The Canon EOS 1Ds is still the leader in digital camera technology just because of its salient features which are mentioned as follows. 121 zone evaluative metering 245 point Area Autofocus 3The resolution is 11.4 megapixels. 4Dynamic Mirror Damping which is also called Active Mirror Control. This facility is for very short viewfinder blackout. 5The delivering image resolution is as high as 4,064 x 2,704 pixels. 6The sensor is CMOS sensor. 7The Canon EOS 1Ds is equipped with TTL optical view finder. This facilitates 100 percent field of view. There is display of full information. 8There is no focal length multiplier. This camera is equipped with full frame sensor. With this camera one can shoot true wide angle. 9The autofocus area is area ellipse. There are two types of modes, one is One-Shot AF and the other is Al Servo AF modes. 10The mounting of lens is compatible with the Canon EF lenses 11The shutter and the aperture can be prioritized. 12The Program AE can be shifted. 13The depth of the field AE can be changed. 14The speed of the shutter varies from 1/8000 second to 30 seconds. 15The bulb mode is programmed for unlimited exposure 16The sensitivity equivalents can vary from ISO 50 to 1250.The default range is from 100 to 1250. 17The evaluative metering system has 21 zones. 18There is a menu option to expand by 50 setting. 19The other metering systems that are available are partial (large spot), center weighted, multi-spot, spot and FEL. The spot metering system is both AF Area Linked and Center Spot Linked. FEL stands for Flash exposure lock. 20There is auto exposure bracketing option along with ISO option. 21The White balance setting can be adjusted by the used with the help of 10 modes. There is a white balance bracketing option too. 22If you want to connect an electronic flash there is a PC Socket. 23If you want to connect an external flash unit there is a hot shoe. 24For the purpose of image review and playback there is a 2.0 inch LCD monitor 25The color space options include s RGB and Adobe RGB 26The camera is also equipped with continuous shooting mode. 27There are 21 functions that can be customized. 28This camera has the capability of recording the sound. 29Three groups of image setting can be downloaded from a computer. 30CompactFlash Type I or II or Microdrive is used to store the images 31The format of the image file is usually either RAW or JPEG. 32For facilitating the computer host connection there is IEEE-1394 "FireWire" interface with high speed. 33The remote control is optional accessory. 34The design of the body is waterproof