Camera lens polarising filter Rollei 26240 49 mm, circular polariser, 1-piece

Rollei 26240 is a 49 mm circular polarising filter for camera lenses that reduces reflections and increases colour saturation and contrast. The single-piece filter has a black titanium frame with transparent, highly tempered polarising glass and fits lenses with a 49 mm filter thread. It is designed for outdoor and landscape use and for situations where controlling glare from water, glass or foliage is important.

Advantages

The circular polariser lets you adjust the polarisation strength continuously by rotating the ring, so reflections on non-metallic surfaces can be suppressed or restored during composition. The optical element is made from highly durable tempered glass that transmits light with minimal colour cast and no optical distortion. The titanium filter ring provides dimensional stability and high resistance to temperature changes, while a special luminance coating increases scratch resistance and repels oil, dirt and water.

Suitable for

• Landscape and nature photography to deepen blue skies and enhance foliage colours
• Outdoor product and architectural shots to reduce reflections from glass and polished surfaces
• Seascapes and rivers to cut glare on water and reveal underwater detail
• General-purpose travel and outdoor photography where improved contrast and colour saturation are desired

Key specifications

• Filter type: circular polariser (CPL)
• Mount thread diameter: 49 mm
• Frame material: titanium
• Optical element: highly tempered polarising glass
• Surface treatment: luminance coating for increased scratch, oil and water resistance
• Colour characteristics: neutral transmission with increased saturation in blue and green tones
• Quantity: 1 piece

How to use

Attach the filter to the front thread of a compatible 49 mm lens and secure it by gently screwing it into place. Rotate the outer ring while viewing the scene through the viewfinder or on the camera screen to adjust the degree of polarisation until unwanted reflections are reduced or the sky and foliage saturation reach the desired look. Check exposure and white balance after applying strong polarisation, as the filter can slightly change transmitted light levels. When finished, unscrew the filter and store it in a protective case to avoid scratches.

Usage recommendations

For best results, use the polariser at a 90-degree angle to the sun to maximise sky darkening and colour saturation. Avoid stacking thick filters when close focusing to prevent vignetting on wide-angle lenses. Clean the glass using a soft lint-free cloth and a suitable lens cleaner to preserve the luminance coating.