{"product_id":"heliopan-bay-60-slim-variable-nd-schott-glass-filter-nd-0-3-to-nd-1-8","title":"Heliopan Bay 60 SLIM Variable ND Schott Glass Filter (ND 0.3 to ND 1.8)","description":"\u003cdiv\u003e\u003cstrong\u003eItem Includes\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003eHeliopan ND-VARIO Slim Variable Neutral Density Filter\u003c\/li\u003e\n\u003cli\u003ePremium Rotatable Slim Brass Frame\u003c\/li\u003e\n\u003cli\u003eProtective Storage Case\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eOverview\u003c\/strong\u003e\u003cbr\u003eThe Heliopan ND-VARIO Type 2199 is a professional, German-made variable neutral density filter engineered for seamless exposure control in both video and still photography. It provides stepless regulation of light intensity from ND 0.3 to ND 1.8, effectively replacing an entire set of fixed gray filters.\u003c\/div\u003e\n\u003cdiv\u003eThis specific version features an ultra-sleek, slim brass profile built without a front thread, preventing edge vignetting while maintaining a highly compact setup. The filter mechanism utilizes two high-grade polarization foils layered between precision optical glass; rotating the outer ring smoothly alters the gray value across a wide creative spectrum.\u003c\/div\u003e\n\u003cdiv\u003eFor videographers using DSLR or mirrorless setups, it is crucial for locking in the ideal 1\/50 or 1\/60 shutter speed when shooting wide open under harsh sunlight. For photographers, it enables a shallow depth of field during bright midday portrait sessions or allows long-exposure effects that blur moving water and eliminate passing crowds from architectural shots.\u003c\/div\u003e\n\u003cdiv\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003eContinuous Density Control: Seamlessly adjusts light transmission from ND 0.3 to ND 1.8 without needing to swap filters.\u003c\/li\u003e\n\u003cli\u003eWide Stop Range: Delivers an adjustable exposure reduction spanning 1 to 6 full stops.\u003c\/li\u003e\n\u003cli\u003eNon-Overbuilt Slim Profile: Ultra-compact brass construction fits cleanly onto your lens without adding unnecessary outer bulk.\u003c\/li\u003e\n\u003cli\u003eLens Hood Friendly: Engineered slim design allows for continued use of standard matching lens hoods.\u003c\/li\u003e\n\u003cli\u003ePremium Brass Ring: Built with durable brass to provide smoother gliding properties and prevent binding or cross-threading.\u003c\/li\u003e\n\u003cli\u003eCinematic Shutter Lock: Lets filmmakers maintain fixed frame-rate shutter speeds in bright environments while preserving wide apertures.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cstrong\u003eSpecs\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003eFilter Type: Variable Neutral Density\u003c\/li\u003e\n\u003cli\u003eHeliopan Model: Type 2199\u003c\/li\u003e\n\u003cli\u003eCategory: Variograufilter\u003c\/li\u003e\n\u003cli\u003eManufacturer: HELIOPAN\u003c\/li\u003e\n\u003cli\u003eDensity Range: ND 0.3 to ND 1.8\u003c\/li\u003e\n\u003cli\u003eExposure Reduction: 1 to 6 Stops\u003c\/li\u003e\n\u003cli\u003eFilter Factor Range: 2x to 64x Extension\u003c\/li\u003e\n\u003cli\u003eFrame Material: Premium stable brass with matte black finish\u003c\/li\u003e\n\u003cli\u003eFrame Profile: SLIM\u003c\/li\u003e\n\u003cli\u003eOptical Construction: Two polarized optical glass foils in a rotatable assembly\u003c\/li\u003e\n\u003cli\u003eWide Angle Limitation: Best performance at focal lengths 35mm and above; slight blue color shifts or cross-shaped shadows can occur near maximum density on wider lenses\u003c\/li\u003e\n\u003cli\u003eCountry of Origin: Germany\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003c\/div\u003e","brand":"Heliopan","offers":[{"title":"Default Title","offer_id":51394906030375,"sku":"21993060","price":459.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0877\/0597\/7127\/files\/2199.jpg?v=1778778212","url":"https:\/\/cambridgeworld.com\/products\/heliopan-bay-60-slim-variable-nd-schott-glass-filter-nd-0-3-to-nd-1-8","provider":"Cambridge World Inc","version":"1.0","type":"link"}