The Singh-Ray 77mm LB ColorCombo Polarizer Thin Mount Filter blends both the LB Color Intensifier and LB Warming Circular Polarizer into a single filter to provide the benefits of both in a more convenient package.
The LB Color Intensifier aspect is designed to enrich local color contrast in specific regard to warm colors as well as greens. The filter strives to boost the intensity of those specific colors while maintaining a natural rendering of other neutral colors as well as white tones within the scene.
The LB Warming Circular Polarizer portion of the filter helps to reduce reflections and glare by filtering out light that has become polarized due to reflection from a non-metallic surface. This results in a noticeable increase in the saturation of skies and foliage, as well as clearer imagery when photographing in hazy conditions. A circular polarizer differs from a linear polarizer in that it supports full use of a camera's autofocus and auto exposure functions. Additionally, a warming effect is applied to imagery by imparting a slight red/yellowish hue across the entire image.
The LB designation of this filter stands for "Lighter, Brighter", which refers to the lower optical density of the filter that enables shorter shutter speeds or smaller f/stops to be used when the filter is in place. The brighter design of the filter also enables a brighter viewfinder image to aid in composition as well as improves auto exposure and focusing performance. This filter requires an additional 2 stop exposure for normal results.
Singh-Ray ring-mounted filters are constructed from highly polished proprietary glass to provide notable image quality and clarity. The thin ring mount design measures 4.8mm-thick and helps to prevent vignetting when used on wide-angle lenses. It does not feature front threads for stacking filters or using clip-on style lens caps.
LB Color Intensifier
- Enhancing filter boosts the intensity of greens and warm colors without producing an unnatural appearance.
- Strengthens local color contrast and saturation.
- Maintains a natural rendering of whites and other neutral colors.
LB Warming Circular Polarizer
- Reduce reflections and glare by filtering out light that has become polarized due to reflection from a non-metallic surface.
- Arrange and filter directionally polarized light perpendicularly to the reflected light allowing for the absorption of much of the light.
- Lessens haze in distant landscapes and provides more saturated, vivid colors.
- Strongest effect when used at a 90° from the sun.
- Warming effect adds a red/yellowish tone to imagery in order to minimize overwhelming cool tones and add a brighter appearance.
LB ColorCombo Polarizer
- "Lighter, Brighter" design enables shorter shutter speeds or smaller apertures to be used.
- Thin filter ring helps to prevent vignetting when used on wide-angle lenses.
- Constructed from highly-polished glass to provide high image quality and clarity.