The USB digital eyepiece for telescopes from ThinkGeek has adapter rings (24.5mm and 31.7mm) for use with any telescope. The eyepiece uses a 1/2 inch, 1.3 megapixel image sensor to output images to your computer via a USB cable. You can view or save 1280 x 1040 video or photos to your computer. The USB Digital Eyepiece is $99.99.
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