Updated (February, 2011): Compare the Canon EOS 40D vs Canon Rebel T3i

Canon EOS 40D
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Canon EOS 40D

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Reasons to buy the Canon EOS 40D

Continuous shooting
 Rapid fire
6.5 fps
Viewfinder
 Great viewfinder
Pentaprism
Shutter lag
 Barely any delay taking photos
128 ms shutter lag
Battery life
 Great battery life
1100 shots
 

Reasons to buy the Canon Rebel T2i

Screen resolution
 High resolution screen
1,040k dots
Supports 24p
 24p movies
For that film look
External mic jack
 External mic jack
Record higher quality audio with a microphone
Size
 Really small
Prosumer size 129x98x62 mm
 
Differences | Recommendations | Cast your vote | Similarities | Competitors | Appearance | Discussion

differences

Advantages of the Canon 40D

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Shutter lag Significantly less shutter lag 128 ms vs 252 ms
Help
 Around 50% less delay when taking photos
Battery life Longer battery life 1100 shots vs 440 shots
Help
 2.5x more shots per battery charge
Continuous shooting Shoots faster 6.5 fps vs 3.7 fps
Help
 Around 80% faster continuous shooting
Viewfinder Has a pentaprism viewfinder Pentaprism vs Pentamirror
Help
 Pentaprism viewfinders are typically brighter
Viewfinder size Larger viewfinder 0.59x vs 0.54x
Help
 Around 20% larger viewfinder
Cross type focus points More cross-type focus points 9 vs 1
Help
 Grab focus in difficult situations
Fastest shutter speed Much faster max shutter speed 1/8000s vs 1/4000s
Help
 2x faster max shutter speed
Canon EOS 40D Learn more about
the Canon 40D

Advantages of the Canon T2i

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Screen resolution Much higher resolution screen 1,040k dots vs 230k dots
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 More than 4.5x higher resolution screen
Movie format Shoots movies 1080p @ 30fps vs None
Help
 Shoots Full HD (1080p) video as well as still pictures
True resolution Significantly higher true resolution 17.9 MP vs 10.1 MP
Help
 Capture around 80% more detail in your photos
Dynamic range More dynamic range 11.5 EV vs 11.3 EV
Help
 0.2 f-stops more dynamic range
Overall image quality Slightly better image quality 66.0 vs 64.0
Help
 Almost the same
Size Smaller 129x98x62 mm vs 146x108x74 mm
Help
 More than 30% smaller
Thickness Much thinner 2.4" vs 2.9"
Help
 Around 20% thinner
Light sensitivity Better maximum light sensitivity 6,400 ISO vs 1,600 ISO
Help
 The T2i's maximum light sensitivity is 2 f-stops better
Weight Lighter 530 g vs 822 g
Help
 Around 40% lighter
Light sensitivity (boost) Better boost ISO 12,800 ISO vs 3,200 ISO
Help
 The T2i's boost ISO is 2 f-stops better
Canon EOS Rebel T2i Learn more about
the Canon T2i
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recommendations

Which camera do we recommend? Relative to the best recent DSLRs, and ignoring price

Canon EOS 40D Canon EOS 40D 58

vs
57 Canon Rebel T2i Canon EOS Rebel T2i
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    Style
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        similarities

        Compared to recent DSLRs

        Common Strengths Common Weaknesses
        Lens availability Many lenses available Help
        197 lenses
        Startup delay Minimal startup delay Help
        400 ms startup delay
        Thickness Thin Help
        40D:2.9"
        T2i:2.4"
        Built-in flash Each has a built-in flash Help
        External flash not needed
        Viewfinder coverage Below average viewfinder coverage Help
        95%
        Storage slots Fewer storage slots Help
        1
        HDR Neither has in-camera HDR Help
        You could do HDR manually
        Autofocus No video autofocus Help
        Manual focus only
        Light sensitivity (boost) Poor boost ISO Help
        40D:3,200 ISO
        T2i:12,800 ISO
        Weather sealed Neither is weather sealed Help
        Need to shelter it from weather
        Focus points Few focus points Help
        9
        Sensor size Very small sensors Help
        40D:APS-C 22.2x14.8mm
        T2i:APS-C 22.3x14.9mm
        Light sensitivity Poor maximum light sensitivity Help
        40D:1,600 ISO
        T2i:6,400 ISO
        Dynamic range Poor dynamic range Help
        40D:11.3 EV
        T2i:11.5 EV
        Screen flips out No flip-out screens Help
        Less flexible
        True resolution Capture low resolution images Help
        40D:10.1 MP
        T2i:17.9 MP
        Image stabilization No image stabilization Help
        Risk of blur
        Color depth Poor color depth Help
        22.1 bits
        Overall image quality Low image quality Help
        40D:64.0
        T2i:66.0
        Low light performance Above average noise at high ISO Help
        40D:703 ISO
        T2i:784 ISO

