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Spotting scope eyepieces are usually interchangeable to adapt for different magnifications, or may have variable zoom to give a range of magnifications. Magnifications less than 20× are unusual, as are magnifications more than 60× since the latter can lead to poorer image brightness, a narrow field of view and too much image shaking, even on ...
The portmanteau term "digiscoping" (= digital camera + telescoping) was coined in 1999 by French birdwatcher Alain Fossé.Less notable neologisms for this activity are digiscope birding, digiscopy birding, digi-birding, digibinning (using digital camera with binoculars), and phonescoping [3] (using a digital camera phone with a spotting scope or binoculars).
The 30mm DS30M Mark 2 is a ship-protection system made by MSI-Defence Systems consisting of a 30mm Mark 44 Bushmaster II cannon on an automated mount. It was designed to defend Royal Navy frigates from fast inshore attack craft armed with short-range missiles, rocket-propelled grenades, machine guns, or explosives.
Bushmaster's firearms, such as the XM-15 line, were offered in a 5.56 NATO chambering with forged aircraft-grade (7075-T6) aluminum receivers. Most Bushmaster barrels were 4150 steel, offered in 1:9 twist rate, and chrome-lined to increase durability. Some barrels were available with 1:7 rifling on special order.
Nightforce Optics, Inc. is an American manufacturer of high-end telescopic sights, spotting scopes and mounting accessories, based in Lavonia, Georgia with factory headquarters in Orofino, Idaho. Established in 1992, the company is the optic subsidiary of Lightforce Performance Lighting , an Australian manufacturer of specialty lighting ...
The Mk44 Bushmaster II is a 30 mm chain gun manufactured by Northrop Grumman. It is a derivative of the 25 mm M242 Bushmaster , and uses 70% of the same parts as the M242 while increasing the firepower by as much as 50% with the 20% increase in caliber size.