The Televue Spacer 0.250" (6.4mm) threaded coupling provides the necessary distance for proper spacing between field lenses and CCD chip. It is designed for Televue Imaging System telescopes with 2.4" focusers. Required spacers will vary, depending on camera used. It's made of black anodized aluminum with anti-reflection threads for maximum contrast.
|Name||TeleVue - 0.25 " Length Accessory Tube for 2.4 "|