Pages

Tuesday, December 31, 2013

Manufacturing Leica Lenses

Every Leica lens is hand-crafted and goes through meticulous manufacturing processes to uphold the quality and precision that Leica defines and customers have come to expect. In the age where technology almost inevitably means mass manufacturing, Leica products are still made with exacting precision by the hands of highly-trained technicians. This video gives you a behind-the-scenes look at the craftsmanship and making of Leica lenses in the production facilities of Leica Camera AG.
  





Sunday, December 08, 2013

Light in Motion with a Camera Imaging at One Trillion Frames per Second

With current imaging technologies it is now possible to literally view light in motion as it travels through time and space. Ramesh Raskar (WiKi) the Associate Professor and head of the Massachusetts Institute of Technology MIT Media Lab Camera Culture research group (wow, that's a mouthful) talks about what is possible and might be possible with a camera that is capable of shooting at an impressive rate of one trillion frames per second. Ramesh shows us a brilliant demonstration of a light beam as it passes through a Coke bottle. Ramesh also discuses a camera with the ability too see around corners like shown within the Enhance Scene (YouTube) from the popular 1982 sci-fi Blade Runner (IMDB).



PRESS: Camera Captures Images at a Trillion Frames per Second to Record Beams of Light





Monday, December 02, 2013

Time-lapse Video of a Supercell Near Booker, Texas


Uploaded June 9, 2013 ~ Copyright © Mike Olbinski Photography  

Mike Olbinski BlogA Supercell Near Booker, Texas ~ still image
Video Info: A Supercell Near Booker, Texas ~ at Vimeo
Press: Amazing Time-lapse Video Captures the Fearsome Beauty of a Supercell Thunderstorm
.
Wikipedia: Supercell




High-Speed Photography circa 1965


More: http:showbiz.quickfound.net/ 
.
"Probst Film High Speed Photography"

Public domain film from the Library of Congress Prelinger Archive, slightly cropped to remove uneven edges, with the aspect ratio corrected, and mild video noise reduction applied. The soundtrack was also processed with volume normalization, noise reduction, clipping reduction, and equalization.

High Speed Photography

High Speed Photography
(WiKi) is the science of taking pictures of very fast phenomena. In 1948, the Society of Motion Picture and Television Engineers (SMPTE) defined high-speed photography as any set of photographs captured by a camera capable of 128 frames per second or greater, and of at least three consecutive frames. High speed photography can be considered to be the opposite of time-lapse photography.

In common usage, high speed photography may refer to either or both of the following meanings. The first is that the photograph itself may be taken in a way as to appear to freeze the motion, especially to reduce motion blur. The second is that a series of photographs may be taken at a high sampling frequency or frame rate. The first requires a sensor with good sensitivity and either a very good shuttering system or a very fast strobe light. The second requires some means of capturing successive frames, either with a mechanical device or by moving data off electronic sensors very quickly.

Other considerations for high-speed photographers are record length, reciprocity breakdown, and spatial resolution.

The first practical application of high-speed photography was Eadweard Muybridge's (WiKi) 1878 investigation into whether horses' feet were actually all off the ground at once during a gallop.

The first photograph of a supersonic flying bullet (JPEG) was taken by the Austrian physicist Peter Sacher in Rijeka in 1886, a technique that was later used by Ernst Mach (WiKi) in his studies of supersonic motion.

Bell Telephone Laboratories was one of the first customers for a camera developed by Eastman Kodak 
in the early 1930s. Bell used the system, which ran 16 mm film at 1000 frame/s and had a 100-foot (30 m) load capacity, to study relay bounce. When Kodak declined to develop a higher-speed version, Bell Labs developed it themselves, calling it the Fastax (WiKi). The Fastax was capable of 5,000 frame/s. Bell eventually sold the camera design to Western Electric, who in turn sold it to the Wollensak Optical Company. Wollensak further improved the design to achieve 10,000 frame/s. Redlake Laboratories introduced another 16 mm rotating prism camera, the Hycam (Google Images), in the early 1960s. Photo-Sonics developed several models of rotating prism camera capable of running 35 mm and 70 mm film in the 1960s. Visible Solutions introduced the Photec IV 16 mm camera in the 1980s.

In 1940, a patent was filed by Cearcy D. Miller for the rotating mirror camera, theoretically capable of one million frames per second. The first practical application of this idea was during the Manhattan Project, when Berlin Brixner, the photographic technician on the project, built the first known fully functional rotating mirror camera. This camera was used to photograph early prototypes of the first nuclear bomb, and resolved a key technical issue, that had been the source of an active dispute between the explosives engineers and the physics theoreticians.

The D. B. Milliken company developed an intermittent, pin-registered, 16 mm camera for speeds of 400 frame/s in 1957. Mitchell, Redlake Laboratories, and Photo-Sonics eventually followed in the 1960s with a variety of 16, 35, and 70 mm intermittent cameras.