Tuesday, October 16, 2007
Olympus Delivers E-3 Digital SLR
The secret to the camera's high-speed focusing is a unique Twin cross type (fully biaxial) 11 point AF sensor, based on proprietary Olympus micro-sensing technologies, that achieves equally effective performance on both the vertical and horizontal axis. With most biaxial sensors, performance on the vertical and horizontal axes is not equal, and there is often a perceived difference in response time when using different lenses. However, unlike systems that respond at nominally lower f-stop values simply by boosting sensitivity, the E-3's AF sensor features a totally redesigned hounds tooth-pattern phase detection sensor layout that uses micro-lamination technologies to achieve superior real-world performance.
AF accuracy is further ensured by precise alignment of the optical axis from the lens to the AF phase detection sensors, and accurate mounting of the sensors within the AF unit. The AF unit used in the E-3 is made of high-tensile engineering plastic, which is further protected by the camera's high-rigidity magnesium body. In addition, data from a dedicated temperature sensor is used to compensate for changes in operating temperature.
The 11 AF target points on the E-3 can be selected to work individually or dynamically in combination with adjacent target points. Once a photographer knows the general direction of a moving subject - a Formula One racecar zooming around a track for example - the AF area can be selected based on the anticipated motion to maintain accuracy.
The newly developed Olympus Supersonic Wave Drive (SWD) lenses on the E-3 enable auto focusing at ultra-high speed with precise and quiet operation. Quietness is essential when shooting in a situation where silence is truly golden, such as photographing exotic birds up close in the wild or musicians at a classical music quartet. But this technology truly shines in combination with three new Olympus ZUIKO DIGITAL SWD lenses that employ Supersonic Wave Drive motor technology inside: the ED 12-60mm f2.8-4.0 SWD (24-120mm equivalent); ED 50-200mm f2.8-3.5 SWD (100-400mm equivalent), and the ED 14-35mm f2.0 SWD (28-70mm equivalent). The new ED 50-200mm f2.8-3.5 SWD lens focuses twice as fast as the previous ZUIKO DIGITAL lens with that focal length, and the new ED 14-35mm f2.0 joins the existing 35-100mm f2.0 (70-200mm equivalant) as the brightest lenses in their class. Mechanical focusing is also available for easy and accurate manual focusing by hand.
The E-3 can capture images at the highest image-quality setting at a rate of 5 frames per second. With shutter speeds of up 1/8000 second, it is possible to freeze action when photographing a cheetah in fast pursuit across the plain, or a fastball before it connects with the bat.
Superior Image Quality: Steady As It Goes
To prevent image blur caused by camera shake, which can occur in dim lighting or with longer telephoto lenses, the E-3 employs In-body Mechanical Image Stabilization, which compensates for camera movement up to 5 steps EV and delivers blur-free images taken with any of the ZUIKO DIGITAL lenses available for the camera. Moreover, built-in SWD Image Stabilization offers the advantage of image stabilization for every lens attached to the camera body, so there is no need to purchase image stabilized lenses at a premium price.
At the heart of the built-in image stabilizer unit are the Olympus-exclusive Supersonic Wave Drive motors with excellent responsiveness and control. The motors use information about camera shake gathered by a gyro sensor that detects and analyzes hand vibrations, and move the image sensor with a piezoelectric element.
The E-3's high-performance Live MOS image sensor delivers excellent dynamic range, accurate color fidelity, and a new state-of-the-art amplifier circuit to eradicate noise and capture fine image details in both highlight and shadow areas.
The camera's Live MOS image sensor is
complemented by Olympus' TruePic III Image Processor that produces
crystal clear photos using all the pixel information for each image to
provide the best digital images possible with accurate natural color,
true-to-life flesh tones, brilliant blue skies and precise tonal
expression in between. TruePic III also lowers image noise in images
shot at higher ISO settings, enabling great results in low-light