Hoya L37 UV Sharp Cut Filter – Blue Light & Haze Reduction Lens Protection

Professional Sharp Cut Filters for Cameras & Optics > Camera & Optic Accessories > Camera Lens Accessories > Camera Lens Filters Applications HOYA CANDEO sharp cut filters are long-pass optical glass filters designed to block shorter wavelengths of light and allow longer wavelengths to pass. Within the wavelength range of approximately 350 nm to 800 nm, these filters selectively remove unwanted short-wavelength light—such as ultraviolet and blue—helping improve contrast, reduce scattering, and enhance image clarity for optical, inspection, and imaging applications. Key Features: High-precision wavelength cutoff Cameras & Optics > Camera & Optic Accessories > Camera Lens Accessories > Camera Lens Filters-grade optical quality Standard 50×50mm square format 2.5mm thickness for durability Suitable for imaging systems, inspection equipment, and optical analysis Available Series: L Series (L37-L42): Long wavelength pass filters Y Series (Y44-Y52): Yellow range filters O Series (O54-O58): Orange range filters R Series (R60-R72): Red range filters 📊 Comparison Chart View Detailed Colored Glass Filters Comparison Chart → Compare all filter specifications, transmission characteristics, and technical data on the HOYA CANDEO website. Technical Specifications ... Item Standard Value Color specification (Standard illuminants A) Thickness Refractive Index Chemical property Thermal properties Mechanical properties Specific gravity Model λT (nm) ∆λ (nm) TH (%) x y mm 600nm DW DA Tg Ts α -30/70 α 100/300 HK FA L37 370±5 <35 >85 0.448 0.408 2.5 1.580 2 1 440 490 94 103 460 170 3.26 L38 380±5 <35 >85 0.449 0.408 2.5 1.560 2 1 480 535 79 86 490 130 2.96 L39 390±5 <40 >85 0.450 0.409 2.5 1.588 2 1 440 490 90 100 460 170 3.29 L42 420±5 <25 >85 0.452 0.412 2.5 1.533 2 1 550 600 92 105 540 130 2.59 Y44 440±5 <25 >85 0.464 0.428 2.5 1.531 1 2 570 600 99 107 540 130 2.59 Y48 480±5 <25 >85 0.498 0.468 2.5 1.532 3 1 560 625 94 105 540 130 2.67 Y50 500±5 <25 >85 0.515 0.471 2.5 1.530 2 1 560 620 96 108 540 130 2.68 Y52 520±5 <25 >85 0.536 0.459 2.5 1.531 2 1 560 620 96 108 540 130 2.68 O54 540±5 <25 >85 0.572 0.427 2.5 1.532 1 1 560 625 99 107 520 140 2.68 O56 560±5 <25 >85 0.610 0.389 2.5 1.530 1 1 560 625 93 104 520 140 2.68 O58 580±5 <25 >85 0.654 0.346 2.5 1.531 1 1 560 625 93 104 520 140 2.68 R60 600±5 <25 >85 0.686 0.314 2.5 1.530 1 2 560 620 93 103 520 140 2.69 R62 620±5 <25 >85 0.714 0.286 2.5 1.533 1 1 560 620 95 107 520 140 2.68 R64 640±5 <35 >85 0.726 0.274 2.5 1.532 1 1 555 620 94 106 520 140 2.68 R66 660±5 <35 >85 – – 2.5 1.535 1 3 530 565 98 117 470 160 2.85 R70 700±10 <45 >85 – – 2.5 1.546 1 3 525 575 98 115 470 160 2.86 R72 720±10 <45 >85 – – 2.5 1.547 1 3 525 575 100 116 470 160 2.86 📋 Quality, Certifications & Environmental Compliance ISO Certifications, Warranty, Environmental Regulations, Handling Guidelines View Complete Information →