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Jan 24 2008

Comparison: Canon 450D vs 40D vs 400D

Thursday, 24 January 2008

Canon placed the new EOS 450D (Digital Rebel Xsi) right between the EOS 40D and EOS 400D both in feature and price wise. 450D sports a 12 MP CMOS sensor, 2 MP more compared to the 10 MP sensor of the 40D, and an extra contrast-detect AF mode with live view that makes the implementation much more usable. 40D is surely superior in most of the other areas but is it worth the almost $400 price difference? We prepared a comparison table for these two cameras and also added the 400D which will apparently continue to be produced and sold by Canon.

Canon 450D, 40D and 400D Comparison Table:

Brand	Canon	Canon	Canon
Type	EOS 450D (Digital Rebel Xsi)	EOS 40D	EOS 400D (Digital Rebel Xti)
Price(street)	$799	$1.150	$550
Resolution	12.40 MP	10.50 MP	10.10 MP
Maximum resolution	4272x2848	3888x2592	3888x2592
Minimum resolution	2256x1504	1936x1288	1936x1288
Sensor size	22.2x14.8mm	22.2x14.8mm	22.2x14.8mm
Sensor type	CMOS	CMOS	CMOS
Focal length multiplier	1.6x	1.6x	1.6x
ISO ratings	auto, 100, 200, 400, 800, 1600	auto, 100, 200, 400, 800, 1600, 3200	auto, 100, 200, 400 , 800, 1600
Minimum shutter (sec)	Bulb+30	Bulb+30	Bulb+30
Maximum shutter (sec)	1/4000	1/8000	1/4000
Sequence (fps)	3,5	6	3
Flash modes	anti red-eye auto fill in off slow flash	anti red-eye auto fill in off slow flash	anti red-eye auto fill in off slow flash
Storage types	SDHC Secure Digital	CompactFlash type I CompactFlash type II Microdrive	CompactFlash type I CompactFlash type II
Aperture priority	Yes	Yes	Yes
Shutter priority	Yes	Yes	Yes
Built-in flash	Yes	Yes	Yes
External flash type	Hot-shoe	Hot-shoe	Hot-shoe
Metering	Centre weighted Evaluative Spot	Centre weighted Evaluative Spot	Centre weighted Evaluative
Exposure compensation	-2EV - +2EV with 1/2 or 1/3 EV steps	-2EV - +2EV with 1/2 or 1/3 EV steps	-2EV - +2EV with 1/2 or 1/3 EVsteps
White balance	Auto Cloudy Daylight Flash Fluorescent Tungsten Shade	Auto Cloudy Daylight Flash Fluorescent Tungsten Shade User Set Color Temp.	Auto Cloudy Daylight Flash Fluorescent Tungsten Shade
Optical viewfinder	Yes Pentamirror	Yes Pentaprism	Yes Pentaprism
Magnification Ratio	0.87x 95% coverage	0.95x 95% coverage	0.80x 95% coverage
Electronic viewfinder	No	No	No
LCD display	Yes	Yes	Yes
LCD size	3-inch	3-inch	2.5-inch
LCD resolution (pixels)	230K	230K	230K
Self-timer	Yes	Yes	Yes
USB	USB 2.0 Hi-Speed	USB 2.0 Hi-Speed	USB 2.0 Hi-Speed
Video out	Yes	Yes	Yes
Firewire	No	No	No
File format	JPEG RAW RAW + JPEG	JPEG RAW, sRAW RAW + JPEG, sRAW +JPEG	JPEG RAW RAW + JPEG
Live View	Yes AF Contrast Detection	Yes	No
Energy	Li-Ion	Li-Ion	Li-Ion
Weight	475g.	740g.	510g.
Sizes (mm)	129x98x62	145.5x108x73.5	126x94x65

Read the 450D / Digital Rebel Xsi Reviews on the Web

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What about 14bits?
written by Tristan, January 25, 2008

Surely the fact that the 450D is 14bits (16384 different tones) and the other two are 8bits (256 tones) is one of the main benfits to the 450D?

The 40D is already 14-bits
written by Jordax, January 25, 2008

The 40D is already producing 14-bit images. The 400D (and most if not all of the previous EOS digitals) are 12-bit. In both cases, if you capture RAW files you get the full bit-depth of the cameras. The loss only comes when you convert to JPEG, which is limited to 8-bit images.

This applies to the 450D too - JPEG images are still only 8-bit output.

...
written by Ke, February 13, 2008

400d doesn't have spot metering.

Viewfinder
written by Android, April 17, 2008

The specs for the viewfinder size etc. is missing. This is quite important!

Errors
written by Lemming51, April 17, 2008

Storage types: Microdrive should be under the 400D column and not the 450D.
Metering: 400D has Evaluative, not "Matrix" (a Nikon term), and does not have Spot. All 3 have Partial (ie. "large spot") metering.
Exposure Compensation: The info under the 400D and 450D is incorrect. All three cameras are the same, -2EV to 2EV with 1/2 or 1/3 EV steps.
White Balance: This section is a mess. The same setting should be on the same line for each camera so that it can be easily determined where the differences are. All 3 cameras have the presets for AUTO, Daylight, Shade, Cloudy, Tungsten, White Fluorescent, and Flash. "Incandescent" under the 400D should be Tungsten. All 3 can set Custom WB, and all 3 allow WB Shift and Bracketing. The 40D allows directly setting the Kelvin color temperature, the 450D does not.
File Format: "Li-Ion" under the 400D should be corrected to "RAW-JPEG" The 40D can also save sRAW-JPEG.
Energy: Yes, all 3 use a rechargeable Li-Ion battery, but they are not the same. The 400D and 450D use a smaller-sized, lower capacity battery than the 40D.

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