QHY 30mm f/4.3 MiniGuidescope - 100062 Antlia Dual & Tri-Band Filters shown above in top right

shown above in top right portion of image (the color version is shown at bottom left)

About the Celestron Universal Piggyback Mount

Image Circle: 42mm

8x Reducer/Flattener converts the TV-85 scope to 480 mm f/5

so you spend less time managing limits and more time imaging and exploring the night sky

QHY 30mm f/4.3 MiniGuidescope - 100062 Antlia Dual & Tri-Band Filters shown above in top rightWhen the pixels of a guide camera becomes small and QE becomes high, you may not need a big guide scope; smaller pixels can detect the guide error in a shorter focal length. Furthermore, when the focal length is reduced, the FOV becomes larger, so it is easier to find bright guide stars. The QHYCCD miniGuideScope is based on just this idea. The miniGuideScope is a 30mm f 4. 3 (130mm FL) ultra small telescope. It has no complex focal adjust system.