Overall Rating:

5

Canon EOS 70D


  • LCD viewfinder:
  • Dynamic Range:
  • Build/Handling:
  • Autofocus:
  • Noise/resolution:
  • Metering:
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Manufacturer:

Manufacturer:

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 – Noise, resolution and sensitivity

Images: Both images look good taken at ISO 5000, although there is some colour noise in the JPEG that was easily removed from the raw file

As is to be expected, when editing raw images more detail can be revealed than can be had from JPEGs, and there is plenty of latitude for sharpening. One thing to note is that, while it is possible to remove virtually all colour noise from raw images using the latest version of Adobe Lightroom, there is some slight colour noise visible in the shadow areas in JPEG images, even at ISO 400. While this isn’t much of an issue straight from the camera, if you plan to edit the shadows of JPEG images, they will have to be handled carefully.

Regarding detail resolution, JPEGs reach almost 30 at ISO 80-200. This is a good amount and is a reflection of the camera’s 20.2-million-pixel resolution. The degradation of resolution is actually quite slow, with the first real notable drop coming at ISO 3200, where JPEG images resolve to around 24-26 on our test chart. Although there are hints of colour noise beyond ISO 400, it really becomes a concern at ISO 6400. At this point luminance noise also becomes a lot stronger, really softening the image and reducing resolution. By the time the extended ISO 25,600 sensitivity is reached, JPEG images only resolve to around 16-18 on our test chart.

These images show 72ppi (100% on a computer screen) sections of images of a resolution chart, captured using the Sigma 105mm f/2.8 macro lens set to f/5.6 . We show the section of the resolution chart where the camera starts to fail to reproduce the lines separately. The higher the number visible in the images, the better the camera’s detail
resolution is at the specified sensitivity setting.

  • 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

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