras, particularly for luminance exposures.

This filter excels at enhancing the contrast of deep-sky objects while suppressing sky background interference. Its intricate transmission characteristics allow deep-sky object lines to pass through while blocking various sources of light pollution, including atmospheric oxygen emissions ("skyglow"). Particularly effective in light-polluted areas, it serves both visual and photographic purposes.

In contrast to filters like UHC or CLS, which primarily target light pollution, this multi-bandpass filter minimizes the impact on color rendition, making it suitable for photographing continuum sources like galaxies, globular clusters, and reflection nebulae.

Key Features:

• Blocks UV and IR radiation (700 - 1100 nm)
• High transmission at the passband
• Minimal impact on color rendition
• High optical quality

Specifications:

Capacity: Single

Coating of Optical System: Multiple

Frame: 2"

Transmission: 95%

Surface Accuracy: 1/4

Material: Schott glass

Width (mm): 1.85

Type: Filters

Area of Application:

Useful for photographs: Yes

Visually useful: Yes

Nebulae & galaxies: Yes