As well as being compared against other pro DSLRs, the Canon EOS-1Ds Mark III is also often compared to mirrorless, entry-level DSLRs and boutiques. The Canon EOS-1Ds Mark III's top rivals come from Canon (such as the EOS 5D Mark II and the EOS 1D Mark III) and Nikon (such as the D600 and the D5)

compared toPro DSLR competitors

Generally, some of the advantages of the Canon 1Ds Mark III compared to other pro DSLR competitors include: it slightly larger viewfinder (0.76x vs 0.61x), takes slightly higher resolution photos (21 MP vs 16 MP), has much less shutter lag (69 ms vs 206 ms), has a significantly longer battery life (1800 shots vs 980 shots) and has more storage slots (2 vs 1).

However, on average it doesn't record movies (none vs 1080p @ 30fps), has a slightly smaller screen (3" vs 3.2"), has a significantly lower resolution screen (230k dots vs 920k dots), doesn't shoot as fast continuously (5 fps vs 10 fps) and has much more startup delay (500 ms vs 100 ms).

Canon EOS 5D Mark II

Canon EOS 5D Mark II
1 year newer
$2,311 24-105mm lens

Significant advantages of the 5D Mark II (vs the 1Ds Mark III)

  • Much higher resolution screen: 920k dots vs 230k dots
  • Faster autofocus: Phase detection vs Contrast detection
  • Much smaller: Professional size (152×114×75 mm) vs Large (150×160×80 mm)

Significant disadvantages of the 5D Mark II (vs the 1Ds Mark III)

  • Much shorter battery life: 850 shots vs 1800 shots
  • Significantly fewer focus points: 9 vs 45
  • Has fewer storage slots: 1 vs 2

common strengths of the 5D Mark II and 1Ds Mark III

  • None found

Canon EOS 1D Mark III

Canon EOS-1D Mark III
5 months older
$4,399 (body only)

Significant advantages of the 1D Mark III (vs the 1Ds Mark III)

  • Shoots much faster: 10 fps vs 5 fps
  • Faster autofocus: Phase detection vs Contrast detection
  • Longer battery life: 2200 shots vs 1800 shots

Significant disadvantages of the 1D Mark III (vs the 1Ds Mark III)

  • Much lower true resolution: 10.1 MP vs 21 MP
  • Much smaller viewfinder: 0.61x vs 0.76x

common strengths of the 1D Mark III and 1Ds Mark III

  • Very long battery life: 2200 shots vs 1800 shots
  • Multiple storage slots: 2 vs 2

Canon EOS 1D Mark IV

Canon EOS-1D Mark IV
2 years newer
$5,383 (body only)

Significant advantages of the 1D Mark IV (vs the 1Ds Mark III)

  • Shoots much faster: 10 fps vs 5 fps
  • Much higher resolution screen: 920k dots vs 230k dots
  • Faster autofocus: Phase detection vs Contrast detection

Significant disadvantages of the 1D Mark IV (vs the 1Ds Mark III)

  • Much smaller viewfinder: 0.59x vs 0.76x
  • Significantly lower true resolution: 16 MP vs 21 MP

common strengths of the 1D Mark IV and 1Ds Mark III

  • Very long battery life: 1500 shots vs 1800 shots
  • Multiple storage slots: 2 vs 2

Canon EOS 5D Mark III

Canon EOS 5D Mark III
4 years newer
$2,300 (body only)
$2,844 50mm lens

Significant advantages of the 5D Mark III (vs the 1Ds Mark III)

  • Much higher resolution screen: 1,040k dots vs 230k dots
  • Significantly larger screen: 3.2" vs 3"
  • Faster autofocus: Phase detection vs Contrast detection

Significant disadvantages of the 5D Mark III (vs the 1Ds Mark III)

  • Much shorter battery life: 950 shots vs 1800 shots

common strengths of the 5D Mark III and 1Ds Mark III

  • Multiple storage slots: 2 vs 2

Canon EOS 1D X

Canon EOS 1D X
4 years newer
$3,780 (body only)

Significant advantages of the 1D X (vs the 1Ds Mark III)

  • Shoots much faster: 14 fps vs 5 fps
  • Much higher resolution screen: 1,040k dots vs 230k dots
  • Significantly larger screen: 3.2" vs 3"

Significant disadvantages of the 1D X (vs the 1Ds Mark III)

