Canon and Sony each make a flagship 35mm lens, and on paper they're remarkably close in size, weight, price, and optical spec. But close on paper doesn't always mean close in practice, and the differences that do exist could matter depending on how you shoot.
Coming to you from Gordon Laing, this detailed head-to-head video pits the Canon RF 35mm f/1.4 L VCM directly against the Sony FE 35mm f/1.4 GM in a way that standalone reviews can't. Laing tests both lenses across landscapes, portraits, bokeh rendering, close-up reproduction, and focus breathing, using bodies matched as closely as possible in sensor resolution: a 45-megapixel Canon EOS R5 Mark I and a 42-megapixel Sony a7R III. Both lenses launched at different times, the Canon in June 2024 and the Sony back in January 2021, but both sit at roughly $1,500 new. Physically, they're nearly identical: same 67mm filter thread, within 3 mm of each other in length, and just 31 grams apart in weight.
One of the more interesting findings involves how each lens handles geometric distortion. When Laing pulls up raw files with profiles disabled in Adobe Camera Raw, the Canon shows substantial barrel distortion and heavy corner vignetting, both of which the profile corrects aggressively. The Sony, by contrast, shows almost no geometric distortion with or without the profile applied, though Camera Raw notes that some corrections are already being applied even in the "off" state. Whether that's because Sony's optical design is genuinely better corrected for geometry, or because Sony is pre-baking corrections into the raw file itself, Laing can't fully determine, even after testing in Capture One. On vignetting at f/1.4, the Canon loses about three stops from center to extreme corner, while the Sony loses just over four stops, though the falloff pattern differs enough that the practical impact ends up fairly similar for both.
Where things get more nuanced is in the portrait and bokeh tests. At f/1.4, the Canon resolves visibly crisper detail in the center of the frame, which Laing demonstrates clearly using his own face as a subject. The Sony looks sharp in isolation but noticeably softer next to the Canon, though some of that gap closes with additional sharpening in post. On bokeh, both lenses produce smooth, well-behaved out-of-focus blobs with no onion ringing or harsh outlining, and Laing calls it essentially a draw. The most decisive difference between the two lenses turns out to be focus breathing. The Canon minimizes it well, by design, since it's built as a hybrid photo-video lens. The Sony breathes considerably more at close focus distances, almost resembling a zoom in Laing's side-by-side freeze-frame comparison. That same breathing, however, gives the Sony a meaningful advantage in maximum reproduction at close range, a real difference for anyone shooting near-macro subjects on a single frame.
Laing also notes that Canon's RF mount currently restricts third-party full frame autofocus lenses, meaning the RF 35mm f/1.4 L VCM is essentially the only high-end 35mm option for EOS R users. Sony owners, on the other hand, now have the Sigma 35mm f/1.4 DG DN Art as a third option, released in early 2026, which Laing reviews separately and recommends seriously considering if you don't already own the Sony GM version.
Check out the video above for the full breakdown, sample images, and Laing's final verdict on which lens edges ahead in each specific category.
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