Shown here is the EF/EF-S lens mount system that you will find on all of Canon's EOS rebel cameras, including the Rebel T4i. With 70+ lenses in this line, you will always be able to find a quality Canon lens for any shooting situation that you may find yourself in. On the right hand side of the lens mount, you can see the lens release button and the DOF preview button.
This is Canon's APS-C sized 18-Megapixel CMOS imaging sensor that is featured in the T4i. This sensor includes center pixels that are designed to assist the systems outstanding AF performance. This smaller sensor has a 1.6x field of view compared to 35mm, and for the T4i, they have pushed the max ISO up to 25,600 in high mode, or up to 12,800 as a standard setting.
All of the processing power comes from this DIGIC 5 processor. Not only does this allow the camera to capture burst images at 5fps, but it's also the brain behind the increased detail in lower light, creative modes, Scene Intelligent Auto, HDR backlight and lens corrections in the camera instead of on a computer afterwards. It also handles all the processing for the camera's full 1080p HD video option.
Shown here are some of the controls located on the front of the camera, and on the lens packaged with the T4i. Switching between manual and auto focus is controlled on the lens as well as the image stabilizer switch (if the lens offers this feature). On the camera body you will see the flash release button, followed by the lens lock release, and the DOF (Depth-of-field) preview button. At the very bottom is the zoom ring lock, found on the EF-S 18-135mm F/3.5-5.6 IS STM, which is available with the T4i as a kit.
This is the auto pop-up, built-in flash unit. It covers a focal length of up to 17mm with an approximate recharge time of 3 sec. The guide number is approximately 13/43 (meters/feet at ISO 100), and has an option to change the Flash Exposure Compensation: +/- 2 stops in 1/3 or 1/2 stop increments.
On top of the camera, above the pop-up flash unit, you will find the camera's stereo microphones mounted ahead of the hotshoe. The mics provide stereo sound with manual audio level adjustment, a first for a Rebel camera. The hotshoe allows you to connect and use any Speedlight Flash unit or Canon's GPS unit for including location information with your images.
Here you can see the T4i with the Speedlight 430EX II flash unit. This mid-level Speedlight flash offers a great combination of power and compact portability, which is a perfect match for the Rebel T4i.
Using the same eye-level SLR fixed pentamirror viewfinder as the T3i, it offers approx. 95% coverage (vertically and horizontally), 0.85x magnification (with 50mm at infinity), a 19mm eye point, and -3.0 - +1.0 dioptric adjustment. To the left of the viewfinder, you can see the camera's menu and INFO. buttons. To the right is the Live View / Movie Shooting button, which allows you to switch between the optical viewfinder and the LCD screen for framing. Finally, at the very top is the sensor that turns off the LCD screen when you put the camera to your face, so you do not have a bright light in your eyes while trying to shoot. This is a first on the Rebel series.
The information presented in the viewfinder includes:
- AF information: AF points, focus confirmation light.
- Exposure information: Shutter speed, aperture, ISO speed (always displayed), AE lock, exposure level, spot metering circle, exposure warning
- Flash information: Flash ready, flash exposure compensation, high-speed sync, FE lock, red-eye reduction light
- Image information: Highlight tone priority (D+), monochrome shooting, maximum burst (1-digitdisplay), white balance correction, SD card information
- Depth of field Preview: Enabled with the DOF preview button located on the front of the camera by the lens lock release
Canon has given the T4i a new 9-point, all cross-type AF system including a including high-precision dual-cross f/2.8 center point. This is just part of Canon's new Hybrid CMOS AF System, which combines phase and contrast detection for faster and more accurate focusing. Focusing modes include:
- One-Shot AF
- Predictive AI Servo AF
- AI Focus AF
- Manual Focusing (MF)
- AF Point selection (Auto or Manual)
The T4i also uses an AF assist lamp (aka AF assist beam), which helps the camera focus on subjects in marginal lighting conditions. This is accomplished by intermittently firing the built-in flash unit. The effective range is: Approx. 4.0m/13.1 ft. at center, approx. 3.5m/11.5 ft. at periphery. When using an external speedlite, the camera will utilize the speedlite's AF beam.
Here we can see Canon's new Vari-angle Touch Screen 3.0-inch Clear View LCD monitor II. This newly designed monitor was created with the same technology as most touch screen cell phones, making it much more sensitive than many of the touch screens we see on digital cameras. It also enables one and two finger touches and gestures for control over the images like zoom, scroll and one-touch shutter release features. Made up of 1,040,000 dots, and measuring 3-inches diagonally, it is a little smaller that the display on a smart phone, but offers a very high resolution image that's very sharp and shows tons of detail. This is great for framing, viewing and editing your images on the camera. Its new construction was also designed to greatly reduce glare and a smudge-resistant coating greatly helps to keep fingerprints off the screen.