CANON’S EOS R SYSTEM IS HUGELY popular and it’s become clear that mirrorless, as opposed to DSLR technology, is very much the direction of travel for the company. However, for those that appreciate the value of choice and the opportunity to work with non-native lenses, the fact that Sigma at the moment doesn’t produce lenses that feature a dedicated RF mount could, perhaps, be seen as something of an issue.

In truth, of course, it’s no different to the situation a long-time Canon user who has switched to the R system, but might have a collection of EF lenses that they don’t want to have to upgrade, might be facing, and there’s a ready solution to hand.

Canon produces a fully-featured EF-EOS R adaptor, which is carefully designed to carry across all of the benefits of a direct connection for EF users. While perfect for those with Canon optics, those who are keen to tap into the wide range of choice and the undoubted quality of the Sigma EF lens line-up can likewise rest assured that all current Sigma Art, Contemporary and Sports EF lenses can connect to any Canon EOS R camera via the adaptor.

“If you’re a Canon RF user you might not be aware that you can attach any current Sigma Global Vision EF-mount lens to your camera via the Canon EF-EOS R adaptor,” comments Paul Reynolds, Sigma’s general manager. “This opens the door to a lot of affordable, very high-quality optics.

There’s also almost zero latency compared  to using them natively, and AF, optical stabilisation, metering metadata and other key lens functions are retained.” While there’s no doubting the quality of Canon glass, it’s always good to have options and, especially in these cash-conscious days when every penny can count, the opportunity to invest in compatible lenses from a hugely respected player such as Sigma is one that’s sure to be welcomed.

While still offering the very highest level of professional quality, Sigma optics will still work out a great deal more cost effective than their native equivalents, and so you could save money while still operating a pro-standard outfit.

Another huge consideration is that Canon’s native RF lens line-up is still evolving, so being able to tap into a wider range of glass, which will still work seamlessly on Canon RF bodies, is a very attractive prospect. As things stand Sigma offers a far wider range of focal lengths, and it has a number of unique optics that deliver something different. Currently there are some 21 full-frame lenses and three APS-C optics available,  so a total

of 24, and this covers the whole spectrum, from extreme wide-angles, such as the 12-24mm f/4 DG HSM Art, through to lengthy telephotos, such as the 500mm f/4, or telephoto zooms, like the 150-600mm f/5-6.3 DG OS HSM Contemporary.

More information:
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Look through the full list in our Box Out, and you’ll see there are some hugely impressive Sigma options to choose from here, many with ultra-wide f/1.4 apertures. Consider that against the fact that, currently, there are 30 native lenses for the RF system, and no third-party RF lenses with AF on the market at all, and it can clearly be seen that the adaptor approach is one that offers huge potential.

One further benefit to consider is the keen price point of the accessory that effectively makes all of this possible. The most affordable of the three Canon adaptors comes in at a very respectable £119, so it’s actually a very justifiable investment, especially when one considers the many doors it can open. The adaptor works particularly well because it’s designed to be a pass-through device, which means that there is almost no lag and no performance drop. Canon’s cameras communicate directly with the lens, making for what is, in effect, a ‘bilingual’ system.

What it all means is that, for those who are looking for an extra level of choice, there’s no need to wait for Sigma to potentially come to market with RFcompatible lenses. Use an adaptor and you effectively already have this flexibility, and it’s opening the door to a huge amount of extra choice for the Canon photographer who might be looking for a highquality alternative to native glass.

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