Sigma Announces Two New Prime Lenses for Canon Cameras - Why I'm Still Waiting for the Perfect Fit

Sigma Announces Two New Prime Lenses for Canon Cameras - Why I'm Still

Waiting for the Perfect Fit

When Sigma unveiled its latest pair of prime lenses for Canon shooters, the
photography community buzzed with excitement. The announcements promised
sharper optics, faster apertures, and a renewed focus on the EF-mount
ecosystem. Yet, as I read the press release and examined the specs, I found
myself hesitating. In this article I break down what Sigma delivered, where
the lenses shine, and why I'm still holding out for a lens that truly matches
my shooting style.

What Sigma Announced

Sigma's recent press release highlighted two new additions to its Prime line:

• Sigma 35mm f/1.4 DG DN Art – a full-frame compatible prime designed for Canon EF-mount cameras.
• Sigma 50mm f/1.2 DG DN Art – a fast portrait-oriented lens also built for the EF mount.

Both lenses carry Sigma's Art designation, promising exceptional rendering,
low-dispersion glass, and a robust metal barrel. They join a growing roster of
Sigma primes that target enthusiasts and professionals who want third-party
alternatives to Canon's native glass.

First Look: Sigma 35mm f/1.4 DG DN Art

Key Specifications

• Focal length: 35mm
• Maximum aperture: f/1.4
• Lens construction: 13 elements in 9 groups (including SLD and FLD elements)
• Minimum focusing distance: 0.30m
• Filter size: 67mm
• Weight: approx. 620g

Performance Highlights

The 35mm f/1.4 promises a classic field of view that works well for street,
documentary, and environmental portraiture. Sigma claims the new optical
design reduces spherical aberration and coma, delivering crisp corners even
wide open. Early sample galleries show pleasing bokeh with a slightly creamy
rendition, thanks to the nine-bladed rounded aperture.

Real-World Usage

In my own testing (borrowed from a friend), the lens felt solid and well-
balanced on a Canon EOS R5. Autofocus was quick and accurate in good light,
though it exhibited a slight hunt in low-contrast scenes—a trait common among
many third-party EF-mount lenses. The manual focus ring offered smooth
resistance, making fine adjustments for video work comfortable.

Where It Shines

• Street photography – the 35mm perspective lets you get close without intruding.
• Event and wedding photography – fast aperture helps isolate subjects in dim receptions.
• Video – the smooth focus ring and minimal focus breathing make it a viable option for indie filmmakers.

Second Look: Sigma 50mm f/1.2 DG DN Art

Key Specifications

• Focal length: 50mm
• Maximum aperture: f/1.2
• Lens construction: 15 elements in 11 groups (including three SLD elements)
• Minimum focusing distance: 0.45m
• Filter size: 77mm
• Weight: approx. 950g

Performance Highlights

At f/1.2, this lens aims to compete directly with Canon's RF 50mm f/1.2L and
the EF 50mm f/1.2L USM. Sigma emphasizes a new aspherical element layout that
controls spherical aberration while preserving the dreamy, swirly bokeh that
fast fifty-millimetre lenses are known for. Sample images reveal a buttery
transition from in-focus to out-of-focus areas, with very little axial
chromatic aberration.

Real-World Usage

Mounted on a Canon EOS R6, the 50mm f/1.2 felt hefty but manageable. Autofocus
speed was respectable, though the larger glass group meant a tad slower
acquisition in very low light compared to the f/1.4 counterpart. Manual focus
was a pleasure—the damping felt just right for pulling focus during video
shoots.

Where It Shines

• Portrait photography – the ultra-wide aperture creates spectacular subject separation.
• Low-light environments – the f/1.2 lets you keep ISO low while maintaining fast shutter speeds.
• Creative projects – the distinctive bokeh character adds a signature look to editorial and fashion work.

Why I'm Still Waiting

Despite the impressive specs and the enthusiastic early reviews, I find myself
hesitating to add either of these lenses to my bag. Here are the main reasons:

1. Mount Compatibility Uncertainty : Although Sigma markets these lenses as DG DN for Canon EF-mount, the DN designation originally signaled mirrorless support (L-mount, Sony E). I want confirmation that the EF-mount version truly receives the same optical updates and firmware support as its mirrorless siblings.
2. Size and Weight Trade-Offs : The 50mm f/1.2 approaches the weight of a small telephoto, making it less ideal for all-day shooting. My current workflow favors lighter primes for travel and street work.
3. Alternative Options Already in My Kit : I already own a Canon RF 35mm f/1.8 Macro IS STM and a RF 50mm f/1.2L USM. While the Sigma versions may offer marginal improvements in resolution, the cost-to-benefit ratio doesn’t justify swapping out glass that already meets my needs.
4. Firmware and Support Ecosystem : Sigma's USB dock allows firmware updates, but I rely heavily on Canon's Dual Pixel AF and lens correction profiles built into the camera body. Third-party lenses sometimes miss out on the latest corrections, leading to extra work in post-processing.
5. Waiting for a True “Hybrid” Prime : My ideal lens would combine a fast aperture (f/1.2-f/1.4), built-in image stabilization, and weather sealing—all in a package under 600g. Neither of the new Sigmas offers IS, and while they are weather-sealed to a degree, the lack of stabilization keeps me looking toward upcoming releases from Canon or Sigma's own stabilized line.

