Optolong 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 to broadband emission objects such as galaxies, reflection nebulae and globular star clusters. L-Pro is the best choice for light pollution suppression.

• Isolates emissions of nebulae into H-Alpha and OIII
• Compatible with DSLR, color/monochrome CMOS, and CCD cameras
• Muli-layers of anti-reflection coating
• High density sponge carton lining

• The convenience and cost effectiveness of this filter allows amateurs to image a rich selection of astronomical images, even in bright, heavily light-polluted areas.
• Isolates H-alpha, H-beta, and Oxygen iii Nebula Emission Lines
• The bandwidths are 24nm for OIII and H-beta, and 10nm for Ha
• Maximum Transmission of up to 90%