The EOS-1Ds Mark III becomes the seventh Canon professional EOS-1D series digital SLR, although only the third of the 's' suffix sub-category which indicates a full frame sensor. Three years since the last EOS-1Ds, the Mark II, the Mark III pushes digital SLR resolution over the twenty megapixel barrier with specifically twenty-one-point-one million pixels (5616 x 3744) on its 36 x 24 mm (full 35 mm frame) sensor. Canon also claim to have increased the 'light gathering efficiency' of the sensor by reducing the amount of (wasted) space between microlenses, hence despite the resolution increase the Mark III still provides sensitivity up to ISO 3200 (with boost enabled).
As well as increasing resolution Canon has pushed continuous shooting up a step with five frames per second over the Mark II's four frames per second. This means that at full speed the two DIGIC III image processors are dealing with an impressive 185 MB/sec. Other improvements include the larger screen, Live View, a fourteen-bit A/D converter and fourteen-bit RAW files, UDMA Compact Flash support (up to 45 MB/sec) and a whole range of features (such as dual storage slots and Picture Styles) inherited from the EOS-1D Mark III.
Key features
- 21 Megapixel full frame (35mm) CMOS sensor
- 5 fps continuous shooting for up to 56 frames
- Dual “DIGIC III” processors
- Highlight Tone Priority
- Auto focus system with 19 cross type sensors and 26 focus assist points
- EOS Integrated Cleaning System
- ISO 100-1600 (expandable to L:50 H:3200)
- 3.0” 230K pixel LCD with Live View mode
- Redesigned viewfinder now wider and brighter
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