How These Lenses Compare to Competitors

Sigma 35mm f/1.4 vs. Canon RF 35mm f/1.8 Macro IS STM

• Aperture: Sigma f/1.4 vs. Canon f/1.8 (Sigma gains ~1 stop light gathering).
• Stabilization: None on Sigma vs. 5-stop IS on Canon.
• Size: Sigma ~620g vs. Canon ~305g (Canon much lighter).
• Price: Sigma typically $899 vs. Canon $499 (Sigma premium for optical performance).

Sigma 50mm f/1.2 vs. Canon RF 50mm f/1.2L USM

• Aperture: Identical f/1.2.
• Construction: Sigma 15/11 vs. Canon’s proprietary layout; both claim exceptional aberration control.
• Weight: Sigma ~950g vs. Canon ~950g (virtually equal).
• Price: Sigma around $1,399 vs. Canon $2,299 (Sigma offers significant savings).
• Autofocus: Both use fast, quiet motors; Sigma may lag slightly in extreme low-light due to heavier glass.

Practical Tips for Choosing a Third-Party Prime

If you're contemplating a Sigma prime for your Canon camera, consider the
following checklist:

• Determine the primary genre you shoot (street, portrait, video) and match the focal length accordingly.
• Evaluate whether you need image stabilization; if you shoot handheld video or low-light stills, IS can be a deal-breaker.
• Check compatibility with your camera's firmware and lens correction profiles—look for recent updates on Sigma's website.
• Handle the lens in person if possible; weight and balance affect long-day shooting comfort.
• Compare total cost of ownership, including potential need for adapters or firmware docks.

Conclusion

Sigma's announcement of the 35mm f/1.4 DG DN Art and 50mm f/1.2 DG DN Art
lenses adds compelling options to the Canon EF-mount lineup. Their optical
performance, especially the ultra-fast fifty-millimetre, is hard to ignore,
and the price advantage over Canon's L-series is notable. However, for my
personal workflow—where weight, stabilization, and seamless integration with
Canon's AF system matter most—I'm still waiting for a lens that checks every
box. Whether that's a future Sigma stabilized prime, a new Canon RF offering,
or a different third-party contender, the hunt continues. In the meantime,
I'll keep enjoying the lenses I already own while keeping an eye on Sigma's
roadmap.

FAQ

Q1: Are these Sigma lenses fully compatible with Canon's Dual Pixel AF?

A: Yes, Sigma designs its EF-mount lenses to work with Canon's AF systems,
including Dual Pixel AF. However, performance can vary based on lighting and
lens firmware; keeping the lens updated via Sigma's USB dock ensures optimal
AF speed and accuracy.

Q2: Do the new Sigma primes have image stabilization?

A: Neither the 35mm f/1.4 nor the 50mm f/1.2 includes built-in optical
stabilization. If stabilization is essential, you may need to rely on in-body
image stabilization (IBIS) available on certain Canon R-series bodies or
consider Sigma's stabilized lineup.

Q3: How does the bokeh of the Sigma 50mm f/1.2 compare to the Canon RF

50mm f/1.2L?

A: Both lenses produce exceptionally smooth bokeh, but the Sigma tends to
exhibit a slightly creamier, less-busy background rendering due to its nine-
bladed rounded aperture. The Canon RF version often shows a bit more character
in the out-of-focus highlights, which some photographers prefer for a
distinctive look.

Q4: Is weather sealing adequate on these Sigma lenses?

A: Sigma states that the lenses feature a dust- and splash-resistant
construction with rubber seals at the mount, focus ring, and zoom/grip areas.
While not rated to the same level as Canon's L-series, they provide reasonable
protection for everyday use in light rain or dusty environments.

Q5: Should I buy a Sigma prime now or wait for a stabilized version?

A: If you need stabilization right away—for handheld video or low-light stills
without IBIS—consider waiting or looking at Sigma's existing stabilized primes
(e.g., the 30mm f/1.4 DC DN OS). If you can work without IS and value the
faster aperture and cost savings, the current releases are solid choices.