Abstract: In this paper, we demonstrate a low-cost mirror scanner design of umbrella-like architecture. The primary structures are 3D-printed using PLA (polylactic acid) as the material. A 400 mm 2 ...
The killing of a 37-year-old man by a federal agent exposed fresh cracks in G.O.P. unity, with some expressing alarm while others stayed silent or backed the Trump administration. By Catie Edmondson ...
It's a telephoto prime with a built-in teleconverter, letting photographers switch between two focal lengths in seconds. Here's how it works and what we know When you purchase through links on our ...
The Charmera will probably disappoint you with every shutter press, but it’s oozing with charm that’s hard to resist. The Charmera will probably disappoint you with every shutter press, but it’s ...
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