Canon claims that this is one of the key reasons for the high corner-to-corner sharpness, even when the lens is used wide open. The rearmost element sits very close to the back of the lens itself and is the largest in the array. Whereas the older optic (designed for DSLRs) has a large front element and a small rear element, the RF 35mm F1.8 (designed for mirrorless) has a small front element and a large rear element.Ĭanon has pointed out how the RF mount’s width and the short flange back distance gives new freedom to lens designers, and the optical design here – or, more specifically, the way in which this differs from existing designs in similar lenses – appears to back that up. The optical design of the RF 35mm F1.8 Macro is similar to the older EF 35mm F2, but flipped. With the lens mounted on either the EOS R or EOS RP, you have access to Canon’s full suite of aberration-rectifying options that deal with vignetting, lateral chromatic aberration, distortion and diffraction, in addition to the Digital Lens Optimizer that aims to counter the softening effects from diffraction, among other things. This includes a single glass moulded aspherical element within the focusing group in the middle of the formula, which is in place both to combat spherical aberration and also to keep image quality consistent over focusing distances. The lens has a new formula that sees 11 elements arranged in nine groups. Optical construction: 11 elements in 9 groups.Aperture range: F1.8-22 (In 1/3EV stops).The added bonus of image stabilization also makes the absence of sensor-based stabilization from the current bodies less of an issue, while ‘Macro’ in the name indicates a close focusing distance of 17cm / 6.7 in (albeit shy of being truly macro, offering a maximum reproduction ratio of 1:2).Īll pictures by Matt Golowczynski unless otherwise noted. All of this should mean it holds particular appeal for EOS RP owners who’d like to start exploring the native lens selection but find their camera bodies – and/or wallets – overwhelmed by the other current native offerings.Ī 35mm F1.8 option is a fairly sensible and versatile lens to have at the start of a system, and its broad appeal should pique the interest of street, travel, nature, portraiture and even landscape photographers. It’s also around half the price of the next cheapest lens in the system, while its focal length and aperture, combined with the fact that it’s a prime lens, also allow it to be considerably smaller and lighter than every other option so far. Something of an odd one out in that quartet, it’s the only non L-series lens released for the RF line to date, although that will soon change with the arrival of the RF 24-240mm F4-6.3 IS USM later this year. The RF 35mm F1.8 IS STM is one of four lenses announced alongside the Canon EOS R, the first camera in the company’s new EOS R mirrorless system.
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