day or night. If you are shooting with a Canon DSLR, the next lens we recommend is the Canon EF 70-200mm f/4L IS USM as your telephoto and, if you have an APS-C body, the Canon EF-S 10-18mm f/4.5 ...

lens 38 mm in diameter with a 50 mm focal length. Add a printed enclosure, and the result is a monocular night vision display. Do it three more times and arrange them around one’s eyeballs ...