The Z50II cuts size and weight versus full-frame cameras, its APS-C (DX in Nikon speak) sensor affords a smaller form overall, 3.8 by 5.0 by 2.6 inches (HWD) and 17.5 ounces. I won't go as far as to ...
Building an Arduino speed detector using IR technology to measure the speed of a moving object is much more cost-effective, and it is also very simple to build. All you need are a few basic parts, ...