        dxomark

        DXOMark

        competitors

        Shared Competitors

        Advantages

        Disadvantages
        Canon Rebel T3i

        Canon Rebel T3i

        Entry-level DSLR

        $499 - $749 body only

        $550 - $600 with 18-55mm lens
        Screen flips out Has a screen which flips out
        Fastest shutter speed Has a slower max shutter speed
        Thickness Is thicker
        Compare the Rebel T3i vs the EOS 40D
        Compare the Rebel T3i vs the Rebel T2i
        Canon EOS 60D

        Canon EOS 60D

        Pro DSLR

        $699 - $871 body only

        $999 - $1,150 with 18-135mm lens
        Weather sealed Has a weather sealed body
        Screen flips out Has a screen which flips out
        Thickness Is thicker
        Weight Is slightly heavier
        Compare the EOS 60D vs the EOS 40D
        Compare the EOS 60D vs the Rebel T2i
        Canon Rebel T3

        Canon Rebel T3

        Entry-level DSLR

        $276 - $298 body only

        $385 - $450 with 18-55mm lens
        Fastest shutter speed Has a slower max shutter speed
        Thickness Is thicker
        Compare the Rebel T3 vs the EOS 40D
        Compare the Rebel T3 vs the Rebel T2i
        Nikon D3100

        Nikon D3100

        Entry-level DSLR

        $389 - $427 with 18-55mm lens
        Movie continuous focus Can focus continuously while recording movies
        Autofocus Focuses automatically while shootting video
        Fastest shutter speed Has a slower max shutter speed
        Thickness Is thicker
        Compare the D3100 vs the EOS 40D
        Compare the D3100 vs the Rebel T2i
        Nikon D3200

        Nikon D3200

        Entry-level DSLR

        $497 with 18-55mm lens
        Overall image quality Has significantly better image quality
        Color depth Has significantly more color depth
        Fastest shutter speed Has a slower max shutter speed
        Thickness Is thicker
        Compare the D3200 vs the EOS 40D
        Compare the D3200 vs the Rebel T2i
        Canon Rebel T5i

        Canon Rebel T5i

        Entry-level DSLR

        $599 body only

        $749 - $1,148 with 18-55mm lens
        Touch screen Has a touch screen
        Screen flips out Has a screen which flips out
        Fastest shutter speed Has a slower max shutter speed
        Thickness Is thicker
        Compare the Rebel T5i vs the EOS 40D
        Compare the Rebel T5i vs the Rebel T2i
        Canon EOS Rebel T1i

        Canon Rebel T1i

        Entry-level DSLR

        $999 body only

        $400 with 18-55mm lens
        Fastest shutter speed Has a slower max shutter speed
        External mic jack Lacks and external mic jack
        Compare the Rebel T1i vs the EOS 40D
        Compare the Rebel T1i vs the Rebel T2i

        Canon EOS 40D Competitors

        Advantages

        Disadvantages

        No significant competitors found that are specific to the Canon EOS 40D.

        Canon EOS Rebel T2i Competitors

        Advantages

        Disadvantages

        No significant competitors found that are specific to the Canon EOS Rebel T2i.

        appearance

        Canon EOS 40D Canon EOS Rebel T2i
        Canon EOS 40D Canon EOS Rebel T2i
        Canon EOS 40D Canon EOS Rebel T2i

        discussion

        Canon EOS 40D
        EOS 40D
        Canon

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        Canon EOS Rebel T2i
        Rebel T2i
        Canon

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