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Sigma 50mm F1 4 EX DG HSM Review | 54 Data compared

Avg. price in UK: ~£350
Avg. price in US: ~$500
Lens mount: Canon EF, Nikon F, Sony A, Pentax K, Sigma SA
Maximum focal length: 50 mm
Maximum aperture (telephoto end): 1.4
Optical image stabilization: no
Maximum angle of view: 46.8 °

Sigma 50mm F1 4 EX DG HSM review. Compare 54 technical specifications and user reviews to see how it ranks among camera lenses and if it is worth buying.

6.9

Good

6.4

Good

8.8

Excellent

7.3
Low-light photography
Score components:
70.0%
10
Maximum aperture (telephoto end)
30.0%
1.0
Optical image stabilization
4.9
Travel
Score components:
30.0%
9.0
Lens length
25.0%
7.1
Lens diameter
25.0%
1.0
Weather sealing (splashproof)
20.0%
1.0
Optical image stabilization

Best prices in UK

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#665 in Best Camera Lenses

Verdict

The Sigma 50mm f/1.4 EX DG HSM is a large-aperture standard prime lens featuring an optical construction of 8 elements in 6 groups, including a molded glass aspherical element to correct aberrations. Its key characteristics include a fast f/1.4 maximum aperture, a 9-blade rounded diaphragm for smooth bokeh, and a Hyper Sonic Motor (HSM) for quiet, high-speed autofocus with full-time manual override. Main pros include exceptional peripheral brightness with minimal vignetting for its class, high central sharpness, and a robust professional build quality. However, notable cons include its significant weight (approx. 505g) and bulky 77mm filter size compared to competitors, along with reported edge softness at wide apertures and potential autofocus inconsistency on certain camera bodies.

Technical Specifications of Sigma 50mm F1 4 EX DG HSM

Overall score

6.9

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Popularity

What it is: An indicator based on the number of reviews received by the camera lens.

When it matters: When you want to see which camera lenses attract the most buyer attention and review activity.

Mount & Format

1.0

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Lens type

What it is: The optical category that indicates whether the lens is a prime, zoom, macro, fisheye, or another design.

When it matters: When you are choosing between a prime, zoom, macro, or specialty lens for the kind of subjects you shoot.

Importance: LOW

prime

Lens mount

What it is: The mechanical and electronic interface that determines which cameras the lens can be attached to.

When it matters: When camera compatibility and access to the right lens ecosystem are central to your buying decision.

Importance: LOW

Canon EF, Nikon F, Sony A, Pentax K, Sigma SA

Sensor format coverage

What it is: The largest sensor size the lens is designed to cover without severe vignetting.

When it matters: When you need the lens to fully cover your camera sensor without heavy corner darkening.

Importance: LOW

Full-frame

Filter thread size

What it is: The diameter of the front filter thread used for screw-in filters and compatible accessories.

When it matters: When you plan to use screw-in filters such as polarizers, ND filters, or protective glass.

Importance: LOW

77 mm

Teleconverter compatibility

What it is: Whether the lens can be used with compatible teleconverters to extend focal length.

When it matters: When you want to extend reach for wildlife or sports without changing to a different long lens.

Importance: HIGH

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Optics & Aperture

8.2

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Minimum focal length

What it is: The shortest focal length the lens can provide, which determines its widest framing.

When it matters: When wide framing matters for landscapes, interiors, architecture, or travel shots.

Importance: LOW

50 mm

Maximum focal length

What it is: The longest focal length the lens can reach, which determines its telephoto reach.

When it matters: When you need more reach for wildlife, sports, stage events, or distant details.

Importance: LOW

50 mm

Optical zoom

What it is: The ratio between the longest and shortest focal lengths available in the lens zoom range.

When it matters: When you want one lens to cover a broader range of compositions without swapping glass.

Importance: LOW

?

Maximum angle of view

What it is: The widest scene the lens can capture at its shortest focal length.

When it matters: When you need to fit more of a room, skyline, or landscape into the frame.

Importance: LOW

46.8 °

Minimum angle of view

What it is: The narrowest scene the lens captures at its longest focal length.

When it matters: When you want tighter framing on faraway subjects without moving closer.

