# Title: ProMaster Pure Light Circular Polarizer (CPL) Filter - 43mm ## Description: This 43mm Circular Polarizer Filter (CPL) - Pure Light has a thread size of 43mm front and back. Has polished SchottTM B270 optical glass. The frame material is aluminum. Light transmission rate: maximum 87.1% / average 42.9% or about 1.2 f-stops (average at 400 - 700 nm). Reflection: less than 0.5% (average at 400 - 700 nm) ## Product type: * RETAIL - Lens Accessories - Filters - Polarizing ## Vendor: ProMaster ## Tags: ## Price range: 64.95 - 64.95 USD ## Link: https://procam.com/products/promaster-pure-light-circular-polarizer-cpl-filter-43mm ## Compare-at price range: 64.95 - 64.95 USD ## Options - Title: Default Title ## Variants - Default Title, SKU: PRO 87746, Available: yes, Inventory: 6, Delivery profile: - ## Metafields - specifications:
Thread size 43 mm (front and back)
Outer diameter 45.3 mm
Frame thickness:  4.9 mm (not including threads) / 6.9 mm (including threads)
Glass thickness: 2.0 mm
Glass type SchottTM B270 optical glass
Polished: Yes
Coatings: 12 layers
Light transmision rate maximum 87.1% / average 42.9% or about 1.2 f-stops (average at 400 - 700 nm)
Reflection less than 0.5% (average at 400 - 700 nm)
Frame material: Aluminum
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