U.S. Air Force Airmen from the 1st Maintenance Squadron conventional unit, load 20 mm rounds on to a universal ammunition loading system at Joint Base Langley-Eustis, Virginia, May 1, 2018.

Meanwhile, the 20mm Oerlikon still arms some naval units, nominally as a last-recourse anti-air weapon (somewhat akin to the Phalanx CIWS, albeit with nowhere near the impressive buzzsaw-like rate ...

Sharpness is highly impressive. The centre is excellent from f/1.8 to f/2, outstanding from f/2.8 to f/8 and excellent at f/11 and f/16. The edges are excellent from f/1.8 to f/4, outstanding at f ...