Manual focus is also available, as are focus peaking and focus bracketing. You can choose from one of 49 autofocus points or use a broader zone focus mode, and you can move the AF point by 'touch-and-drag' operation on the touch-sensitive LCD display. Indeed, Canon claims an AF response of just 0.09 seconds. The PowerShot G1 X Mark III's sensor is one of Canon's Dual Pixel CMOS AF designs, which uses a 'split-pixel' system to offer faster phase-detection autofocus. It's small on the outside, but the PowerShot G1 X Mark III packs a sensor the same size and resolution as those in Canon's enthusiast DSLR on the inside The PowerShot G1 X Mark III's lens is a non-interchangeable lens, however, so while this presumably gave the designers a little more leeway for miniaturisation, it does make it a little more limited. The zoom range is identical to the retracting 15-45mm kit lenses sold with Canon's EOS M-series mirrorless cameras, but this version is much more compact. When extended, though, the 15-45mm lens offers an effect 24-72mm zoom range, with a maximum aperture of f/2.8-5.6. So, Canon has done remarkably well to design and manufacturer a 3x optical zoom lens that retracts when the camera's not in use, and adds only a little to the overall thickness. 398g (including battery and memory card)Ĭramming a DSLR-sized sensor into a compact camera body is only part of the technical challenge, since the size of a camera lens tends to be in proportion to the sensor. 200-shot battery life (up to 250 in Eco mode) 2.36million-dot EVF with Organic EL panel.