Importance: LOW

46.8 °

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Focus & Controls

4.5

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Focus motor

What it is: The autofocus drive system responsible for moving lens elements into focus.

When it matters: When fast, quiet autofocus matters for video, wildlife, street shots, or moving subjects.

Importance: LOW

HSM

Minimum focus distance

What it is: The shortest distance at which the lens can focus on a subject.

When it matters: When you like shooting details, food, flowers, or products from a very short distance.

Importance: MEDIUM

Maximum reproduction ratio

What it is: The highest magnification the lens can achieve when focusing at its closest distance.

When it matters: When close-up magnification matters for macro work, textures, or small product details.

Importance: MEDIUM

Full-time manual focus

What it is: The ability to adjust focus manually without leaving autofocus mode.

When it matters: When you want to fine-tune focus instantly without switching out of autofocus.

Importance: HIGH

Internal focusing

What it is: A focusing design in which internal elements move while the outer barrel length stays unchanged.

When it matters: When you use polarizers, gimbals, or close-up setups that benefit from a lens that does not extend while focusing.

Importance: HIGH

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Stabilization

4.2

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Optical image stabilization

What it is: A hardware system that shifts optical elements to counteract camera shake and reduce blur.

When it matters: When you want steadier handheld shots and less blur, especially in low light or at longer focal lengths.

Importance: HIGH

Stabilization effectiveness (CIPA stops)

What it is: The rated stabilizer benefit, measured in stops, under CIPA testing standards.

When it matters: When you are comparing stabilized lenses and want to know how much handheld shutter-speed advantage they offer.

Importance: HIGH

?

Build & Handling

6.1

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Weight

What it is: The total mass of the lens, affecting portability and handling balance on the camera body.

When it matters: When you carry a lens all day for travel, hiking, or event coverage and want to keep your kit manageable.

Importance: HIGH

Lens length

What it is: The physical length of the lens body from mount to front edge.

When it matters: When bag space, balance, or front clearance matters in a compact travel or video setup.

Importance: HIGH

Lens diameter

What it is: The widest outer diameter of the lens barrel.

When it matters: When grip comfort, filter size, or fit inside a tight camera bag matters to you.

Importance: MEDIUM

Weather sealing (splashproof)

What it is: Protective sealing intended to resist splashes, dust, and light environmental exposure.

When it matters: When you often shoot outdoors in light rain, dust, or changing conditions.

Importance: HIGH

Metal mount

What it is: A lens mount made of metal rather than plastic for greater durability at the camera connection point.

When it matters: When durability matters because you change lenses often or use heavier gear for work.

Importance: HIGH

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Lab Scores

8.3

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DxOMark overall score

What it is: The combined DxOMark lens rating based on lab-tested optical performance.

When it matters: When you want a quick lab-based summary of overall optical performance before comparing lenses in detail.

Importance: HIGH

?

DxOMark sharpness score

What it is: The DxOMark subscore that reflects how much detail the lens can resolve across the frame.

When it matters: When fine detail matters for landscapes, product work, or high-resolution cameras.

Importance: HIGH

?

DxOMark transmission

What it is: The measured light transmission of the lens, expressed as T-stop rather than nominal f-number.

When it matters: When real light loss matters for exposure consistency in studio, cinema, or mixed-lens shoots.

Importance: MEDIUM

DxOMark distortion

What it is: The DxOMark metric that measures how much the lens bends straight lines away from their true shape.

When it matters: When straight lines matter in architecture, interiors, copy work, or product photography.

Importance: MEDIUM

DxOMark vignetting

What it is: The DxOMark measurement of corner darkening relative to the center of the image.

When it matters: When even corner brightness matters for skies, studio backdrops, or clean product shots.

Importance: MEDIUM

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Sigma 50mm F1 4 EX DG HSM vs the average camera lens

Why is Sigma 50mm F1 4 EX DG HSM better than the average camera lens?

