Canon EOS Rebel T4i vs Sony Alpha SLT-A77

In this comparison, we will evaluate the Canon EOS Rebel T4i and the Sony Alpha SLT-A77, highlighting the advantages of each over the other, discussing their pros and cons, shared strengths and weaknesses, and providing a rating based on their available features and specifications to assist you in choosing the one that best suits your needs.

Canon EOS Rebel T4i was introduced in August 2012 and Sony Alpha SLT-A77 was introduced in October 2011. Let us first list highlights of the models.

Now that we've looked at the most essential specifications and gained a basic understanding of these cameras, we can delve into more details and see the differences between them.

This section shows those features and specifications which are the reason to choose Canon EOS Rebel T4i over Sony Alpha SLT-A77.

This section shows those features and specifications which are the reason to choose Sony Alpha SLT-A77 over Canon EOS Rebel T4i.

We already listed pros and cons of each model. However, you may also find useful to look at their common strengths and weaknesses shown side-by-side.

Screen

Canon EOS Rebel T4i and Sony Alpha SLT-A77 have 3.0" Fully Articulated screens with 1,040k dot and 921k dot resolutions respectively. Fully articulated screen makes cameras selfie and vlogger friendly and generally very useful for video shooting. Canon EOS Rebel T4i also features touchscreen which has advantages such as easy menu navigation, intuitive controls, quick setting adjustment and most importantly a Touch-to-Focus functionality allowing users to select a specific point on the screen where they want the camera to focus. This feature can be helpful for achieving precise focus in both photo and video recording.

Viewfinder

Canon EOS Rebel T4i has a built-in Optical (pentamirror) viewfinderSony Alpha SLT-A77 has a built-in Electronic viewfinder with 2,359k dot resolution. Canon EOS Rebel T4i has 95% coverage with 0.85x (0.53x 35mm equivalent) magnification and Sony Alpha SLT-A77 has 100% coverage with 1.10x (0.73x 35mm equivalent) magnification.

Canon EOS Rebel T4i features a 18.0 megapixel APS-C CMOS sensor with dimensions of 22.3 x 14.9 mm and a total area of 332.3 mm². Its native ISO range is 100 - 12,800 and expands to 100 - 25,600 in boosted mode. Sony Alpha SLT-A77 features a 24.3 megapixel APS-C CMOS sensor with dimensions of 23.5 x 15.6 mm and a total area of 243.4 mm². Its native ISO range is 50 - 16,000 and expands to 50 - 25,600 in boosted mode.

Here is a sensor size comparison chart where you can see how different sensors compare with each other:

Sensor size chart

	Sensor	Dimensions	Area	Aspect Ratio	Crop Factor
	Medium Format	44 x 33 mm	1452 mm2	4:3	0.79x
	Full Frame	36 x 24 mm	864 mm2	3:2	1x
	APS-H	27 x 18 mm	486 mm2	3:2	1.3x
	APS-C	23.6 x 15.6 mm	368.2 mm2	3:2	1.5x
	APS-C (Canon)	22.3 x 14.9 mm	332.3 mm2	3:2	1.6x
	Micro Four Thirds	17.4 x 13 mm	226.2 mm2	4:3	2x
	1-inch	13.2 x 8.8 mm	116.2 mm2	3:2	2.7x
	1/1.7-inch	7.44 x 5.58 mm	41.5 mm2	4:3	4.7x
	1/2.3-inch	6.17 x 4.55 mm	28.1 mm2	4:3	5.6x

Canon EOS Rebel T4i is equipped with DIGIC 5 processor and can take pictures up to 5184 x 3456 resolution. It can also take pictures with lower resolution like 5184 x 2912, 4608 x 3456,3456 x 3456, 3456 x 2304, 3456 x 1944, 3072 x 2304, 2592 x 1728, 2592 x 1456, 2304 x 1728, 2304 x 2304, 1920 x 1280, 1920 x 1080, 1728 x 1728, 1696 x 1280, 1280 x 1280, 720 x 480, 720 x 400, 640 x 480, 480 x 480 with 1:1, 4:3, 3:2, 16:9 aspect ratios. Sony Alpha SLT-A77 is equipped with BIONZ processor and can take pictures up to 6000 x 4000 resolution. It can also take pictures with lower resolution like 6000 x 3376, 4240 x 2832, 4240 x 2400, 3008 x 2000, 3008 x 1688 with 3:2, 16:9 aspect ratios.

