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the ED80 is perfect for spontaneous stargazing or as a secondary scope for advanced astrophotography setups
or plants while documenting their activity with a built-in time-lapse camera
25" H-Beta Range from 478nm to 496nm with peak at 489nm
The 8x magnification offers a stable
twist-up eyecups
Field Flattener f/5 to f/7 92-series-eyepieces the ED80 is perfect forWhen doing astrophotography with refractor type telescopes, the faster the focal ratio the more field curvature becomes a problem. Field curvature will appear in the corners of astrophotographs, making the stars smear perpendicular to the axis of the image. This is called coma coma is Latin for comet, because the stars look like comets. The more the curvature, the closer to the center the coma appears. The larger the sensor, the worse the coma.