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1.4 lower f-number at telephoto end
Sigma 50mm F1 4 EX DG HSM has a brighter maximum telephoto aperture than the average camera lens (f/1.4 vs f/2.8). The average lens has a maximum telephoto aperture of f/2.8.
What it is: The widest aperture available at the long end of the zoom range, affecting light intake and background blur.
When it matters: When you shoot at the long end in low light or want stronger background blur for portraits and sports.
Importance: HIGH
Sigma 50mm F1 4 EX DG HSM has a brighter maximum telephoto aperture than the average camera lens (f/1.4 vs f/2.8). The average lens has a maximum telephoto aperture of f/2.8.1.4 vs 2.8
Has focus distance scale
Sigma 50mm F1 4 EX DG HSM has a focus distance scale, the average camera lens does not. 48.6% of camera lenses include a focus distance scale.
What it is: A marked scale that shows the approximate focus distance set on the lens.
When it matters: When you pre-focus manually for street, zone focusing, or repeatable tripod setups.
Importance: MEDIUM
Sigma 50mm F1 4 EX DG HSM has a focus distance scale, the average camera lens does not. 48.6% of camera lenses include a focus distance scale.
1.5 T-stop lower transmission value
Sigma 50mm F1 4 EX DG HSM has a lower T-stop value than the average camera lens (1.6 T-stop vs 3.1 T-stop). The average lens has a T-stop value of 3.1 T-stop.
What it is: The measured light transmission of the lens, expressed as T-stop rather than nominal f-number.
When it matters: When real light loss matters for exposure consistency in studio, cinema, or mixed-lens shoots.
Importance: MEDIUM
Sigma 50mm F1 4 EX DG HSM has a lower T-stop value than the average camera lens (1.6 T-stop vs 3.1 T-stop). The average lens has a T-stop value of 3.1 T-stop.1.6 T-stop vs 3.1 T-stop
23.8 mm shorter lens
Sigma 50mm F1 4 EX DG HSM is shorter than the average camera lens (68.2 mm vs 92 mm). The average lens has a length of 92 mm.
What it is: The physical length of the lens body from mount to front edge.
When it matters: When bag space, balance, or front clearance matters in a compact travel or video setup.
Importance: HIGH
Sigma 50mm F1 4 EX DG HSM is shorter than the average camera lens (68.2 mm vs 92 mm). The average lens has a length of 92 mm.68.2 mm vs 92 mm
1.4 lower f-number at telephoto end
Sigma 50mm F1 4 EX DG HSM has a brighter maximum telephoto aperture than the average camera lens (f/1.4 vs f/2.8). The average lens has a maximum telephoto aperture of f/2.8.
Has focus distance scale
Sigma 50mm F1 4 EX DG HSM has a focus distance scale, the average camera lens does not. 48.6% of camera lenses include a focus distance scale.
23.8 mm shorter lens
Sigma 50mm F1 4 EX DG HSM is shorter than the average camera lens (68.2 mm vs 92 mm). The average lens has a length of 92 mm.
1.5 T-stop lower transmission value
Sigma 50mm F1 4 EX DG HSM has a lower T-stop value than the average camera lens (1.6 T-stop vs 3.1 T-stop). The average lens has a T-stop value of 3.1 T-stop.

Optics & Aperture

Focus & Controls

Build & Handling

Why is Sigma 50mm F1 4 EX DG HSM worse than the average camera lens?

