Infrared cut filter 1.25 "
ZWO IR filters prevent infrared light from reaching your CCD or CMOS sensor or your expensive H-alpha filter. When imaging, the use of this simple and inexpensive accessory will result in clearer images and, when working in sunlight, the IR filter will protect the H-alpha filter from infrared radiation. Because the human eye cannot recognize infrared and infrared light, so most of the telescope will not design the function of focusing infrared light, so the visual does not affect the use of telescopes. But if you add a camera, it is completely another matter! Unlike the human eye, the silicon sensor is very sensitive to the light in the infrared part of the spectrum, which causes a problem that the normal image is superimposed with the infrared image, and the infrared image is blurred, and finally your pretty, clear Of the visible light image will be added to reduce the infrared layer. This problem can be easily solved by ZWO's infrared filter.
The ZWO IR filter is placed in a 1.25 "frame and the frame has internal threads so that you can stack a lot of filters together for easy sorting. In addition, our filter sheet is also equipped with a protective plastic case The