ZWO 2-inch UV-IR Cut Filter

  • The ZWO IR-Cut filter is housed in a 2-inch cell.
  • The filter comes with a protective plastic case.
  • Thickness: 5 mm, 2 mm (thread).
  • Thread: M48x0.75 male thread.
  • Sale
  • Regular price $49.00

More on the Way in 14 - 28 Business Days

Free Shipping
Add to Wishlist
Already have gear? Trade it in for cash or new equipment.

Accessories Added

OPT Telescope Expert

Want Help?

Ask Our Telescope Experts


ZWO 2-inch UV-IR Cut Filter

The ZWO 2-inch UV-IR Cut Filter is suitable for a color camera with an AR protection window.

The IR-Cut filter blocks UV and IR wavelengths from reaching the sensor of CCD or CMOS cameras. When imaging, the addition of this filter will result in sharper images, and when using for solar observations, it will protect your H-alpha filter from damaging IR radiation.

Infrared or IR light is invisible to the human eye, so it is not a concern when 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 that is a problem because infrared images are blurry as all get out. That means your nice, sharp visual light image is degraded by the addition of the infrared layer. This problem can easily be solved by blocking the infrared, and the ZWO IR-Cut filter will do just that.

ZWO 2-Inch UV-IR  Cut Filter-graph


Filter Thickness1.9 mm
Filter TypeUVIR
Free ShippingYes


  • ZWO 2-inch UV-IR Cut Filter.
  • Protective plastic case.
Customer Reviews
5.0 Based on 4 Reviews
Write a Review Ask a Question
  • Reviews
  • Questions

Thank you for submitting a review!

Your input is very much appreciated. Share it with your friends so they can enjoy it too!

Filter Reviews:
Frank M.
United States United States

Works wonderfully. Got the North America Nebula. Without it, not a chance.

Craig H.
United States United States
Celestron off-axis guider

Takes some work to align optically with the imaging camera but well worth the effort. Very well made with large opening for Lodestar guide camera. Helical focus adjustment is also a huge plus. As always, OPT is terrific to work with.

Leon F.
United States United States
2”ir filter for asi071

Great, very pleasant and timely responses!

United States
IR-UV cut filter from ZWO

good quality at an excellent price!.