1.25''/ 31.7mm Infrared Filter/ Infrared Cut-off Filter Astronomical Telescope

 

Feature:

Infrared cut-off filter: The wavelength of infrared (IR) is between 780nm and 1mm, all above 780nm is cut off, and the infrared pass rate is almost zero. When shooting, especially when shooting stars and the moon at night, you can avoid the interference of infrared rays. Only visible light can pass through.

 

Infrared filter: The wavelength of infrared (IR) is between 780nm and 1mm. Almost all infrared rays above 780nm can pass through, and the visible light pass rate is almost zero. When shooting, you can avoid the interference of visible light. Only infrared rays can pass through.

 

Some special perspective effects can be photographed by using a modified camera (remove the infrared cut-off film). Image is dark. Details are more apparent.

 

Item Thread: M28.6*0.6

For Eyepieces Mount 1.25''(31.7mm)

Packgae Includes: 1pc filter.