Sony a100 vs Canon EOS Rebel T3i

This is a full comparison between the cameras Sony a100 and Canon EOS Rebel T3i. We compare them by looking at the categories you see below.

Manufacturing

Sony a100 is manufacturered by Sony but Canon EOS Rebel T3i is from Canon. Both Sony and Canon are well known brands though.

Sony a100 were released 2006 and Canon EOS Rebel T3i was released 2011. That is a 5 years difference. In tech, this period can be of interest since technology is always improving, etc.

Camera Released
Sony a100 2006
Canon EOS Rebel T3i 2011

Type of camera

Both these cameras are DSLR cameras. No difference there.

Sensors / crop factor

These cameras have different sensors. Sony a100 has a "Sony APS-C"-sensor while Canon EOS Rebel T3i has a "Canon APS-C"-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 **
Sony a100 75 mm
Sony APS-C sensor
Crop factor/focal length multiplier by * 1.5
Canon EOS Rebel T3i 80 mm
Canon APS-C sensor
Crop factor/focal length multiplier by * 1.6

** 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 (Sony)
Camera selection can affect the focal length (Canon)

Resolution

Sony a100 has a 10 MP (Megapixels) resolution while Canon EOS Rebel T3i has 18 MP. If we break down this in more detail this is the data behind the numbers:

Camera Megapixels
Sony a100 10 MP
10036224 pixels
3872 x 2592
Canon EOS Rebel T3i 18 MP
17915904 pixels
5184 x 3456

Canon EOS Rebel T3i has a 79 % larger resolution than Sony a100. 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

Canon EOS Rebel T3i has a larger ISO-range than Sony a100. Canon EOS Rebel T3i has an ISO range that stretches from 100 to 12800 while Sony a100 has 100 to 1600.

Camera ISO Range
Sony a100 100-1600
Canon EOS Rebel T3i 100-12800

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 Sony a100
Lens compatibility chart for Canon EOS Rebel T3i

Pictures per second

Depending on what you are shooting the FPS, or frames/pictures per second, can definitely be of interest. Sony a100 can shoot up to 3 pictures per seconds and Canon EOS Rebel T3i can shoot up to 3,7 pictures per seconds.

Camera FPS (Frames per second)
Sony a100 3
Canon EOS Rebel T3i 3,7

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 Canon EOS Rebel T3i. Sadly, the Sony a100 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.

Sony a100 weighs 638 gr (equal to 1.41 lb) which is 12% heavier than Canon EOS Rebel T3i and its 570 gr (or 1.26 lb).

Camera Weight
Sony a100 638 gr
1.41 lb
Canon EOS Rebel T3i 570 gr
1.26 lb

Sony a100 vs Canon EOS Rebel T3i Specs

Below you will find the complete and detailed technical specs for both Sony a100 and Canon EOS Rebel T3i, 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
Sony a100
Canon EOS Rebel T3i
Name Sony a100 Canon EOS Rebel T3i
Manufacturer Sony Canon
Release Date and Price
Sony a100
Canon EOS Rebel T3i
Release Year 2006 2011
Release Date 2006-06-05 2011-02-07
MSRP 899 USD 1099 USD
Buy it today
Camera Type
Sony a100
Canon EOS Rebel T3i
Camera Type DSLR DSLR
Sensor
Sony a100
Canon EOS Rebel T3i
Sensor Size APS-C (approx 23.5 x 15.6 mm) APS-C (approx 22.3 x 14.9 mm)
Sensor Type CCD CMOS
Resolution 3872 x 2592 pixels 5184 x 3456 pixels
Megapixels 10 MP 18 MP
Image Processor Bionz DIGIC 4
Image
Sony a100
Canon EOS Rebel T3i
ISO Range 100 - 1600 100 - 12800
White Balance Presets 7 6
Custom White Balance Yes Yes
Image Stabilization Yes
(Sensor-Shift)
No
Image Stabilization CIPA Rating 0 stops 0 stops
Uncompressed format RAW RAW
Optics & Focus
Sony a100
Canon EOS Rebel T3i
Autofocus Motor Yes Yes
Autofocus Phase Detect
Multi Area
Selective Single Point
Single
Continuous
Contract Detect (sensor)
Phase Detect
Multi Area
Selective Single Point
Single
Continuous
Face Detection
LiveView
Focus Points 9 9
Lens Mount Sony A

See Compatible Lenses
Canon EF
Canon EF-S

See Compatible Lenses
Focal Length Multiplier APS-C Sensor (1.5x)
1.5x multiplier
Example:
24 mm becomes 36 mm
50 mm becomes 75 mm
100 mm becomes 150 mm
200 mm becomes 300 mm
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
Screen & Viewfinder
Sony a100
Canon EOS Rebel T3i
Articulated LCD No Fully articulated
Screen size 2.5” 3”
Screen dots 230000 1040000
Touch screen No No
Screen type N/A TFT color LCD, liquid-crystal monitor
Live view No Yes
Viewfinder Type Optical (pentamirror) Optical (pentamirror)
Viewfinder Coverage 95% 95%
Viewfinder Magnification 0.83× (0.55× 35mm equiv.) 0.85× (0.53× 35mm equiv.)
Viewfinder Resolution N/A N/A
Photography features
Sony a100
Canon EOS Rebel T3i
Frames per second 3 fps 3,7 fps
Minimum Shutter Speed 30 seconds 30 seconds
Maximum Shutter Speed 1/4000 seconds 1/4000 seconds
Built-in Flash Yes Yes
Built-in Flash Range N/A 13 meters
External Flash Yes Yes
Self-Timer Yes Yes
Time-lapse No Yes
Metering modes Multi
Center Weighted
Spot
Multi
Center Weighted
Spot
Partial
Exposure Compensation +/- 2 (at 1/3 EV steps) +/- 5 (at 1/3 EV, 1/2 EV steps)
Videography features
Sony a100
Canon EOS Rebel T3i
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
Sony a100
Canon EOS Rebel T3i
Memory Card Compact Flash
SD/SDHC
Connectivity
Sony a100
Canon EOS Rebel T3i
HDMI Output No Yes
Microphone Port No No
Headphone Port No No
Wireless No Yes
Eye-Fi Connected
Remote Control Yes (Wire (Optional)) Yes (E3 connector, InfraRed)
GPS No No
Body & Dimensions
Sony a100
Canon EOS Rebel T3i
Enviromentally sealed No No
Battery Battery Pack Battery Pack
Battery Details Lithium-Ion (NP-FM55H) & charger
Lithium-Ion LP-E8 rechargeable battery & charger
Battery Life (CIPA) 750 shots 440 shots
Width 133 mm 133 mm
Height 95 mm 100 mm
Depth 71 mm 80 mm
Weight 638 gram 570 gram