• Heliopan ND-VARIO Variable Neutral Density Filter
• Premium Rotatable Brass Frame with Front Thread
• Protective Storage Case

Overview
The Heliopan ND-VARIO is a premium, Germany-made variable neutral density filter designed for creative exposure control in film and photography. It allows stepless regulation of light intensity from ND 0.3 to ND 1.8, replacing a pocket full of individual fixed gray filters.

Built with an expertly processed brass frame, this filter maintains a standard profile diameter that matches your lens thread, meaning it is not overbuilt and remains compatible with your standard lens hood. By utilizing two high-grade polarization foils sandwiched between optical glass, turning the outer ring changes the gray value smoothly to open vast creative possibilities.

For videographers shooting on DSLR or mirrorless cameras, it is essential for maintaining the ideal 1/50 or 1/60 shutter speed at open apertures in bright sunlight to prevent choppy footage. For portrait and landscape photographers, it enables wide-aperture shallow depth of field in midday light or extended long exposures to turn running water smooth and wipe moving crowds from a scene.

• Stepless Light Regulation: Seamlessly scales exposure reduction from ND 0.3 up to ND 1.8 without swapping filters.
• Wide Exposure Range: Delivers a variable extension factor ranging from 2x to 64x, spanning up to 6 exposure stops.
• True-Size Brass Frame: High-quality brass construction features a front thread matching the screw-in diameter to avoid bulky outer rings.
• Lens Hood Friendly: Slim, non-overbuilt engineering ensures you can still mount your standard lens hood over the filter.
• Cinematic Shutter Control: Empowers video creators to shoot at bright apertures under direct sun while locking in natural motion blur.
• Long Exposure Utility: Drastically slows shutter speeds down for artistic water blur and clean, crowd-free architectural photography.

• Filter Type: Variable Neutral Density
• Heliopan Model: Type 2099
• Density Range: ND 0.3 to ND 1.8
• Exposure Reduction: 1 to 6 Stops
• Filter Factor Range: 2x to 64x Extension
• Frame Material: Premium stable brass with matte black anti-reflective finish
• Front Thread Size: Same diameter as the filter thread size
• Base Diameter Example: 52 mm
• Optical Construction: Two polarized optical glass foils in a rotatable assembly
• Wide Angle Note: Best performance on lenses 35mm and longer; crossed-polarization shadows or slight blue color shifts may appear near maximum density on extreme wide lenses
• Country of Origin: Germany