Monday, August 20, 2007
Canon U.S.A. Releases 21.1-Megapixel, Full-Frame EOS-1Ds Mark III Digital SLR
Advanced Autofocus Technology
The EOS-1Ds Mark III autofocus system - first introduced earlier this year on the EOS-1D Mark III Digital SLR - has 45 AF points including 19 high-precision cross-type points and 26 Assist AF points. This new array allows the 19 cross-type points to be divided into groups of nine inner and nine outer focusing points plus a center point, which makes picking an individual focusing point much faster and easier than going through all 45. During manual AF point selection, the AF point area is expandable in two stages via Custom Function control.
At the request of sports and wildlife photographers, a new micro-adjustment feature allows for very fine changes in the AF point of focus for each lens type in use, along with the addition of adjustable focus-tracking sensitivity as another sophisticated new AF feature. Other new components in the AF system include the reconfigured concave submirror and the secondary image formation lens, both products of Canon's vast expertise in optical engineering. Finally, the low-light sensitivity of the new AF sensor has been doubled to EV-1 for superior performance, compared with earlier EOS digital SLRs.
One of the dynamic innovations incorporated into new EOS Digital SLRs - and optimized for professional shooters on the EOS-1Ds Mark III Digital SLR - is Canon's Live View shooting mode which provides photographers with an expanded and exceedingly convenient set of shooting options beyond the conventional SLR through-the-lens viewing. Framing and shooting subjects using the camera's LCD screen affords the shooter the same 100 percent field of view provided by the optical viewfinder - this is a full-frame digital SLR after all - but Live View has the added advantage of allowing the image to be more easily composed on the camera's bright and brilliant 230,000-pixel, three-inch LED screen. Additionally, the LCD-viewed image can be magnified by five or ten times in order to ensure that the shot is optimally focused.
Live View is at its best during tripod shooting, particularly for close-up photography where precise focusing is imperative. As a side benefit, the Live View shooting mode helps to reduce vibration by lifting the reflex mirror out of the optical path well in advance of the exposure, improving image quality at slow shutter speeds. Additionally, as the release time lag is miniscule, even instantaneous movements like a bird taking flight can be readily captured. The shutter charge sound can be delayed and made quieter than normal in Live View mode to avoid spooking wildlife or disturbing people nearby with unwanted camera sounds.
If a user is going to be several feet away from the camera, such as in some studio settings, the EOS-1Ds Mark III can be connected by cable to a computer via its USB 2.0 High-Speed interface. The camera can also be operated remotely at distances up to 492 feet with the assistance of the optional Wireless File Transmitter WFT-E2A which allows users to view images directly off the camera's sensor in virtually real-time, with the ability to adjust many camera settings quickly and easily.
Easy to read, even in outdoor conditions such as bright sunlight, the EOS-1Ds Mark III Digital SLR camera features a three-inch, 230,000-pixel wide angle LCD display screen. The TFT color liquid-crystal monitor features seven user-settable brightness levels and a wide, 140-degree viewing angle, both horizontally and vertically. An added advantage of the large, three-inch display size is the ability to utilize a larger font size for text, making it easier to read setting and menu options on the screen.
Canon extends its "ease-of-reading" policy to the EOS-1Ds Mark III's viewfinder as well. Bright and clear with zero distortion and a 100 percent picture coverage and a magnification factor of .75x, it is the finest viewfinder ever placed in an EOS camera.
EOS Integrated Cleaning System
Another first for a professional digital SLR of this caliber is Canon's complete dust management solution, called the EOS Integrated Cleaning System. The new CMOS image sensor is designed with a lightweight infrared absorption glass cover that vibrates for 3.5 seconds when the camera is turned on or off. This brief delay can be cancelled immediately upon start-up by pressing the shutter button half way. Dust that has been shaken or blown loose of the sensor is trapped by adhesive surfaces surrounding the sensor unit housing, preventing the problematic particles from reattaching themselves to the filter when the camera moves.