Astronomik ProPlanet IR-Pass Filter

This filter blocks visible light and allows only infrared wavelengths between 642 nm and 842 nm to pass. By isolating this infrared spectrum, it significantly reduces the effects of atmospheric turbulence, resulting in much sharper and more stable images of planets like Mars, Jupiter, and Saturn.

Yes, the 36mm round unmounted design is specifically intended for use in standard filter wheels that accept unmounted filters. Please ensure your filter wheel is compatible with 36mm round discs before purchasing.

No, the filter is diffraction-limited and manufactured to high optical standards, meaning it will not introduce aberrations or degrade the image quality of your telescope. Its 1mm thickness ensures it remains neutral within your optical train.

The filter features MFR coatings that are specifically engineered to be scratch-resistant and highly durable. They are designed to withstand aging and high humidity, ensuring the filter maintains its performance over many years of use.

While it is primarily optimized for planetary imaging, it can be used for specific infrared-sensitive deep-sky targets. However, its narrow spectral window is best suited for high-resolution lunar and planetary work rather than broad-spectrum nebula imaging.