Lens Mount

Canon EOS Rebel T4i has Canon EF/EF-S lens mount and Sony Alpha SLT-A77 has Sony A lens mount. They both have APS-C sensor but because of a small size difference their crop factors (also called lens multiplier) differ from each other. Canon EOS Rebel T4i has the crop factor of 1.6x which means that a 35mm equivalent focal length of the mounted lens will be equal to its actual focal length times 1.6. Sony Alpha SLT-A77 has the crop factor of 1.5x which means that a 35mm equivalent focal length of the mounted lens will be equal to its actual focal length times 1.5.

In-Body Image Stabilization on Sony Alpha SLT-A77

Sony Alpha SLT-A77 has a built-in Sensor Shift in-body image stabilization (IBIS). This means that you are still getting vibration reduction when camera is paired with non-image stabilizied lenses. It also works with lenses with optical image stabilization and in combination can achieve even better compensation.

Built-in GPS on Sony Alpha SLT-A77

Sony Alpha SLT-A77 has a built-in GPS (Global Positioning System) technology which allows you to automatically tag the location where you took your photos. You can later categorize, organize, and search for photos based on location. This is very useful for travel and outdoor photographers for documenting the locations where images were captured.
  Check out the cameras in our database that have built-in GPS.

USB Inputs and HDMI Outputs

Both models have USB 2.0 (480 Mbit/sec) inputs for data transfer. Canon EOS Rebel T4i has a Mini HDMI and Sony Alpha SLT-A77 has a Mini Type C HDMI connector for video signal output.

Battery

Canon EOS Rebel T4i comes with LP-E8 battery pack with battery life of 440 shots and Sony Alpha SLT-A77 comes with NP-FM500H battery pack with battery life of 470 shots.

External Storage Slots

Canon EOS Rebel T4i has a single SD/SDHC/SDXC card slot. Sony Alpha SLT-A77 has a single SD/SDHC/SDXC, Memory Stick Duo/Pro Duo/Pro-HG Duo card slot.

Shutter

Shutter speed can go up to 1/4000 sec on Canon EOS Rebel T4i, and up to 1/8000 sec on Sony Alpha SLT-A77. Canon EOS Rebel T4i can shoot continuously up to 5.0 fps. Sony Alpha SLT-A77 can shoot continuously up to 12.0 fps.

Focusing

Canon EOS Rebel T4i has TTL secondary image forming, phase difference detection with AF dedicated CMOS sensor system with 9 (9 cross-type) focusing points and Sony Alpha SLT-A77 has 19 (11 cross-type) focusing points. Canon EOS Rebel T4i has detection range from -0.5 to +18 EV.

Flash

Cameras have built-in flash with maximum range of 13.00 m on Canon EOS Rebel T4i and 12.00 m on Sony Alpha SLT-A77. They also accept external flash which can be connected via Hot Shoe to Canon EOS Rebel T4i and via Hot Shoe or Wireless connection to Sony Alpha SLT-A77. The fastest flash synchronization speed is 1/200 sec on Canon EOS Rebel T4i and 1/250 sec on Sony Alpha SLT-A77.

Canon EOS Rebel T4i body has dimensions of 133 x 100 x 79 mm (5.24 x 3.94 x 3.11") and Sony Alpha SLT-A77 body has dimensions of 143 x 104 x 81 mm (5.63 x 4.09 x 3.19"). Canon EOS Rebel T4i weighs 575 g (1.27 lb / 20.28 oz) and Sony Alpha SLT-A77 weighs 732 g (1.61 lb / 25.82 oz).

Canon EOS Rebel T4i

Sony Alpha SLT-A77

133 mm

100 mm

143 mm

104 mm

100 mm

104 mm

79 mm

81 mm