  • Larger: Large (158×164×83 mm) vs Large (150×160×80 mm)
  • Thicker: 3.3" vs 3.1"

common strengths of the 1D X and 1Ds Mark III

  • Above average viewfinder size: 0.76x vs 0.76x
  • Very long battery life: 1500 shots vs 1800 shots
  • Multiple storage slots: 2 vs 2

Canon EOS 6D

Canon EOS 6D
4 years newer
$999 - $1,499 (body only)
$1,330 - $1,899 24-105mm lens

Significant advantages of the 6D (vs the 1Ds Mark III)

  • Much higher resolution screen: 1,040k dots vs 230k dots
  • Faster autofocus: Phase detection vs Contrast detection
  • Much smaller: Professional size (145×111×71 mm) vs Large (150×160×80 mm)

Significant disadvantages of the 6D (vs the 1Ds Mark III)

  • Much shorter battery life: 980 shots vs 1800 shots
  • Significantly fewer focus points: 11 vs 45
  • Has fewer storage slots: 1 vs 2

common strengths of the 6D and 1Ds Mark III

  • None found

compared toMirrorless interchangeable-lens competitors

Generally, some of the advantages of the Canon 1Ds Mark III compared to mirrorless interchangeable-lens competitors include: it has higher quality type of viewfinder (pentaprism vs digital), much more lenses available (165 lenses vs 92 lenses), has a much longer battery life (1800 shots vs 350 shots) and has more storage slots (2 vs 1).

However, on average it doesn't record movies (none vs UHD @ 30fps), has a much lower resolution screen (230k dots vs 1,230k dots), doesn't have image stabilization (none vs sensor shift), takes slightly lower resolution photos (21 MP vs 36.2 MP) and slightly lower maximum light sensitivity (1,600 ISO vs 51,200 ISO).

Sony Alpha 7 II

Sony Alpha 7 II
7 years newer
$998 (body only)
$1,198 28-70mm lens

Significant advantages of the 7 II (vs the 1Ds Mark III)

  • Much higher resolution screen: 1,230k dots vs 230k dots
  • Image stabilization:
    1. Sensor shift
    vs None
  • Has a flip-out screen

Significant disadvantages of the 7 II (vs the 1Ds Mark III)

  • Much shorter battery life: 350 shots vs 1800 shots
  • Has fewer storage slots: 1 vs 2
  • Much fewer lenses available: 92 lenses vs 165 lenses

common strengths of the 7 II and 1Ds Mark III

  • Weather sealed

Sony A7R

Sony A7R
6 years newer
$1,604 (body only)
$2,148 35mm lens

Significant advantages of the A7R (vs the 1Ds Mark III)

  • Much higher resolution screen: 921k dots vs 230k dots
  • Has a flip-out screen
  • Much higher true resolution: 36.2 MP vs 21 MP

Significant disadvantages of the A7R (vs the 1Ds Mark III)

  • Much shorter battery life: 340 shots vs 1800 shots
  • Has fewer storage slots: 1 vs 2
  • Much fewer lenses available: 92 lenses vs 165 lenses

common strengths of the A7R and 1Ds Mark III

  • Weather sealed

Sony a7 III

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10 years newer
$1,876 - $1,998 (body only)
$2,116 - $2,198 28-70mm lens

Significant advantages of the a7 III (vs the 1Ds Mark III)

  • Shoots movies: UHD @ 30fps vs None
  • Image stabilization:
    1. Sensor shift
    vs None
  • Much higher resolution screen: 921k dots vs 230k dots

Significant disadvantages of the a7 III (vs the 1Ds Mark III)

  • Much shorter battery life: 710 shots vs 1800 shots
  • Has fewer storage slots: 1 vs 2
  • Much fewer lenses available: 92 lenses vs 165 lenses

common strengths of the a7 III and 1Ds Mark III

  • Above average viewfinder size: 0.78x vs 0.76x
  • Weather sealed
  • Very long battery life: 710 shots vs 1800 shots

compared toEntry-level DSLR competitors

Generally, some of the advantages of the Canon 1Ds Mark III compared to entry-level DSLR competitors include: it much larger viewfinder (0.76x vs 0.54x), takes much higher resolution photos (21 MP vs 17.9 MP), has a weather sealed body, has much less startup delay (500 ms vs 600 ms) and has higher quality type of viewfinder (pentaprism vs pentamirror).

However, on average it doesn't record movies (none vs 1080p @ 30fps), has a much lower resolution screen (230k dots vs 1,040k dots), doesn't have image stabilization (none vs sensor shift), doesn't have a touch screen and doesn't have a screen which flips out.