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2 fewer low-dispersion elements
Sigma 50mm F1 4 EX DG HSM has fewer low-dispersion elements than the average camera lens (0 vs 2). The average lens has 2 low-dispersion elements.
1 fewer aspherical elements
Sigma 50mm F1 4 EX DG HSM has fewer aspherical elements than the average camera lens (1 vs 2). The average lens has 2 aspherical elements.
No internal focusing
Sigma 50mm F1 4 EX DG HSM does not support internal focusing, the average camera lens does. 83.7% of camera lenses support internal focusing.
0.15 m longer minimum focus distance
Sigma 50mm F1 4 EX DG HSM has a higher minimum focus distance than the average camera lens (0.5 m vs 0.3 m). The average lens has a minimum focus distance of 0.3 m.
0.05 x lower maximum reproduction ratio
Sigma 50mm F1 4 EX DG HSM has a lower maximum reproduction ratio than the average camera lens (0.1x vs 0.192x). The average lens has a maximum reproduction ratio of 0.192x.
Not weather-sealed
Sigma 50mm F1 4 EX DG HSM does not support weather sealing, the average camera lens does. 50.3% of camera lenses support weather sealing.
Older release date
Sigma 50mm F1 4 EX DG HSM was released earlier than the average camera lens.
March 2008
7.5 mm wider lens barrel
Sigma 50mm F1 4 EX DG HSM is wider than the average camera lens (84.5 mm vs 77 mm). The average lens has a diameter of 77 mm.
0.4 EV more vignetting
Sigma 50mm F1 4 EX DG HSM has more vignetting than the average camera lens (1.6 EV vs 1.2 EV). The average lens has vignetting of 1.2 EV.
0.1 % higher optical distortion
Sigma 50mm F1 4 EX DG HSM has a higher optical distortion than the average camera lens (0.4% vs 0.3%). The average lens has optical distortion of 0.3%.
Not weather-sealed
Sigma 50mm F1 4 EX DG HSM does not support weather sealing, the average camera lens does. 50.3% of camera lenses support weather sealing.
What it is: Protective sealing intended to resist splashes, dust, and light environmental exposure.
When it matters: When you often shoot outdoors in light rain, dust, or changing conditions.
Importance: HIGH
Sigma 50mm F1 4 EX DG HSM does not support weather sealing, the average camera lens does. 50.3% of camera lenses support weather sealing.
No internal focusing
Sigma 50mm F1 4 EX DG HSM does not support internal focusing, the average camera lens does. 83.7% of camera lenses support internal focusing.
What it is: A focusing design in which internal elements move while the outer barrel length stays unchanged.
When it matters: When you use polarizers, gimbals, or close-up setups that benefit from a lens that does not extend while focusing.
Importance: HIGH
Sigma 50mm F1 4 EX DG HSM does not support internal focusing, the average camera lens does. 83.7% of camera lenses support internal focusing.
0.4 EV more vignetting
Sigma 50mm F1 4 EX DG HSM has more vignetting than the average camera lens (1.6 EV vs 1.2 EV). The average lens has vignetting of 1.2 EV.
What it is: The DxOMark measurement of corner darkening relative to the center of the image.
When it matters: When even corner brightness matters for skies, studio backdrops, or clean product shots.
Importance: MEDIUM
Sigma 50mm F1 4 EX DG HSM has more vignetting than the average camera lens (1.6 EV vs 1.2 EV). The average lens has vignetting of 1.2 EV.1.600 EV vs 1.2 EV
2 fewer low-dispersion elements
Sigma 50mm F1 4 EX DG HSM has fewer low-dispersion elements than the average camera lens (0 vs 2). The average lens has 2 low-dispersion elements.
What it is: Optical elements designed to reduce color fringing by controlling how different wavelengths focus.
When it matters: When you want cleaner edges and less color fringing in high-contrast scenes.
Importance: MEDIUM
Sigma 50mm F1 4 EX DG HSM has fewer low-dispersion elements than the average camera lens (0 vs 2). The average lens has 2 low-dispersion elements.0 vs 2
Older release date
Sigma 50mm F1 4 EX DG HSM was released earlier than the average camera lens.
March 2008
What it is: The date when the lens model was first officially introduced.
When it matters: When you prefer a newer optical design with more modern autofocus, coatings, or stabilization features.
Importance: LOW
Sigma 50mm F1 4 EX DG HSM was released earlier than the average camera lens.2008 vs 2016
7.5 mm wider lens barrel
Sigma 50mm F1 4 EX DG HSM is wider than the average camera lens (84.5 mm vs 77 mm). The average lens has a diameter of 77 mm.
What it is: The widest outer diameter of the lens barrel.
When it matters: When grip comfort, filter size, or fit inside a tight camera bag matters to you.
Importance: MEDIUM
Sigma 50mm F1 4 EX DG HSM is wider than the average camera lens (84.5 mm vs 77 mm). The average lens has a diameter of 77 mm.84.5 mm vs 77 mm
0.1 % higher optical distortion
Sigma 50mm F1 4 EX DG HSM has a higher optical distortion than the average camera lens (0.4% vs 0.3%). The average lens has optical distortion of 0.3%.
What it is: The DxOMark metric that measures how much the lens bends straight lines away from their true shape.
When it matters: When straight lines matter in architecture, interiors, copy work, or product photography.
Importance: MEDIUM
Sigma 50mm F1 4 EX DG HSM has a higher optical distortion than the average camera lens (0.4% vs 0.3%). The average lens has optical distortion of 0.3%.0.4 % vs 0.3 %
0.15 m longer minimum focus distance
Sigma 50mm F1 4 EX DG HSM has a higher minimum focus distance than the average camera lens (0.5 m vs 0.3 m). The average lens has a minimum focus distance of 0.3 m.
What it is: The shortest distance at which the lens can focus on a subject.
When it matters: When you like shooting details, food, flowers, or products from a very short distance.
Importance: MEDIUM
Sigma 50mm F1 4 EX DG HSM has a higher minimum focus distance than the average camera lens (0.5 m vs 0.3 m). The average lens has a minimum focus distance of 0.3 m.0.45 m vs 0.3 m

