Description
IN SUBURBAN AREAS WITH LOW LIGHT POLLUTION, THE COLOR BALANCE IS GOOD. MULTI-BAND PASS DESIGN GUARANTEES EXCELLENT COLOR RESTORATION.
L-PRO IS A LOW COLOR GRADING FILTER, SPECIALLY DESIGNED FOR STARRY SKY PHOTOGRAPHY. THIS IS NOT POSSIBLE WITH OTHER LIGHT POLLUTION FILTERS!
THE OPTOLONG L-PRO (L-PROFESSIONAL) FILTER IS DESIGNED TO IMPROVE THE VISIBILITY OF VARIOUS DEEPSKY OBJECTS. SELECTIVELY REDUCING THE WAVELENGTH TRANSMISSION OF LIGHT POLLUTANTS, PARTICULARLY 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. SKYGLOW). TOGETHER WITH THE HIGHLY CLEAR MAIN NEBULA EMISSION LINES AT OIII (496NM AND 500NM), H-BETA (486NM), NII (654NM AND 658NM), H-ALPHA (656NM) AND SII (672NM), THE FILTER IS SUITABLE FOR IMPROVING CONTRAST AND DETAILS FOR BOTH VISUAL AND PHOTOGRAPHIC PURPOSES IN SUB-RURAL AREAS WITH HEAVY LIGHT POLLUTION.
UNLIKE OTHER UHC AND CLS LIGHT POLLUTION FILTERS, L-PRO IS A MULTIPLE BANDPASS FILTER THAT OFFERS BETTER COLOR BALANCE BY MAXIMIZING THE TRANSMISSION BANDWIDTH. BALANCED TRANSMISSION ENABLES ASTROPHOTOS WITH MINIMAL COLORS OF WIDEBAND EMISSION OBJECTS SUCH AS GALAXIES, REFLECTIVE NEBULA 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 VERY EFFECTIVE IN SUFFERING LIGHT POLLUTION SOURCES WHEN SHOOT GALAXIES, REFLECTION NEBULAUSES AND GLOBULAR STAR CLUSTERS. THE SAME GOES FOR VISUAL OBSERVATIONS OF THE STARS.
THE L-PRO FILTER ALONE CAN SUPPRESS THE INFRARED WAVELENGTH AND THEREFORE CAN BE USED AT EASE FOR SHOOTING "L" IMAGES WITH A CCD. THE LIGHT POLLUTION FILTER DOES NOT ELIMINATE 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, NOT BRIGHTENING THE NEBULA.
CAMERAS AND LENSES COMPATIBLE WITH L-PRO EOS-R
APPLICABLE MACHINE BODY:
EOS R/RA, EOS RP, EOS R5, EOS R6
APPLICABLE LENSES:
FULL RANGE OF MAIN AND RF AUXILIARY LENSES
FULL RANGE OF EF MAIN AND AUXILIARY LENSES (ADAPTER REQUIRED)
WARNING: OPTOLONG FILTERS ARE NOT DESIGNED FOR SUN OBSERVATION. DO NOT LOOK AT THE SUN WITH ANY OPTOLONG FILTER. YOU WOULD BE BLIND IF YOU DID NOT OBSERVE THE WARNING.
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