HOYA Excel 1B 72mm High Quality Skylight Filter - New - Factory Sealed.

New in sealed box.

The 1B filter is a type of optical filter commonly used in photography. It is primarily designed to reduce the bluish cast that can occur in outdoor photography, especially under bright sunlight or in shaded areas. This filter is often referred to as a skylight filter and is slightly pink or purplish in color.

The 1B filter serves several purposes:

1. Color Correction: It helps in balancing the color tone of your images by warming up the scene, which results in more natural skin tones and reduces the need for post-processing adjustments.

2. Protection: Like many other screw-on filters, a 1B filter can also serve as a protective layer for the lens, safeguarding it from dust, scratches, and minor impacts.

3. Glare Reduction: It can help in reducing glare and reflections, particularly from water surfaces or metallic objects.

Overall, while digital cameras and editing software have advanced significantly in handling color balance, many photographers still use 1B filters for their immediate effects and lens protection.