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The M39 lens mount is a screw thread mounting system for attaching lenses to 35 mm cameras, primarily rangefinder (RF) Leicas. It is also the most common mount for Photographic enlarger lenses. True Leica Thread-Mount (LTM) is 39 mm in diameter and has a thread of 26 turns-per-inch or threads-per-inch (tpi) (approximately 0.977 mm pitch) of ...
Messier 39 or M39, also known as NGC 7092, is an open cluster of stars in the constellation of Cygnus, sometimes referred to as the Pyramid Cluster. It is positioned two degrees south of the star Pi Cygni [ 7 ] and around 9° east-northeast of Deneb . [ 8 ]
Anker makes power banks, charging cables, wall adapters, power strips, USB hubs, and torches under the Bolder sub-brand. Soundcore makes Bluetooth earbuds, headphones, and speakers. Eufy produces smart home appliances and security devices. Nebula makes portable video projectors. Roav makes car accessories. Zolo was a precursor to the Soundcore ...
The M39 cannon is a 20 mm caliber single-barreled revolver cannon developed for the United States Air Force in the late 1940s. It was used on a number of fighter aircraft from the early 1950s through the 1980s.
The "M39" cannon was originally called the "Pontiac M39". But over time it was just called the "M39". While I have found not absolute proof that Philco-Ford or Ford Aerospace produced the M39, Ford Aerospace developed an improved version of the M39 with a much higher firing rate for the defunct F-20 called "Tigerclaws".
Messier 29 or M29, also known as NGC 6913 or the Cooling Tower Cluster, is a quite small, bright open cluster of stars just south of the central bright star Gamma Cygni of a northerly zone of the sky, Cygnus.
The M39 armored utility vehicle (T41) is an American armored vehicle designed during the Second World War, which saw service in that conflict and in the Korean War. Like a number of vehicles of this type, it was built using an existing chassis, that of the M18 Hellcat .
M39 Enhanced Marksman Rifle in use with a U.S. Marine. The EMR is primarily used by a designated marksman , to provide precision fire for units that do not rate a scout sniper . As a replacement for the DMR, the EMR fills the need for a lightweight, accurate weapon system utilizing a cartridge more powerful than the M16A4's standard 5.56×45mm ...