Optolong UV/IR Blocking Filter and Luminance Filter 2" mounted

The filter reliably blocks ultraviolet and infrared light. This increases the contrast and sharpness of the images. The filter is absolutely necessary for photography through telescopes and optics where lenses or correctors are used. The most important application areas of the filter are:

♦ Luminance filter/L-filter for L-RGB images with astro cameras (astrophotography)
♦ Infrared cut filter for deep-sky imaging with cameras without IR cut filter, blurred star images are prevented
♦ Infrared blocking filter for images of the moon and planets to increase sharpness by blocking the IR light
♦ Reflection of thermal radiation and blocking of UV radiation, therefore the filter is also used for solar observation and photography. The filter itself has no damping effect, therefore it may only be used with a suitable lens sun filter.