CAMERA

Canon EOS 50D Review,
Lars Rehm and Richard Butler, October 2008

Review based on a production Canon EOS 50D with firmware version 1.02

Almost exactly a year after the arrival of the EOS 40D, Canon has announced the 50D, which we're assured will be a sister-model, rather than a replacement. Recent history has seen Canon release new models every 18 months-or-so but it's been a busy year with newcomers such as the Nikon D300 getting a lot of attention in the 40D's keen-amateur/professional segment. The 50D is essentially a 40D body wrapped around a newly-developed 15 megapixel sensor that finally rectifies the situation in which Canon's XXD range trailed the company's entry-level line, in pixel terms. Canon is claiming that the new sensor's design (new manufacturing processes, redesigned photo diodes and micro lenses) mean that despite the higher resolution image noise has improved, something we'll be putting to the test later.

The other big change is the inclusion of a new, high-resolution LCD screen. 920,000 dots mean that it can convey 640 x 480 RGB pixels, making it effectively a VGA standard monitor. Three anti-reflection layers built into the screen do their best to keep it useable in bright conditions, too.

There are various other changes and added features, with many of them stemming from the first appearance of the Canon's Digic 4 processor. The key differences between the 50D and 40D are detailed below.

Model line history

Model	Announced	Effective pixels	Auto focus	Continuous (JPEG)	LCD monitor
EOS D30	Apr 2000	3.1 mp	3 point	3.0 fps, 3 frames	1.8"
EOS D60	Feb 2002	6.3 mp	3 point	3.3 fps, 8 frames	1.8"
EOS 10D	Feb 2003	6.3 mp	7 point	3.3 fps, 9 frames	1.8"
EOS 20D	Aug 2004	8.2 mp	9 point	5.0 fps, 23 frames	1.8"
EOS 30D	Feb 2006	8.2 mp	9 point	5.0 / 3.0 fps, 30 frames	2.5"
EOS 40D	Aug 2007	10.1 mp	9 point	6.5 / 3.0 fps, 75 frames	3.0" Live view
EOS 50D	Aug 2008	15.1 mp	9 point	6.3 / 3.0 fps, 60/90 frames	3.0" HR Live view

Canon EOS 50D vs. EOS 40D feature and specification differences

	Canon EOS 50D	Canon EOS 40D
Sensor	• 15.0 million effective pixels	• 10.1 million effective pixels
Image sizes	• 4752 x 3168 • 3456 x 2304 • 2353 x 1568	• 3888 x 2592 • 2816 x 1880 • 1936 x 1288
RAW files	• CR2 format, 14-bit • RAW full resolution • sRAW1 (7.1 MP) • sRAW2 (3.8 MP)	• CR2 format, 14-bit • RAW full resolution • sRAW (2.5 MP)
Image processor	DIGIC 4	DIGIC III
Sensitivity	ISO 100 to 3200, extendable to H1 (6400) and H2 (12800).	ISO 100 to 1600, extendable to 3200.
Auto ISO	ISO 100 to 1600	ISO 100 to 800
Noise reduction	Four levels	On/Off
Auto lighting optimizer	Four levels	On/Off
AF adjustment	• All lenses or up to 20 individual lenses • +/- 20 steps	No
Viewfinder info	Now includes Auto Lighting Optimizer icon
LCD monitor	• 3.0 " TFT LCD • 920,000 dots	• 3.0 " TFT LCD • 230,000 dots
Live view AF	• Quick mode (Phase detect) • Live view mode (Contrast detect) • Face detect (Contrast detect)	Phase detect
Peripheral illumination correction	• Profiles of 26 lenses includes • space provided for 14 extra profiles
User 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 1 • 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 1 • Camera user settings 2 • Camera user settings 3
High-speed continuous	• 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 UI	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
Menu languages	25	18
Custom functions	25	24
Weight	• No battery: 730 g (1.6 lb) • With battery: 822 g (1.8 lb) (measured)	• No battery: 740 g (1.6 lb) • With battery: 836 g (1.8 lb) (measured)