ZWO 2" IR-Cut Filter
ZWO 2" IR Cut Filter
The ZWO 2" IR-Cut Filter blocks infrared light from reaching the sensor of your CCD or CMOS camera. When imaging, the addition of this simple and inexpensive accessory will result in sharper images.
Infrared or IR light is invisible to the human eye, and so blocking the infrared with a filter is not important if you are using your telescope visually. However, when you add a camera to the mix, it's a whole other story! Unlike the human eye, a silicon sensor is very sensitive to light in the infrared portion of the spectrum and left unfiltered, your images will not be as sharp as you would like. This problem can easily be solved by blocking the infrared, and the ZWO IR Cut-Off, or Blocking Filter, will do just that.
The ZWO IR-Cut filter is housed in a 2” cell and has internal threads so that you can stack filters together. The filter comes with a protective plastic case.