4" (103.5mm) Telescope Flat Panel Calibration Unit
thingiverse
This is a Flat Panel for calibrating a telescope for Astrophotography. This fits a 4" dia telescope. This includes the Front cover, the spacer, the back cover, a dust cover, 1" extender spacer, and an outer ring clasp. **Update** 6-19-23 Added the extender spacer to lessen the chances of rings in the photos and allows for more filters. Also added an outer clasp to block 100% of light guaranteed without gaskets. For the outer clasp, you print twice.
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