Canon EOS 70D
Price as Reviewed:£1,069.00
With a new 20.2-million-pixel sensor, 19 cross-type AF points and an impressive 7fps shooting rate, Richard Sibley finds out whether the Canon EOS 70D is the best enthusiast DSLR on the market. Read the Canon EOS 70D review...
Canon EOS 70D review – Autofocus
As with a number of other features, the EOS 70D borrows its AF system from the flagship Canon APS-C model, the EOS 7D. The AF system consists of 19 points, all of which are the more sensitive cross-type so they should provide faster and more accurate focusing as they work across both a horizontal and vertical axis.
In bright light, I found the autofocus of the EOS 70D to be extremely fast and accurate, not to mention quiet. In fact, when using the EF-S 18-135mm f/3.5-5.6 STM kit lens, there were a few times when, were it not for the audible AF being switched on, I wouldn’t have known that autofocus had taken place.
In lower light, the camera does hunt around a little more, particularly when using a zoom lens with a f/5.6 maximum aperture at longer focal lengths. At f/4 and larger there was no such problem. Focusing in live view using the Dual Pixel CMOS AF system, it still struggled at f/5.6, but was very snappy at larger apertures, although not quite as quick as the camera’s standard phase-detection system. Dual Pixel CMOS AF in live view is certainly a lot faster than the on-sensor phase detection Canon first used in the EOS M compact system camera.
The EOS M has now received a firmware upgrade to significantly improve its focusing speed, and it would seem that Canon has learned a thing or two about on-sensor phase detection over the past year, as the new 20.2-million-pixel Dual Pixel CMOS AF sensor is a marked improvement. Its development will have been expensive, so I would expect to see it in more Canon cameras in the future.
Another new feature is the aforementioned AF mode selection button on the top-plate. When held down, using the control dial allows you to change the AF mode and the points in use while still looking through the viewfinder. This is great for when you have to act quickly, such as when shooting wildlife.
Image: Taken using the 18-135mm f/3.5-5.6 STM kit lens, the 70D resolves a lot of fine detail
- Video: 1920 x 1080 pixels (at 30fps, 25fps or 24fps), 1280 x 720 pixels (at 60fps or 50fps), 640 x 480 pixels (at 60fps or 50fps), MOV files with MPEG-4 AVC/H.264 compression
- External mic: Yes
- White Balance: Auto, 6 presets, plus custom setting
- Dioptre Adjustment: -3 to +1 dioptre
- Built-in Flash: Yes – GN 12m @ ISO 100
- Shutter Type: Electronically controlled focal-plane shutter
- Viewfinder Type: Pentaprism
- Memory Card: SD, SDHC, SDXC
- Output Size: 5472 x 3648 pixels
- LCD: 3in vari-angle LCD with 1.04 million dots
- Field of View: Approx 98%
- Focal Length Mag: 1.6x
- Max Flash Sync: 1/250sec
- Sensor: 20.2-million-effective-pixel CMOS sensor
- White Balance Bracket: Yes, over 3 images
- AF Points: 19 cross-type, individually selectable AF points,auto or manual selection possible
- Exposure Modes: Auto, program, aperture priority, shutter priority, manual, 6 scene modes and creative auto
- Weight: 755g (including battery and card/s)
- Shutter Speeds: 30-1/8000sec in 1⁄3EV steps plus bulb
- File Format: Raw, JPEG, raw + JPEG simultaneously
- Power: Rechargeable Li-Ion LP-E6 battery
- Lens Mount: Canon EF-S (compatible with EF)
- Drive Mode: 7fps for 65 large fine JPEG files or 16 raw images
- Colour Space: Adobe RGB, sRGB
- ISO: 100-25,600
- DoF Preview: Yes
- Focusing Modes: Manual, single-shot AF, automatic AF, continuous AF
- Metering System: 63-zone evaluative metering,partial (7.7% of centre),centreweighted and spot (3%)
- Dimensions: 139 x 104.3 x 78.5mm
- Compression: 2-stage JPEG, 3-stage raw
- Connectivity / Interface: USB 2.0 Hi-Speed
- Exposure Comp: ±5EV in 1⁄3EV or 1/2EV steps
- RRP: £1,079.99 (body only)
- Tested as: Enthusiast DSLR