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Build a Motorized Barn Door Tracker.: 6 Steps (with Pictures)
Now if I can figure out the directions on how to construct a barn door tracker...
Many people think that the manipulation of images started with the invention of Photoshop, but there have been fake photographs since the invention of photography.
Barn Door Tracker for Astrophotography
How to Build a Barn Door Tracker
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Barn door tracker - Wikipedia, the free encyclopedia
Barn door tracker