Astronomik ProPlanet IR-Pass Filter

An IR-pass filter blocks visible light and allows only infrared wavelengths to reach your sensor. This significantly reduces the effects of atmospheric turbulence, resulting in much sharper, more stable images of planets and the moon.

No, this specific model is engineered exclusively for Schmidt-Cassegrain (SC) rear cells. It is designed to thread directly onto the rear cell of an SC telescope, so it will not fit standard eyepiece holders or other telescope designs.

By filtering out the shorter, more scattered visible light wavelengths, the 642 BP allows the camera to capture the steadier, longer infrared wavelengths. This process cuts through atmospheric 'seeing' issues, revealing finer surface details on planets that would otherwise be blurred.

This filter is specifically optimized for digital imaging. Because it blocks the visible spectrum, it is not intended for visual use through an eyepiece, as you would see little to nothing through the filter.

The 10-year warranty covers manufacturing defects and material failures under normal use. It provides long-term peace of mind regarding the durability and optical integrity of the filter glass and housing.