Sony a99 vs Canon EOS R100

This is a full comparison between the cameras Sony a99 and Canon EOS R100. We compare them by looking at the categories you see below.

Manufacturing

Sony a99 is manufacturered by Sony but Canon EOS R100 is from Canon. Both Sony and Canon are well known brands though.

Type of camera

Sensors / crop factor

These cameras have different sensors. Sony a99 has a "Sony Full Frame"-sensor while Canon EOS R100 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.

** 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

Both these cameras have the exact same resolution. Sony a99 has a 24 MP (Megapixels) resolution while Canon EOS R100 has 24 MP. If we break down this in more detail this is the data behind the numbers:

ISO range

Sony a99 has a larger ISO-range than Canon EOS R100. Sony a99 has an ISO range that stretches from 100 to 25600 while Canon EOS R100 has 100 to 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.

Worth mentioning is that Canon EOS R100 belongs to the Canon EOS R-system and needs an adapter to work with Canons EF, EF-S, MP-E, and TS-E lenses. You can read more about this adapter here:
Canon Lens Mount Adapter EF-EOS R

Here is a complete overview of which lenses work with each camera:
Lens compatibility chart for Sony a99
Lens compatibility chart for Canon EOS R100

Pictures per second

Depending on what you are shooting the FPS, or frames/pictures per second, can definitely be of interest. Sony a99 can shoot up to 6 pictures per seconds and Canon EOS R100 can shoot up to 6,5 pictures per seconds.

Ability to record movies

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

In this case, both Sony a99 and Canon EOS R100 can shoot movies.

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 a99 weighs 812 gr (equal to 1.79 lb) which is 128% heavier than Canon EOS R100 and its 356 gr (or 0.78 lb).

Sony a99 vs Canon EOS R100 Specs

Below you will find the complete and detailed technical specs for both Sony a99 and Canon EOS R100, 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 a99	Canon EOS R100
Name	Sony a99	Canon EOS R100
Manufacturer	Sony	Canon
Release Date and Price	Sony a99	Canon EOS R100
Release Year	2012	2023
Release Date	2012-09-12	2023-05-24
MSRP	2799 USD	480 USD
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Camera Type	Sony a99	Canon EOS R100
Camera Type	SLT	Mirrorless
Sensor	Sony a99	Canon EOS R100
Sensor Size	Full Frame (approx 36 x 24 mm)	APS-C (approx 22.3 x 14.9 mm)
Sensor Type	CMOS	CMOS
Resolution	6000 x 4000 pixels	6000 x 4000 pixels
Megapixels	24 MP	24 MP
Image Processor	Bionz	DIGIC 8
Image	Sony a99	Canon EOS R100
ISO Range	100 - 25600	100 - 12800
White Balance Presets	8	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 a99	Canon EOS R100
Autofocus Motor	Yes	Yes
Autofocus	Phase Detect Multi Area Selective Single Point Tracking Single Continuous Face Detection LiveView	Contract Detect (sensor) Phase Detect Multi Area Center Selective Single Point Tracking Single Continuous Face Detection LiveView
Focus Points	19	143
Lens Mount	Sony A See Compatible Lenses	Canon RF See Compatible Lenses
Focal Length Multiplier	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	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 a99	Canon EOS R100
Articulated LCD	Fully articulated	Fixed
Screen size	3”	3”
Screen dots	1229000	1040000
Touch screen	No	No
Screen type	TFT Xtra Fine color LCD	N/A
Live view	Yes	Yes
Viewfinder Type	Electronic	Electronic
Viewfinder Coverage	100%	100%
Viewfinder Magnification	0.71×	0.95× (0.59× 35mm equiv.)
Viewfinder Resolution	N/A	N/A
Photography features	Sony a99	Canon EOS R100
Frames per second	6 fps	6,5 fps
Minimum Shutter Speed	30 seconds	1 seconds
Maximum Shutter Speed	1/8000 seconds	1/4000 seconds
Built-in Flash	No	Yes
Built-in Flash Range	N/A	N/A
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	+/- 5 (at 1/3 EV, 1/2 EV steps)	+/- 2 (at 1/3 EV steps)
Videography features	Sony a99	Canon EOS R100
Video recording	Yes	Yes
Video format	MPEG4 H.264 AVCHD	MPEG4 H.264
Video resolution	1440 x 1080 1920 x 1080
Built-in Microphone	Yes	Yes
Built-in Speakers	Yes	No
Storage	Sony a99	Canon EOS R100
Memory Card	Memory Stick Pro Duo SD/SDHC	SD/SDHC
Connectivity	Sony a99	Canon EOS R100
HDMI Output	Yes	Yes
Microphone Port	No	Yes
Headphone Port	No	No
Wireless	No	Yes Built-In
Remote Control	Yes (Wired or Wireless (Optional))	Yes (via Smartphone, via BR-E1 remote controller)
GPS	Yes Built-in	No
Body & Dimensions	Sony a99	Canon EOS R100
Enviromentally sealed	Yes	No
Battery	Battery Pack	Battery Pack
Battery Details	Lithium-Ion NP-FM500H rechargeable battery & charger	LP-E17
Battery Life (CIPA)	500 shots	N/A
Width	147 mm	116 mm
Height	111 mm	86 mm
Depth	78 mm	69 mm
Weight	812 gram	356 gram