Olympus E-5

Olympus E-5
3 years newer
$3,999 (body only)

Significant advantages of the E-5 (vs the 1Ds Mark III)

  • Much higher resolution screen: 920k dots vs 230k dots
  • Image stabilization:
    1. Sensor shift
    vs None
  • Much smaller: Professional size (143×117×75 mm) vs Large (150×160×80 mm)

Significant disadvantages of the E-5 (vs the 1Ds Mark III)

  • Much lower true resolution: 12.2 MP vs 21 MP
  • Much smaller viewfinder: 0.57x vs 0.76x
  • Many fewer focus points: 11 vs 45

common strengths of the E-5 and 1Ds Mark III

  • Weather sealed
  • Both have pentaprism viewfinders: Pentaprism vs Pentaprism
  • Above average viewfinder coverage: 100% vs 100%

Canon Rebel SL1

Canon Rebel SL1
5 years newer
$550 18-55mm lens

Significant advantages of the SL1 (vs the 1Ds Mark III)

  • Much higher resolution screen: 1,040k dots vs 230k dots
  • Much smaller: Prosumer size (117×91×69 mm) vs Large (150×160×80 mm)
  • Has a touch screen

Significant disadvantages of the SL1 (vs the 1Ds Mark III)

  • Much lower true resolution: 17.9 MP vs 21 MP
  • Much more shutter lag: 264 ms vs 69 ms
  • Much smaller viewfinder: 0.54x vs 0.76x

common strengths of the SL1 and 1Ds Mark III

  • None found

Canon EOS 80D

Canon EOS 80D
8 years newer
$872 - $999 (body only)
$870 - $1,149 18-55mm lens

Significant advantages of the EOS 80D (vs the 1Ds Mark III)

  • Much higher true resolution: 24 MP vs 21 MP
  • Much higher resolution screen: 1,040k dots vs 230k dots
  • Shoots movies: 1080p @ 60fps vs None

Significant disadvantages of the EOS 80D (vs the 1Ds Mark III)

  • Much smaller viewfinder: 0.59x vs 0.76x
  • Much shorter battery life: 960 shots vs 1800 shots
  • Has fewer storage slots: 1 vs 2

common strengths of the EOS 80D and 1Ds Mark III

  • Above average viewfinder size: 0.59x vs 0.76x
  • Weather sealed
  • Many focus points: 45 vs 45

compared toBoutique competitors

Generally, some of the advantages of the Canon 1Ds Mark III compared to boutique competitors include: it has a weather sealed body, has a much longer battery life (1800 shots vs 250 shots), has interchangeable lenses, has higher quality type of viewfinder (pentaprism vs digital) and has more storage slots (2 vs 1).

However, on average it has a slightly smaller screen (3" vs 3.2"), has a much lower resolution screen (230k dots vs 2,100k dots), is much larger (large (150×160×80 mm) vs prosumer size (133×85×70 mm)), takes slightly lower resolution photos (21 MP vs 30.1 MP) and significantly lower maximum light sensitivity (1,600 ISO vs 102,400 ISO).

Canon EOS RP

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11 years newer
$1,299 - $1,699

Significant advantages of the EOS RP (vs the 1Ds Mark III)

  • Has a touch screen
  • Much smaller: Prosumer size (133×85×70 mm) vs Large (150×160×80 mm)
  • Significantly higher resolution screen: 1,040k dots vs 230k dots

Significant disadvantages of the EOS RP (vs the 1Ds Mark III)

  • Much shorter battery life: 250 shots vs 1800 shots
  • Built-in lens only
  • Has fewer storage slots: 1 vs 2

common strengths of the EOS RP and 1Ds Mark III

  • None found

Canon EOS R

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11 years newer
$1,994 - $2,299

Significant advantages of the EOS R (vs the 1Ds Mark III)

  • Much higher resolution screen: 2,100k dots vs 230k dots
  • Has a touch screen
  • Significantly smaller: Professional size (136×98×84 mm) vs Large (150×160×80 mm)

Significant disadvantages of the EOS R (vs the 1Ds Mark III)

  • Much shorter battery life: 370 shots vs 1800 shots
  • Built-in lens only
  • Has fewer storage slots: 1 vs 2

common strengths of the EOS R and 1Ds Mark III

  • Great battery life: 370 shots vs 1800 shots
  • Fast max shutter speeds: 1/8000 of a second vs 1/8000 of a second