Anti-Reflection Coated Optical Glass Convex Lens for Professional Photography
Anti-Reflection Coated Optical Glass Convex Lens for Professional Photography
Material & Core Properties:
Crafted from premium optical glass, typically fine-annealed B270 or equivalent high-transmission crown glass, this lens provides exceptional clarity and color fidelity.
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Anti-Reflection Coating: Multi-layer broadband AR coatings are applied to all air-glass surfaces. This technology dramatically reduces surface reflections (often to <0.5% per surface), minimizing lens flare and ghosting caused by stray light.
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High Light Transmission: The AR coating ensures over 99.5% light transmission across the visible spectrum (400-700nm), maximizing the efficiency of your lighting setup and preserving shadow detail.
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Precision Optical Figure: The convex spherical surface is accurately ground and polished to a high degree of surface accuracy (often λ/4 or better) to ensure uniform focusing without introducing unwanted optical aberrations.
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Scratch-Resistant Surface: The hard, durable coating protects the optical glass from minor abrasions, ensuring longevity on busy sets.
Primary Function:
This positive meniscus or biconvex lens is engineered to converge light rays. In professional photography, its core functions are:
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Light Concentration & Control: To gather and focus light from a source, increasing its intensity and directionality for efficient illumination over a controlled area.
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Image Quality Preservation: The AR coating is critical for maintaining high contrast and saturation by eliminating internal reflections that cause haze and reduce image pop, especially in backlit or high-contrast scenes.
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Optical System Integration: Serves as a key element within custom lens arrays, projection systems, and specialized optical attachments for creating specific photographic effects.
Key Applications:
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Studio & Portrait Lighting: Integrated into softboxes, beauty dishes, and spotlight modifiers to shape and focus strobe or continuous light with precision.
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Macro & Product Photography: Used in custom rigs for precise light focusing on small subjects, highlighting texture and detail without flare.
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Cine & Video Production: Essential for building lens systems for projectors, anamorphic attachments, or custom bokeh modification tools.
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High-End Optical Attachments: A core component in diopters, magnifiers, and custom filters designed to modify the optical path of primary camera lenses.
| Name | Optical Convex Lens |
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Material |
Optical Glass,borosilicate glass,Fused Silica, |
| Diameter Tolerance | +0/-0.2 mm |
| Thickness Tolerance | +/-0.2 mm |
| Cler Aperture | over 90% |
| Surface Quality | 80/50~10/5 |
| Transmission | above 92% |
| Chamfer | 0.1-0.3 mm x 45 degree |
| Focal Length Tolerance | +/-2% |
| Back Focal Length Tolerance | +/-2% |
| Coating | available |
| Usage | optical system, photographic sysem, Lighting system,laser,camera,monitor,projector,magnifier,telescope, etc. |
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