IR Block Filter for 1.25" Threads
Blocks IR light to allow higher contrast imaging with CCD, Video and WebCams.
Sharp cutoff at 690nm leaves visible red, including the important 656nm H-alpha
emission line, preventing IR wavelengths from blurring fine detail in your digital
images. Also helps keep crud away and reduces frosting of imagers in cooled
cameras. Fits cameras, adapters and eyepieces with filter threads. Has male and
female threads for stacking with other filters. Comes with plastic filter case.
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Price includes shipping in the USA!