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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 M49 Spotting Scope, also known as the M49 Observation Telescope, [1] is a multipurpose scope system used primarily for long range marksmanship observation. It can also be used for observing the effects of artillery fires, wind direction, [ 2 ] and other general purposes.
Name Image Year built Location & coordinates Class of Light [3] Focal height [3] NGA number [3] Admiralty number [3] Range nml [3]; Biển Sơn Lighthouse: Image: 1962: Nghi Sơn Thanh Hóa province
A vintage 1970s "orange tube" Celestron C8 telescope. Celestron was the first large scale commercial manufacturer of the Schmidt-Cassegrain telescope, introducing its "C8" 8" diameter 2032 mm focal length, ƒ10 telescope in 1970. [7]
Trưng Trắc was the first female monarch in Vietnam, as well as the first queen in the history of Vietnam (Lý Chiêu Hoàng was the last woman to take the reign and is the only empress regnant), and she was accorded the title Queen Trưng (chữ Quốc ngữ: Trưng Nữ vương, chữ Hán: 徵女王) in the Đại Việt sử ký toàn thư.
The Việt Nam Quốc Dân Đảng (Vietnamese: [vìət naːm kwə́wk zən ɗa᷉ːŋ]; chữ Hán: 越南國民黨; lit. ' Vietnamese Nationalist Party ' or ' Vietnamese National Party '), abbreviated VNQDĐ or Việt Quốc, was a nationalist and democratic socialist political party that sought independence from French colonial rule in Vietnam during the early 20th century. [4]
Quoc Trung first appeared on the 3rd season of Vietnam Idol in 2010. In 2011, Trung founded Thanh Viet Production, a record label and stage production company. Trung produced Uyen Linh's first album, My Own Dream (Giấc Mơ Tôi), released in February 2011.
Bích Động is a temple complex, built in 1428. [6] It is situated on nearby Ngũ Nhạc Mountain, and consists of three separate temples: Hạ, Trung, and Thượng Temples, in ascending order. Guided tours generally cover historical points and end with a view from the top.