Heliopan 40.5mm Linear Polarizer Filter

Discover the transformative power of the 40.5mm Linear Polarizer Filter, a must-have tool for both color and black-and-white photography. This color-neutral filter enhances your photographic capabilities by controlling light polarization, a feature that cannot be replicated with colored filters.

Natural light disperses in all directions, with sunlight being polarized and possessing high color purity. As it passes through the atmosphere, part of it scatters, casting a dull gray haze over all colors. This 40.5mm Linear Polarizer Filter effectively reduces or eliminates this effect, allowing for more vibrant and true-to-life images.

When light strikes a reflective surface like water, glass, or plastic at an angle of approximately 35½ degrees, it becomes reflected and polarized. With the use of this filter, properly oriented, these reflections are absorbed, allowing the true colors to reach the film. This results in transparent water surfaces and more saturated clouds, enhancing the overall visual impact of your photographs.

The light loss associated with a polarizing filter ranges between 1 and 1.5 F stops. However, this can be manually or automatically corrected, depending on your camera type.

The 40.5mm Linear Polarizer Filter is constructed with a neutral color foil cemented between two plane parallel glass discs. This design allows light rays to pass in only one plane. The filter is mounted in a calibrated rotating ring, enabling easy adjustment to achieve the desired effect.

This filter is compatible with both SLR and viewfinder type cameras. With SLR, you can see the result in the finder, while with viewfinder type cameras, you simply hold the polarizer in front of your eye and rotate it to see the desired effect.

The filter comes with a calibrated rim, making it easy to set the filter to the same position on the lens. If no effect is visible, it indicates that the available light conditions cannot be polarized, and the use of the filter is not advisable.

The 40.5mm Linear Polarizer Filter is a linear type, but it's important to note that there are also circular polarizers. Circular polarizers are required for camera systems where the built-in light measuring system uses light that has passed through the mirror via a beam splitter.

This filter is also compatible with autofocus lenses in video cameras. However, overheating of the polarizing filter should be avoided. Enhance your photography with the 40.5mm Linear Polarizer Filter and capture the world in its true colors.