The S-Series filter of the player one is developed by large factory technology, using high-quality optical glass substrate and multilayer composite coating technology, which has excellent optical performance in astronomical photography. 1.25 inch UV IR cut filter The main function of infrared and ultraviolet cut-off filter is to correct the color of image. Because color cameras like mars-c have super sensitivity in infrared and ultraviolet, if you want to get pure color photos of planets and the moon, you need to use this 1.25 inch infrared and ultraviolet cut-off filter to cut off infrared and ultraviolet rays. When taking solar photography, the strong infrared radiation will also affect the image clarity and contrast, so we also need to add infrared ultraviolet cut-off filter. It can be said that uv-ir-cut filter is one of the most widely used filters in astronomical photography. Specification: 1.25 inch, thread m28.5x0.6 Frame thickness: body 5mm + thread 2mm, a total of 7mm Thickness of filter lens: 2mm Transmittance: > 95% Infrared and ultraviolet cutoff depth: od3

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