Canon EOS Rebel XSi vs Nikon D800

This is a full comparison between the cameras Canon EOS Rebel XSi and Nikon D800. We compare them by looking at the categories you see below.

Manufacturing

Canon EOS Rebel XSi is manufacturered by Canon but Nikon D800 is from Nikon. Both Canon and Nikon are well known brands though.

Canon EOS Rebel XSi were released 2008 and Nikon D800 was released 2012. That is a 4 years difference. In tech, this period can be of interest since technology is always improving, etc.

Camera Released
Canon EOS Rebel XSi 2008
Nikon D800 2012

Type of camera

Both these cameras are DSLR cameras. No difference there.

Sensors / crop factor

These cameras have different sensors. Canon EOS Rebel XSi has a "Canon APS-C"-sensor while Nikon D800 has a "Nikon FX"-sensor, and their difference in sensors will also affect the crop factor and experience focal length. See the table below.

Camera Focal length, 50mm f/1.8 **
Canon EOS Rebel XSi 80 mm
Canon APS-C sensor
Crop factor/focal length multiplier by * 1.6
Nikon D800 50 mm
Full-frame sensor
No crop factor/focal length multiplier

** Experienced focal length when using a lens such as a common "50mm f/1.8"

Learn more about crop factor and focal length multiplier here:
Camera selection can affect the focal length (Canon)
Camera selection can affect the focal length (Nikon)

Resolution

Canon EOS Rebel XSi has a 12,2 MP (Megapixels) resolution while Nikon D800 has 36,3 MP. If we break down this in more detail this is the data behind the numbers:

Camera Megapixels
Canon EOS Rebel XSi 12,2 MP
12166656 pixels
4272 x 2848
Nikon D800 36,3 MP
36152320 pixels
7360 x 4912

Nikon D800 has a 197 % larger resolution than Canon EOS Rebel XSi. This could give you more details in the picture but also a possibility to crop more in the pictures, afterward while editing the pictures, if needed that is.

ISO range

Nikon D800 has a larger ISO-range than Canon EOS Rebel XSi. Nikon D800 has an ISO range that stretches from 100 to 25600 while Canon EOS Rebel XSi has 100 to 1600.

Camera ISO Range
Canon EOS Rebel XSi 100-1600
Nikon D800 100-25600

Autofocus and lens compatibility

Both of these cameras have a built-in autofocus motor. Some lenses, that support autofocus, do not have an autofocus motor of their own but this won't cause any problems with these two cameras.

Here is a complete overview of which lenses work with each camera:
Lens compatibility chart for Canon EOS Rebel XSi
Lens compatibility chart for Nikon D800

Pictures per second

Depending on what you are shooting the FPS, or frames/pictures per second, can definitely be of interest. Canon EOS Rebel XSi can shoot up to 3,5 pictures per seconds and Nikon D800 can shoot up to 6 pictures per seconds.

Camera FPS (Frames per second)
Canon EOS Rebel XSi 3,5
Nikon D800 6

Ability to record movies

It is becoming more and more popular to record movies with digital cameras.

It is only one of these two cameras that support recording movies and movie clips and that is Nikon D800. Sadly, the Canon EOS Rebel XSi does not support this.

Weight

The weight of the camera can be an extremely important factor, especially if the camera is about to be used, or carried around, for several hours at a time.

Nikon D800 weighs 900 gr (equal to 1.98 lb) which is 72% heavier than Canon EOS Rebel XSi and its 524 gr (or 1.16 lb).

Camera Weight
Canon EOS Rebel XSi 524 gr
1.16 lb
Nikon D800 900 gr
1.98 lb

Canon EOS Rebel XSi vs Nikon D800 Specs

Below you will find the complete and detailed technical specs for both Canon EOS Rebel XSi and Nikon D800, next to each other. Each category of data is a link to an article covering the subject, giving you a deeper understanding so you can better understand the strengths and weaknesses of the two camera models.

