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121Maksutov telescope — A 150mm aperture Maksutov Cassegrain telescope. The Maksutov is a catadioptric telescope design that combines a spherical mirror with a weakly negative meniscus lens in a design that takes advantage of all the surfaces being nearly spherically… …
122Canon AV-1 — Infobox camera camera name = Canon AV 1 type = 35 mm SLR camera lens mount = Canon FD focus = manual exposure = Aperture priority flash = Hot shoe frame rate = Manual lever winding, unmodified. dimensions = The Canon AV 1 was a 35mm single lens… …
123Canon T90 — The Canon T90, introduced in 1986, was the top of the line in Canon s T series of 35 mm Single lens reflex (SLR) cameras. It was the last professional level manual focus camera from Canon, and the last professional camera to use the Canon FD lens …
124Nancy Newhall — 1942, photo by Barbara Morgan Nancy Wynne Newhall (May 9, 1908 – July 7, 1974) was an American photography critic. She is best known for writing the text to accompany photographs by Ansel Adams and Edward Weston, but was also a widely published… …
125Sigma SD14 — Infobox Digicam model = Sigma SD14 Digital single lens reflex sensor = 20.7 mm x 13.8 mm Foveon X3 sensor res = 2652 × 1768 × 3 (14.1 million active photoelements) lens = Interchangeable (Sigma SA mount) viewfinder = Optical, pentaprism storage …
126Telescope — A telescope is an instrument designed for the observation of remote objects and the collection of electromagnetic radiation. The first known practically functioning telescopes were invented in the Netherlands at the beginning of the 17th century …
127Gastropod shell — [ 1 umbilicus2 parietal callus3 aperture4 columella5 suture6 whorl7 apex] The gastropod shell is a shell which is part of the body of a gastropod or snail. It is an external skeleton or exoskeleton, which serves not only for muscle attachment,… …
128Earth Sciences — ▪ 2009 Introduction Geology and Geochemistry The theme of the 33rd International Geological Congress, which was held in Norway in August 2008, was “Earth System Science: Foundation for Sustainable Development.” It was attended by nearly… …
