Promaster 49mm Pure Light Circular Polariser Filter

The ProMaster Pure Light Circular Polariser 49mm Filter is a circular polarising filter from ProMaster with a 49mm diameter.

• Diameter: 49mm
• Filter Type: Circular Polarizer
• Construction: High-quality optical glass

Reducing reflections and glare

A circular polariser can control reflections and reduce glare on non-metallic surfaces, such as water, glass and glossy paint.

It can also improve color saturation and contrast, deepen the blue color of skies, and reduce the appearance of atmospheric haze when photographing distant objects and landscapes.

Glass, coatings and frame

The glass is Schott B270 optical glass, finely polished, and is multi-coated with 12 layers. A matte black coating on the glass edge reduces internal reflections, and the glass is set into an anodized aluminum frame.

The filter is highly resistant to dirt, oil, water and fingerprints. ProMaster Pure Light filters are crafted with care and precision in Japan.

Light transmission

Measured as an average at 400 to 700 nm, the 49mm filter has a maximum light transmission of 87.1%, an average of 42.9% (about 1.2 f-stops), and reflection of less than 0.5%.

Thread and sizes

The filter thread is 49mm on the front and back. ProMaster Pure Light filters are offered in sizes from 46 to 95 mm: 46, 49, 52, 55, 58, 62, 67, 72, 77, 82 and 95 mm.

Polariser or protection filter?

A circular polariser can control reflections and reduce glare on non-metallic surfaces. A protection filter protects the lens from dust, dirt, oil, water and fingerprints. For protection, see the Pure Light Protection 49mm filter.

What's in the box

• The 49mm circular polariser filter
• Eco-friendly snap case, which doubles as the storage case

Why choose it

• Schott B270 optical glass, finely polished
• Multi-coated with 12 layers
• Matte black edge coating reduces internal reflections
• Reflection less than 0.5% (average at 400-700 nm)
• Made in Japan