NEW YORK, N.Y., September 9, 2009 – Mark Schubin, winner of multiple Emmy awards and a fellow of the Society of Motion Picture and Television Engineers, is now sharing his world-renowned video-technology expertise with, the premiere online site for information about all types of HD video cameras, lenses, and accessories. In a free video at, Schubin explains the relationship between HD camera-imager size and HD video picture quality.

“There’s an extraordinary range of HD cameras out there, from little tiny ones that cost about $100, way up to digital cinematography models,” Schubin says in the video’s introduction. “They all look really good...but you can’t really expect something that costs $100 to provide the same quality as something that costs a quarter of a million dollars. There are many of the important differences relates to the size of the sensor, the size of the image that is formed inside the camera from which everything else derives.”

Schubin then proceeds to elaborate on this point and to explain how related factors such as sensitivity, signal-to-noise ratio, HD dynamic range, depth of field, wide-angle lenses, zoom ratios, and optical aberrations all play a role in determining HD camera image quality. “All things being equal,” Schubin concludes, “the larger the video-imager format, the better the video is going to look.”

Experts at concur, noting that although HD cameras with 1/3-inch (and even smaller) imagers are proliferating among consumers, prosumers, and even some professional users, HD cameras with 2/3-inch and larger CCD and CMOS camera-imagers continue to dominate in such premium-quality production sectors as televised sports, documentaries, network program production, and digital cinematography.

Since its launch less than a year ago, has become the premier HD camera information site for all levels of interest. In addition to its extensive information on HD cameras, lenses, and accessories for broadcast, professional, and digital cinematography, also features a consumer section with extensive data and informative videos on all major prosumer and consumer brands of HD camcorders and digital photography cameras. Also included are: an interactive HD Lens Selector and Learning Center video tutorials from such experts as Canon Broadcast national marketing executive Larry Thorpe, Digital Cinema Society president James Mathers, and Goodman’s Guides author Robert Goodman.

About is the premier source for broadcast, professional and consumer HD Cameras and Camcorders. The site regularly features exclusive video interviews, product-introduction videos, reviews, a video-rich Learning Center, an Interactive Lens Selector, pertinent news, and more.