What is the Difference Between Canon EOS 1Ds Mark III and EOS 1D Mark IV?

The Canon EOS 1Ds Mark III and EOS 1D Mark IV are both professional DSLR cameras, but they have some key differences:

1. Sensor: The 1Ds Mark III has a full-frame sensor, while the 1D Mark IV has an APS-C sensor.
2. Megapixels: The 1Ds Mark III has a 20.1MP main camera sensor, while the 1D Mark IV has a 16.1MP main camera sensor.
3. Screen: Both cameras have a 3-inch rear screen, but the 1D Mark IV has a higher resolution of 920,000 dots, while the 1Ds Mark III has 230,400 dots.
4. Autofocus System: Both cameras have a 45-point autofocus system, but the 1D Mark IV includes 39 cross-type sensors for improved performance.
5. Build: Both cameras have a weather-sealed, magnesium alloy body.
6. Shutter Life: The 1D Mark IV has a shutter life of 300,000 cycles, while the 1Ds Mark III has the same rating.
7. ISO: The 1D Mark IV is about half a stop better at higher ISOs compared to the 1Ds Mark III.
8. Continuous Shooting Speed: The 1D Mark IV can shoot at up to 10 frames per second (fps), while the 1Ds Mark III can shoot at up to 5 fps.
9. Video Recording: Both cameras can record video, but the 1D Mark IV includes a higher quality option.

Overall, the Canon EOS 1Ds Mark III offers a higher resolution full-frame sensor, while the EOS 1D Mark IV has better autofocus, higher ISO performance, and a faster continuous shooting speed. Depending on your specific needs and preferences, either camera may be suitable for your photography requirements.

Comparative Table: Canon EOS 1Ds Mark III vs EOS 1D Mark IV

Here is a table comparing the differences between the Canon EOS 1Ds Mark III and EOS 1D Mark IV:

Please note that some specifications, such as burst depth and effective ISO range, are not available in the search results. The information in the table is derived from the search results.