Sony Releases Cameras with Groundbreaking High-Definition Video Capabilities
Posted on Sep 24, 2011
In a highly hyped release, Sony has launched a new generation of advanced cameras aimed at photographers who want improved video capabilities. Along with a higher demand for web video content, many camera manufacturers have noticed a trend in higher demand for high quality video equipment. The Sony A77, A65, and Nex-7 models promise to enhance the amateur video-capturing experience.
So what do these new models bring to the table? The major advantage the new models possess is a sophisticated method of autofocus called phase-detection. Phase-detection autofocus used to be reserved for single lens reflex cameras (SLR) with an optical mirror. Sony has done away with the traditional mirror in favor of a semi-translucent mirror, called "SLT".
Historically, SLR cameras had to flip up the mirror and use an inferior method of autofocusing (called contrast-detection) during video capture; they retained phase-contrast ability during normal still photography. This method proved unreliable during video capture in consumer camera products. With Sony's new SLT, the mirror is somewhat translucent and does not have to flip up during video capture. Therefore, Sony can still use phase-detection while capturing video, which translates into a dramatically improved video experience for most users.
Despite the improved autofocusing of its new models, Sony's equipment does not guarantee professional quality video. High quality lenses, smooth manual focusing, and an understanding of composition and depth of field are still essential to creating video that truly reaches professional standards. However, Sony's new camera lineup promises to enhance the quality of home video and other amateur video recording.