Our latest test scene is designed to simulate both daylight and low light shooting. Pressing the 'lighting' buttons at the top of the widget allows you to switch between the two. The daylight scene is shot with manually set white balance aimed at achieving neutral grays, but the camera is left in its Auto setting for the low light tests (except Raw, which is manually corrected during conversion). We also offer three different viewing sizes: 'Full', 'Print', and 'Comp', with the latter two offering 'normalized' comparisons to more fairly compare cameras of differing resolutions by using matched viewing sizes. The 'Comp' option chooses the largest-available resolution common to the cameras being compared.

The Rebel T6 slots in right below the recent 24MP T6s/T6i upgrade to the Rebel series, and shares its 18MP sensor with the previous-generation T5i. In our review of the T6s/i we found the upgrade to the 24MP chip brought the newer Rebels almost up to par with the best of their APS-C competition, so is the T6 left trailing behind?

The most obvious change from the T6s/i is the decrease in resolution. The long side of the JPEG output of the T6 is 5184 pixels compared to the T6s's 6000 pixels. While that 14% decrease isn't dramatic, it does put the T6 slightly behind.

The DIGIC 4 processor from the T5i has been given some slight tweaks to become the DIGIC 4+ processor found in the T6. One of the big changes is sharpening, as can be seen in the white on black text in our scene. These changes make the output largely similar to the T6s in terms of sharpness and color, meaning it gives very likeable, very usable JPEGs.

Where the T6's DIGIC 4+ engine falls short is when it comes to noise reduction. The T6 lets much more chroma noise through than its predecessor the T5i, and while it does mean preserving a little more detail, noise gets a bit unpleasant at high ISOs.

Raw performance shows a little more noise than the T6s at the pixel level, giving the higher-resolution T6s a noticeable low light advantage when normalized. This means that Raw performance is slightly behind some 24MP APS-C competitors, like the Pentax K-S2, the Nikon D3300, and the Sony a5100.

As expected, the T6, with its older sensor, is a step back from the T6s/i and can't match the performance offered by the best of its competitors under critical examination. However, particularly for JPEG photography, the T6 offers very good image quality, and gives a decent account of itself considering the camera's comparatively low cost.