base length of rangefinder
41Mikoyan MiG-27 — MiG 27 A MiG 27 of the Indian Air Force Role Attack aircraft, Fighter bomber Manufacturer …
42HMS Hotspur (H01) — For other ships of the same name, see HMS Hotspur …
43Infrared photography — Top: tree photographed in the near infrared range. Bottom: same tree in the visible part of the spectrum …
44Kbs wz. 1996 Beryl — Infobox Weapon name=Karabinek szturmowy wz. 1996 caption=The wz.96 with PCS 6 passive night sight origin=flagcountry|Poland type=Assault rifle is ranged=yes service=1997 present used by=Poland wars=Operation Enduring Freedom Kosovo Conflict Iraq… …
45ZSU-57-2 — Infobox Weapon name=ZSU 57 2 (Ob yekt 500) caption=ZSU 57 2 in Lubuskie Military Museum in Drzonów, Poland, 1 July 2007. origin=flagcountry|Soviet Union type=Self propelled anti aircraft gun is vehicle=yes designer=Design Bureaus of Omsk Works No …
46Flash (photography) — The furious wing action of a Hummingbird Hawk moth is frozen by flash. The flash has given the foreground more illumination than the background. See Inverse square law A flash is a device used in photography producing a flash of artificial light… …
47Panther tank — Infobox Weapon name= Panther Ausf. A caption= Panther Ausf. A painted in one of many camouflage patterns origin= Nazi Germany type= Medium tank is vehicle=yes service= 1943 1945 (Nazi Germany) used by=Nazi Germany France wars= World War II… …
48Circle of confusion — For the closely related topic in microscopy, see Point spread function. In optics, a circle of confusion is an optical spot caused by a cone of light rays from a lens not coming to a perfect focus when imaging a point source. It is also known as… …
49Submarine aircraft carrier — Submarine aircraft carriers are submarines equipped with fixed wing aircraft for observation or attack missions. These submarines saw their most extensive use during World War II, although their operational significance remained rather small. The …
50Aperture — For other uses, see Aperture (disambiguation). f stops demonstrated on a lens …
