Canon EOS
40D
 vs
Canon EOS Digital
Rebel XSi

General

 Canon EOS 40D Canon EOS Digital Rebel XSi
Brand
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 Canon Canon
Lowest price
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 $650.00 $467.50
Announced
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 August, 2007 January, 2008

Sensor
Type
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 CMOS CMOS
Size
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 APS-C 22.2x14.8mm APS-C 22.2x14.8mm
Crop factor
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 1.6x 1.6x
Megapixels
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 10.1 MP 12.2 MP
Light sensitivity
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 1,600 ISO 800 ISO
Light sensitivity (boost)
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 3,200 ISO 1,600 ISO
Sensor cleaning
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 Unknown Yes

Sensor (Advanced)
True resolution
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 10.1 MP 12.2 MP
Native resolution
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 3888 x 2592 4272 x 2848
Pixel size
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 32.6 µm² 27 µm²

Screen
Type
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 LCD LCD
Size
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 3.0" 3.0"
Resolution
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 230k dots 230k dots
Touch screen
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 No No
Flips out
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 No No
Live view
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 Yes Yes

Lenses
Lens availability
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 162 lenses 162 lenses
Lens focus motor
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 Yes Yes
Lens mount
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 Canon EF Canon EF

Form factor
Size
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 146x108x74 mm 129x98x62 mm
Depth
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 2.9" 2.4"
Weight
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 822 g 524 g
Interchangeable lenses
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 Yes Yes
Waterproof
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 No No
Weather sealed
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 No No

Viewfinder
Type
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 Pentaprism Pentamirror
Viewfinder size
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 0.59x 0.54x
Coverage
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 95% 95%

Movies
Format
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 None None
Autofocus
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 None None

Features
Panorama
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 No No
HDR
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 No No
3D
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 No No
Image stabilization
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 None None
Supports RAW
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 Yes Yes
GPS
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 No No

Performance
Startup delay
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 Unknown 400 ms
Shutter lag
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 Unknown 160 ms
Battery life
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 Unknown 500 shots
Continuous shooting
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 6.5 fps 3.5 fps

Focus system
Autofocus
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 Contrast detection Phase detection
Focus points
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 Unknown 9
Cross type focus points
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 Unknown 1

Shutter
Max
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 1/8000s 1/4000s
Min
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 30s 30s

Flash
Built-in flash
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 Yes Yes
Popup
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 Yes Yes
External connection
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 Yes Yes

Storage
Storage slots
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 1 1
Supported formats
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 CompactFlash (Type II)
CompactFlash (Type I)		 SD
MMC
SDHC

DXO Mark Scores
Image quality
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 64.0 61.0
Color depth
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 22.1 bits 21.9 bits
Dynamic range
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 11.3 EV 10.8 EV
Low light performance
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 703 ISO 692 ISO