Images on this page are of our standard resolution chart which provides for measurement of resolution up to 4000 LPH (Lines Per Picture Height). A value of 20 equates to 2000 lines per picture height. For each camera we use the relevant prime lens (the same one we use for all the other tests in a particular review). The chart is shot at a full range of apertures and the sharpest image selected. Studio light, cameras set to aperture priority (optimum aperture selected), image parameters default. Exposure compensation set to deliver approximately 80% luminance in the white areas.
What we want to show here is how well the camera is able to resolve the detail in our standard test chart compared to the theoretical maximum resolution of the sensor, which for the charts we shoot is easy to work out - it's simply the number of vertical pixels (the chart shows the number of single lines per picture height, the theoretical limit is 1 line per pixel). Beyond this limit (which when talking about line pairs is usually referred to as the Nyquist frequency) the sensor cannot faithfully record image detail and aliasing occurs.
This limit is rarely attained, because the majority of sensors are fitted with anti-aliasing filters. Anti-aliasing filters are designed to reduce unpleasant moiré effects, but in doing so, they also reduce resolution (the relative strength and quality of these filters varies from camera to camera). In theory though, a sensor without an AA filter, when coupled with a 'perfect' lens, will deliver resolution equal to its Nyquist limit. Therefore, even though it may be effectively unattainable with normal equipment in normal shooting situations, an understanding of a sensor's theoretical limit provides a useful benchmark for best possible performance. Nyquist is indicated in these crops with a red line.
On this page we're looking at both JPEG and Raw resolution. For a (more) level playing field we convert the latter using Adobe Camera Raw. Because Adobe Camera Raw applies different levels of sharpening to different cameras (this confirmed) we use the following workflow for these conversions:
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| JPEG (5184 x 3456) 4.7MB | Raw (5184 x 3456) 4.8MB |
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| Raw |
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| JPEG | Raw |
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The EOS 700D's JPEG files - like those of the EOS 650D - display slightly less aggressive sharpening than we saw on the earlier Canon EOS 600D. This has little meaningful effect on perceived resolution though and does limit the presence of edge halos, which are more pronounced here in our two-tone resolution target than in our real world images. Based on pixel count, you'd expect to distinguish all nine lines of our resolution chart at around 2400 LPH.
Processing the camera's Raw file with ACR 7.4 and then applying a moderate amount of sharpening in Photoshop yields a 'cleaner' image without any sharpening halos, yet moiré patterning takes on a more significant presence.
Canon EOS Rebel T5i 18.0 MP CMOS Digital SLR with 18-135mm EF-S IS STM Lens | Too low to display |
Canon EOS Rebel T5i 18.0 MP CMOS Digital SLR with 18-55mm EF-S IS STM Lens | Too low to display |
Canon EOS Rebel T5i 18.0 MP CMOS Digital SLR with 18-135mm EF-S IS STM Lens | Too low to display |
Focus Camera Canon EOS Rebel T5i 18.0 MP CMOS Digital Camera with EF-S 18-55mm f/3.5-5.6 IS STM Zoom Lens + EF-S 55-250mm f/4.0-5.6 IS Telephoto Zoom Lens + Telephoto & Wide Angle Lenses + 12pc Bundle 32GB Deluxe Accessory Kit | $979.00 |
Canon EOS Rebel T5i 18.0 MP CMOS Digital Camera with 3-inch Touchscreen and Full HD Movie Mode (Body Only) | $699.00 |
Canon EOS Rebel T3i 18 MP CMOS Digital SLR Camera with EF-S 18-55mm f/3.5-5.6 IS II Zoom Lens & EF 75-300mm f/4-5.6 III Telephoto Zoom Lens + 11pc Bundle 16GB Deluxe Accessory Kit | Too low to display |
Focus Camera Canon EOS Rebel T5i 18.0 MP CMOS Digital Camera with EF-S 18-55mm f/3.5-5.6 IS STM Zoom Lens + EF 75-300mm f/4-5.6 III Telephoto Zoom Lens + Telephoto & Wide Angle Lenses + 12pc Bundle 32GB Deluxe Accessory Kit | $1,037.95 |
Canon EOS Rebel T5i Digital SLR Camera & EF-S 18-135mm IS STM Lens with 32GB Card + Battery & Charger + Backpack + Filter + HDMI Cable + Accessory Kit | $1,049.95 |
Canon EOS REBEL T4i 18.0 MP CMOS Digital Camera with 3-inch Touchscreen and Full HD Movie Mode (Body Only) | $670.99 |
Canon EOS Rebel T5i Digital SLR Camera & EF-S 18-135mm IS STM Lens with 64GB Card + Battery + Case + Flash + 3 UV/FLD/CPL Filters + Tripod + Accessory Kit | $1,084.95 |
Canon EOS Rebel T5i Digital SLR Camera & EF-S 18-135mm IS STM Lens with EF-S 55-250mm IS Lens + 64GB Card + Battery + Case + Flash + 3 UV/CPL/ND8 Filters Kit | $1,214.95 |
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