The EOS-1Ds sets the standard, being a fierce competitor on image quality while retaining EOS performance. With an 11.1 million pixel full-frame CMOS sensor, the EOS-1Ds is the first Canon digital SLR to use the entire line of Canon autofocus lenses without a conversion factor. This provides wide-angle photography achieved on traditional SLR film bodies, and tremendous image files. The EOS-1Ds has outstanding performance features such as fast 45-point AF, 3 frames per second for 10 consecutive frames, a 5-mode 21-zone metering systems, 10 modes of white balance and 5 modes of color options. It is capable of simultaneous RAW and JPEG recording, utilizes Canon's advanced flash technologies, including E-TTL wireless autoflash, and is able to utilize powerful software utilities for both Mac OS and Windows.
The 1DS features built in 30 second sound recording in WAV format for voice narration, which can be useful in the field when pen and paper isn't practical. The Enlargement Mode (P.Fn-30) allows magnified viewing of images on the camera's LCD. When the functions is ON and a picture is taken, a small JPEG image is created and saved within the main image file. By pressing the display button, the JPEG image is displayed on the LCD, with a navigator at the bottom right that allows selection of the area to be magnified. This feature enables users to check images for camera movement, focusing accuracy, facial expression, etc.