Generally, some of the advantages of the Canon EOS-1D Mark IV compared to entry-level DSLR competitors include: it is significantly less noisy at high ISO (1,320 ISO vs 919 ISO), slightly higher maximum light sensitivity (12,800 ISO vs 6,400 ISO), has a weather sealed body, shoots faster continuously (10 fps vs 4 fps) and has slightly less startup delay (400 ms vs 1500 ms).
However, on average it doesn't have a screen which flips out, lacks a built in HDR feature, lacks and external mic jack, slightly fewer lenses available (125 lenses vs 162 lenses) and is older (october, 2009 vs february, 2011).
Nikon D7000
1 year newer
$1,000 (body only)
$1,100 55-200mm lens
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Significant advantages of the D7000 (vs the EOS-1D Mark IV)
- Much smaller: Professional size 132x105x77 mm vs Large 156x157x80 mm
- Has an external mic jack
- More lenses available: 169 lenses vs 125 lenses
Significant disadvantages of the D7000 (vs the EOS-1D Mark IV)
- Many fewer cross-type focus points: 9 vs 39
- Much smaller sensor: APS-C 23.6x15.6mm vs APS-H 27.9x18.6mm
- Worse boost ISO: 25,600 ISO vs 102,400 ISO
common strengths of the D7000 and EOS-1D Mark IV
- Very low noise at high ISO: 1,167 ISO vs 1,320 ISO
- Good image quality: 80.0 vs 74.0
- Full HD (1080p) video: 1080p @ 24fps vs 1080p @ 30fps
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Nikon D5100
1 year newer
$500 - $597 (body only)
$600 - $697 18-55mm lens
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Significant advantages of the D5100 (vs the EOS-1D Mark IV)
- Much smaller: Prosumer size 127x96x78 mm vs Large 156x157x80 mm
- Has an external mic jack
- Has a flip-out screen
Significant disadvantages of the D5100 (vs the EOS-1D Mark IV)
- Many fewer cross-type focus points: 1 vs 39
- Many fewer focus points: 11 vs 45
- Much smaller sensor: APS-C 23.6x15.6mm vs APS-H 27.9x18.6mm
common strengths of the D5100 and EOS-1D Mark IV
- Very low noise at high ISO: 1,183 ISO vs 1,320 ISO
- Good image quality: 80.0 vs 74.0
- Both shoot high resolution HD movies: 1080p @ 30fps vs 1080p @ 30fps
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Canon Rebel T2i
3 months newer
$544 - $949 (body only)
$649 - $867 18-55mm lens
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Significant advantages of the T2i (vs the EOS-1D Mark IV)
- Much smaller: Prosumer size 129x98x62 mm vs Large 156x157x80 mm
- Has an external mic jack
- Much lighter: 530 g vs 1,230 g
Significant disadvantages of the T2i (vs the EOS-1D Mark IV)
- Much more noise at high ISO: 784 ISO vs 1,320 ISO
- Many fewer cross-type focus points: 1 vs 39
- Much smaller sensor: APS-C 22.3x14.9mm vs APS-H 27.9x18.6mm
common strengths of the T2i and EOS-1D Mark IV
- Both shoot high resolution HD movies: 1080p @ 30fps vs 1080p @ 30fps
- High resolution screens: 1,040k dots vs 920k dots
- 24p support
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Canon Rebel T3i
1 year newer
$619 - $700 (body only)
$745 - $1,000 18-55mm lens
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Significant advantages of the T3i (vs the EOS-1D Mark IV)
- Much smaller: Professional size 133x99x79 mm vs Large 156x157x80 mm
- Has an external mic jack
- Has a flip-out screen
Significant disadvantages of the T3i (vs the EOS-1D Mark IV)
- Much more noise at high ISO: 793 ISO vs 1,320 ISO
- Many fewer cross-type focus points: 1 vs 39
- Much smaller sensor: APS-C 22.3x14.9mm vs APS-H 27.9x18.6mm
common strengths of the T3i and EOS-1D Mark IV
- Both shoot high resolution HD movies: 1080p @ 30fps vs 1080p @ 30fps
- High resolution screens: 1,040k dots vs 920k dots
- 24p support
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Pentax K-5
1 year newer
$888 - $1,129 (body only)
$1,033 - $1,283 18-55mm lens
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Significant advantages of the K-5 (vs the EOS-1D Mark IV)
- Better image quality: 82.0 vs 74.0
- Much smaller: Prosumer size 130x96x72 mm vs Large 156x157x80 mm
- Image stabilization: Sensor shift vs None
Significant disadvantages of the K-5 (vs the EOS-1D Mark IV)
- Many fewer cross-type focus points: 9 vs 39
- Many fewer focus points: 11 vs 45
- Much smaller sensor: APS-C 23.6x15.7mm vs APS-H 27.9x18.6mm
common strengths of the K-5 and EOS-1D Mark IV
- Very low noise at high ISO: 1,162 ISO vs 1,320 ISO
- Good image quality: 82.0 vs 74.0
- Full HD (1080p) video: 1080p @ 25fps vs 1080p @ 30fps
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Nikon D3100
10 months newer
$500 - $547 18-55mm lens
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Significant advantages of the D3100 (vs the EOS-1D Mark IV)
- Much smaller: Prosumer size 124x96x73 mm vs Large 156x157x80 mm
- Much lighter: 505 g vs 1,230 g
- More lenses available: 169 lenses vs 125 lenses
Significant disadvantages of the D3100 (vs the EOS-1D Mark IV)
- Many fewer cross-type focus points: 1 vs 39
- Significantly more noise at high ISO: 919 ISO vs 1,320 ISO
- Much smaller sensor: APS-C 23.1x15.4mm vs APS-H 27.9x18.6mm
common strengths of the D3100 and EOS-1D Mark IV
- Full HD (1080p) video: 1080p @ 24fps vs 1080p @ 30fps
- 24p support
- Minimal startup delay: 400 ms vs 400 ms
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