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At the North East Astronomy Forum 2010, they revealed the Ethos SX, a 3.7mm focal length eyepiece with an even greater 110° apparent field-of-view. [3] In 2011, a new line of eyepieces was introduced called the Delos. These eyepieces are based on the Ethos but have a smaller field of view of 72°. Instead, they boast a comfortable 20mm eye relief.
Orion ED120 apo refractor on Orion's Sirius EQ-G "GoTo" and GPS equipped German equatorial mount with portable 12 volt power supply. Orion sold a range of telescopes that they characterize as "beginner", "intermediate" or "advanced", including Newtonians, Maksutovs, Schmidt-Cassegrains, Ritchey-Chrétiens and refractors with or without (sold as optical tube assemblies or "OTA") a variety of ...
Old video camera viewfinder cutway; note the miniature CRT An Olympus PEN E-PL5 mounted with an external EVF unit: the Olympus VF-4 EVF of Panasonic Lumix DMC-G85/G80 with 2,360,000 dots. An electronic viewfinder ( EVF ) is a camera viewfinder where the image captured by the lens is displayed on a small screen (usually LCD or OLED ) which the ...
Wholesale costs in the United States picked up sharply last month, signaling that price pressures are still evident in the economy even though inflation has tumbled from the peak levels it hit ...
British Army Reserve soldier demonstrates a virtual reality headset.. A head-mounted display (HMD) is a display device, worn on the head or as part of a helmet (see helmet-mounted display for aviation applications), that has a small display optic in front of one (monocular HMD) or each eye (binocular HMD).
WASHINGTON – It’s a pre-Thanksgiving tradition at the White House, but an animal rights group says it’s a fowl festivity that is, well, foul. “As a ‘lame duck,’ you no longer need to ...
(Reuters) -Wall Street's main indexes were mixed on Monday, as investors looked ahead to earnings from AI-chip leader Nvidia following a rout the previous week on apprehensions about Donald Trump ...
Newtonian telescope design. A Newtonian telescope is composed of a primary mirror or objective, usually parabolic in shape, and a smaller flat secondary mirror.The primary mirror makes it possible to collect light from the pointed region of the sky, while the secondary mirror redirects the light out of the optical axis at a right angle so it can be viewed with an eyepiece.