It does sit right next to the focus ring, however, so it's easy to turn the wrong one by mistake. The SA Control dial has a reassuring amount of resistance, to help prevent micro-nudges during operation, and features hard stops at either extreme and a soft click at the neutral setting. The ring is clicked, but can be de-clicked at a service center for silent operation (such as during video work). The nose of the optic features a standard issue Control Ring, which can be customized for exposure values such as aperture, ISO and white balance. While it's slightly longer, wider and heavier than the existing DSLR version, the Canon RF 100mm Macro still feels sleek and is very 'handle-able' – and is deceptively light, given its footprint.Īs a macro lens demands, it possesses a large and well damped focus ring with pleasingly long throw – perfect for pinpoint precision when finding focus, whether you're working by eye or using a focus assist like peaking. And, when not employing SA Control, focus breathing is well controlled – which is not only useful for filming video, but is also invaluable for focus bracketing and focus stacking images.Ĭanon RF 100mm f/2.8L Macro IS USM + Canon EOS R5 (1/160 sec, f/5.6, ISO100) (Image credit: James Artaius) Canon RF 100mm f/2.8L Macro IS USM: Build & handling The optic boasts Dual Nano USM for quick, smooth and near-silent autofocus. When mounted on the Canon EOS R5 or Canon EOS R6, the maximum compensation is increased to 8 stops thanks to the cameras' in-body image stabilization. The RF 100mm packs a maximum of 5 stops of lens-based image stabilization as standard, though this is limited to 2 stops when shooting at 1.0x magnification. So this is something to be aware of when composing your shots, as the frame will become tighter or looser depending on how you manipulate the dial. You can also see how the SA Control introduces focus breathing at both extremes, pushing in at -2 and pushing out at +2. You can see how the bokeh becomes more 'smeary' when the lens is set to -2, while the bokeh becomes busier and more 'soap bubble' at +2. The first image shows the lens' rendering with SA disabled at f/2.8 (the effect is most pronounced when shooting wide open, and becomes less apparent as the lens is stopped down). You can see the results this creates in the slideshow above, depicting orange Kalanchoe flowers. The other big difference is the SA Control – a purely creative control dial that imposes varying degrees of spherical aberration, in order to create a soft focus effect and change the nature of the fore and background bokeh. Canon RF 100mm f/2.8L Macro IS USM: Key featuresĬanon is keen to point out that this lens is the "world's first" autofocusing macro lens with a 1.4:1 reproduction ratio. Indeed, this is one of the two main differentiators between this and the existing Canon EF 100mm f/2.8L Macro IS USM – and for serious macro shooters, this alone will be reason enough to upgrade.
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