You probably know that Canon produced an upgrade DSLR for 40D. For those who ask; “is it good enough”, “is it really better than 40D”, “Are there any major differences between 50D and 40D”. Here comes the answer;

Canon EOS 40D
Canon EOS 50D
Canon EOS 40D
Canon EOS 40D
Camera Sensor • 15.0 Megapixels • 10.1 Megapixels
Image Resolutions • 4752 x 3168
• 3456 x 2304
• 2353 x 1568
• 3888 x 2592
• 2816 x 1880
• 1936 x 1288
RAWs • CR2 format, 14-bit
• RAW full resolution
• sRAW1 (7.1 MP)
• sRAW2 (3.8 MP)
• CR2 format, 14-bit
• RAW full resolution
• sRAW (7.1 MP)
Processor DIGIC 4 DIGIC III
ISO Values ISO 100 to 3200, extendable to H1 (6400) and H2 (12800). ISO 100 to 1600, extendable to 3200.
Automatic ISO ISO 100 to 1600 ISO 100 to 800
(NR) Noise Reduction 4 levels On/Off
(ALO) Auto Lighting Optimizer 4 levels On/Off
Auto Focus Adjustment • All lenses or up to 20 individual lenses
• +/- 20 steps
No
Viewfinde Now includes Auto Lighting Optimizer icon
LCD Screen • 3.0 ” TFT LCD
• 920,000 dots
• 3.0 ” TFT LCD
• 230,000 dots
Live View • Quick mode (Phase detect)
• Live view mode (Contrast detect)

• Face detect (Contrast detect)
Phase detect
Modes • Auto
• Creative Auto
• Program AE (P)
• Shutter priority AE (Tv)
• Aperture priority AE (Av)
• Manual (M)
• Auto depth-of-field
• Portrait
• Landscape
• Close-up
• Sports
• Night portrait
• Flash off
• Camera user settings ( 2 )
• Auto
• Program AE (P)
• Shutter priority AE (Tv)
• Aperture priority AE (Av)
• Manual (M)
• Auto depth-of-field
• Portrait
• Landscape
• Close-up
• Sports
• Night portrait
• Flash off
• Camera user settings ( 3 )
Continuous Shooting • 6.3 fps
• Up to 60 JPEG Large/Fine images
• Up to 90 JPEG Large/Fine images (UDMA)
• 6.5 fps
• Up to 75 JPEG Large/Fine images
Menu Digic 4 interface Same as EOS-1D series
Connectors • USB 2.0 Hi-Speed
• Video out
• Mini HDMI connector
• N3 type wired remote control
• PC Sync flash terminal
• Communication terminal on base for WFT-E3/E3A
• USB 2.0 Hi-Speed
• Video out
• N3 type wired remote control
• PC Sync flash terminal
• Communication terminal on base for WFT-E3/E3A
Languages 25 languages 18 languages
Custom Functions 25 24
Weight • No battery: 730 g
• With battery: 822 g
• No battery: 740 g
• With battery: 836 g