(Image credit: Future) (opens in new tab) Either way, an increasing number of lenses for mirrorless cameras are heavily dependent on automatic corrections, and it’s the end result that really matters, which looks pretty much distortion-free. If you process raw files in the likes of Adobe Camera RAW without distortion correction, the results look more like they’ve come from a fisheye lens. That’s also the case if you process raw files in Canon’s Digital Photo Professional software. Like the Canon RF 24-240mm F4-6.3 IS USM at the short end of its zoom range, the RF 16mm produces heinous barrel distortion, relying entirely on an in-camera fix which can’t be switched off, as it’s grayed out in the menu. Speaking of in-camera corrections, the one for distortion can’t be switched off, and with good reason. Vignetting is quite noticeable at f/2.8 but in-camera correction is also available for this. Lateral chromatic aberration is also very well controlled, even with automatic in-camera correction switched off. (Image credit: Future) Canon RF 16mm f/2.8 STM: Performanceįor such an ultra-wide-angle lens, sharpness is very good on the whole and, if you stop down to f/5.6, that remains true right out to the extreme edges and corners of the image frame. That super-wide angle also enables to crop in using digital image stabilization, meaning that even the IBIS-free EOS R and Canon EOS RP (opens in new tab) (with which this makes a great, compact combo) can benefit from stabilization. The 16mm focal length is ideal for vloggers shooting selfie videos, as the wide viewing angle is great for including more of your surroundings when doing a piece to camera to add context – and the f/2.8 aperture is still enough to create subject separation while filming. As such, there are no weather-seals but the standard of construction nevertheless feels solid and robust. For manual focusing, the ring operates smoothly and with very good precision, which is a bonus for astrophotography, to which the lens is well suited thanks to its ultra-wide viewing angle and fast aperture rating.Īs you’d expect at the price, the lens has no ‘professional’ aspirations and is aimed predominantly at the beginner/mid-range photography sectors. ![]() As such, the manual focus ring comes complete with a Focus/Control switch, so you can assign various functions to the ring when using autofocus. Like some other lenses including the Canon RF 50mm F1.8 STM, downsizing is aided by the lack of a separate customizable control ring. As such, it behaves fantastically well as an all-day lens for shooting wide-spanning photos and videos. 4mm wider at just 69.2 x 40.1mm and weighing just 5g more at a feather-light 165g. The RF 16mm uses an almost identical chassis to the RF 50mm f/1.8, measuring just. (Image credit: Future) Canon RF 16mm f/2.8 STM: Build and handling
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