Evidence suggests ancient civilizations, including the Greeks, may have had early optical knowledge and devices like ...
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Digital Camera World on MSNThis photographer rigged a waist-level viewfinder from cheap mirrors for US$10 – and he’s sharing how you can, tooThe resulting product is a fully optical viewfinder that sits in the hot shoe slot and offers a waist-level view. Of course, ...
In his workshop in Padua, Italy, he discovered that plano-convex and plano-concave ... optical axis—hence the color fringes seen in refractors. Other scientists had speculated that using mirrors ...
The mirror is compatible with 1-inch Techspec kinematic circular optical mounts. It can be used with a 64-channel embedded high-voltage driver with a voltage of 250 V and an output current of 30 ...
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