Product
Canon EOS Rebel XSi
Nikon D800
Name Canon EOS Rebel XSi Nikon D800
Manufacturer Canon Nikon
Release Date and Price
Canon EOS Rebel XSi
Nikon D800
Release Year 2008 2012
Release Date 2008-01-24 2012-02-07
MSRP 799 USD 2999 USD
Buy it today
Camera Type
Canon EOS Rebel XSi
Nikon D800
Camera Type DSLR DSLR
Sensor
Canon EOS Rebel XSi
Nikon D800
Sensor Size APS-C (approx 22.3 x 14.9 mm) Full Frame (approx 36 x 23.9 mm)
Also known as "FX"
Sensor Type CMOS CMOS
Resolution 4272 x 2848 pixels 7360 x 4912 pixels
Megapixels 12,2 MP 36,3 MP
Image Processor DIGIC 3 EXPEED 3
Image
Canon EOS Rebel XSi
Nikon D800
ISO Range 100 - 1600 100 - 25600
White Balance Presets 6 12
Custom White Balance Yes Yes
Image Stabilization No No
Image Stabilization CIPA Rating 0 stops 0 stops
Uncompressed format RAW RAW
Optics & Focus
Canon EOS Rebel XSi
Nikon D800
Autofocus Motor Yes Yes
Autofocus Contract Detect (sensor)
Phase Detect
Multi Area
Selective Single Point
Tracking
Single
Continuous
Phase Detect
Multi Area
Selective Single Point
Tracking
Single
Continuous
Face Detection
LiveView
Focus Points 9 51
Lens Mount Canon EF
Canon EF-S

See Compatible Lenses
Nikon F

See Compatible Lenses
Focal Length Multiplier APS-C Sensor
1.6x multiplier
Example:
24 mm becomes 38 mm
50 mm becomes 80 mm
100 mm becomes 160 mm
200 mm becomes 320 mm
FX (Full frame)
No multiplier
Example:
24 mm remains 24 mm
50 mm remains 50 mm
100 mm remains 100 mm
200 mm remains 200 mm
Screen & Viewfinder
Canon EOS Rebel XSi
Nikon D800
Articulated LCD Fixed Fixed
Screen size 3” 3,2”
Screen dots 230000 921000
Touch screen No No
Screen type N/A TFT Color LCD with 170 degrees wide-viewing angle
Live view Yes Yes
Viewfinder Type Optical (pentamirror) Optical (pentaprism)
Viewfinder Coverage 95% 100%
Viewfinder Magnification 0.87× (0.54× 35mm equiv.) 0.7×
Viewfinder Resolution N/A N/A
Photography features
Canon EOS Rebel XSi
Nikon D800
Frames per second 3,5 fps 6 fps
Minimum Shutter Speed 30 seconds 30 seconds
Maximum Shutter Speed 1/4000 seconds 1/8000 seconds
Built-in Flash Yes Yes
Built-in Flash Range 13 meters 12 meters
External Flash Yes Yes
Self-Timer Yes Yes
Time-lapse Yes Yes
Metering modes Multi
Center Weighted
Partial
Multi
Center Weighted
Spot
Average
Exposure Compensation +/- 2 (at 1/3 EV, 1/2 EV steps) +/- 5 (at 1/3 EV, 1/2 EV, 1 EV steps)
Videography features
Canon EOS Rebel XSi
Nikon D800
Video recording No Yes
Video format N/A MPEG4
H.264
Video resolution N/A 1280 x 720
1920 x 1080
Built-in Microphone No Yes
Built-in Speakers No Yes
Storage
Canon EOS Rebel XSi
Nikon D800
Memory Card SD/SDHC
Compact Flash
Connectivity
Canon EOS Rebel XSi
Nikon D800
HDMI Output No Yes
Microphone Port No Yes
Headphone Port No Yes
Wireless No Yes
Optional with Nikon Wireless Transmitter for D800 (WT-4A)
Remote Control Yes (E3 connector, InfraRed) Yes (Optional, wired or wireless)
GPS No Yes
Optional with GP-1
Body & Dimensions
Canon EOS Rebel XSi
Nikon D800
Enviromentally sealed No Yes
Battery Battery Pack Battery Pack
Battery Details Battery Pack LP-E5
Lithium-Ion EN-EL15 rechargeable battery & charger
Battery Life (CIPA) 600 shots 900 shots
Width 129 mm 146 mm
Height 98 mm 123 mm
Depth 62 mm 82 mm
Weight 524 gram 900 gram