Hyperstar filter holder/dark filter

thingiverse

Here are 2 main files plus optional one. To take dark frames on a hyperstar equipped telescope, you will need the dark filter. The other one is filter holder for hyperstar, I tested these on celestron 9.25 with starizona hyperstar. The third optional file can be glued to the back to make sure no light leaks. After printing and cleaning, I immersed the filter in hot water for few seconds and then installed it in the drawer, pushing on all directions to make better fit. Please flip 180 degrees when printing! I don't know why it is upside down here!