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Canon EOS R Clip L-Pro Optolong Filter

In suburban areas with little light pollution, the color balance is good. The multi-band pass design ensures excellent color restoration.

L-Pro is a low color tone filter, which is specially designed for starry sky photography. That's not possible with other light pollution filters!

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Entrega entre 8 y 10 días laborables
Entrega entre 8 y 10 días laborables

The Optolong L-Pro (L-Professional) filter is designed to improve the visibility of various deep sky objects. By selectively reducing the transmission of wavelengths of light pollutants, specifically those produced by artificial lights, including mercury vapor lamps, high and low pressure sodium vapor lights, and unwanted natural light caused by the emission of neutral oxygen in our atmosphere (i.e. sky brightness). Along with the highly transparent main nebula emission lines in OIII (496nm and 500nm), H-beta (486nm), NII (654nm and 658nm), H-alpha (656nm), and SII (672nm), the filter is suitable for enhance contrast and detail for both visual and photographic purposes in suburban areas with high light pollution.

Unlike other UHC and CLS light pollution filters, L-Pro is a multi-bandpass filter that offers better color balance by maximizing the transmission band. Balanced transmission allows astronomical pictures to be taken with minimal color cast for broadband emitting objects such as galaxies, reflection nebulae, and globular star clusters. L-Pro is the best choice for light pollution suppression.

Main use and performance

Suitable for visual observation and astrophotography.

The L-Pro filter has a very low transmission reduction rate against continuous spectrum space objects and is therefore quite effective in suppressing light pollution sources when photographing galaxies, reflection nebulae and globular star clusters. The same is true for visual observations of stars.

The L-Pro filter alone can suppress the infrared wavelength and therefore can easily be used for CCD "L" imaging. The light pollution filter does not remove the effects of light pollution or increase the brightness of the object. In many cases, they increase the contrast between the nebula and the night sky, without lighting the nebula.

L-Pro EOS-R Compatible Cameras and Lenses

Applicable camera body:


Applicable lenses:

Complete range of RF main and auxiliary lenses

Full range of main and auxiliary EF lenses (adapter required)

WARNING: Optolong filters are not designed for sun viewing. DO NOT LOOK AT THE SUN WITH ANY OPTOLARGO FILTER. You would be BLIND, if you fail to heed the warning.



Appropriate for...  Canon EOS


Type Filters 
Type of build Broadband Filters 

Area of application

Useful for photographs yes
Galaxies and star clusters yes
Anti light-pollution yes
Moon & Planets no
Nebulae & galaxies yes
Planetary nebulae - (not recommended)
Visually useful no
Hydrogen nebulae - (not recommended)
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