Optics & Aperture

Focus & Controls

Build & Handling

Graphic comparison of Sigma 50mm F1 4 EX DG HSM and

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Third-party reviews

United Kingdom

United States

(Reviews last updated: July 2026)

What customers like about Sigma 50mm F1 4 EX DG HSM?

Excellent center sharpness especially when stopped down to f/2 or f/2.8
High-quality build with a solid, professional feel and metal mount
Fast and quiet autofocus thanks to the Hyper Sonic Motor (HSM)
Superior low-light performance due to the bright f/1.4 maximum aperture
Pleasing bokeh (background blur) and overall image character
Good control over chromatic aberration and flare resistance
Includes helpful accessories like a lens hood and carrying case

What customers dislike about Sigma 50mm F1 4 EX DG HSM?

Softness and loss of detail at the corners, even at narrower apertures
Noticeably large and heavy compared to standard 50mm f/1.4 alternatives
Commonly reported autofocus consistency and accuracy issues (front/back focusing)
Can be soft or 'dreamy' when used wide open at f/1.4
Large 77mm filter size makes filters more expensive
Lack of weather sealing for use in harsh conditions
Higher price point compared to contemporary entry-level 50mm primes

Expert reviews

dpreview.com

18/08/2008

Summary of the review

Sigma 50mm F1.4 EX DG HSM review - DPReview

The DPReview evaluation of the Sigma 50mm F1.4 EX DG HSM highlights a premium lens featuring an oversized optical design, delivering class-leading, high sharpness in the center at F1.4, along with low vignetting and a robust build with quick, silent HSM autofocus. However, the lens is notably large and heavy (505g), while also suffering from corner softness at wide apertures, requiring significant stopping down to improve peripheral resolution. Additional drawbacks include lackluster close-focusing capabilities, which result in 0.15x magnification and noticeable lateral chromatic aberration.

the-digital-picture.com

25/11/2008

Summary of the review

Sigma 50mm f/1.4 EX DG HSM Lens Review - The-Digital-Picture

The Sigma 50mm f/1.4 EX DG HSM lens is highlighted as a high-value alternative offering superior aesthetic rendering, smooth bokeh, and excellent center sharpness at wide apertures. Its robust build, 77mm filter size for reduced vignetting, and fast f/1.4 capability are listed as key pros, creating a premium feel compared to standard native lenses. Conversely, the review notes significant cons, specifically citing inconsistent, inaccurate autofocus performance and a bulky, heavy design for a 50mm prime. While it performs well in the center, corner sharpness on full-frame cameras requires stopping down to f/5.6 or smaller to reach maximum potential.

imaging-resource.com

29/03/2009

Summary of the review

Sigma 50mm f/1.4 EX DG HSM - Imaging Resource

The Sigma 50mm f/1.4 EX DG HSM is a fast prime lens designed for multiple SLR camera mounts that features a heavy 505-gram build and requires 77mm filters. Its strongest advantages include excellent wide-open sharpness compared to many of its peers, exceptionally strong control over chromatic aberration, and low barrel distortion (.25%.4% on full-frame). Additionally, its Hypersonic Motor (HSM) provides fast, near-silent autofocus with full-time manual focus override. The lens also boasts solid build quality with a metal mount, and it includes a petal-shaped lens hood that reverses easily for storage. However, the lens suffers from notable performance flaws when mounted on full-frame camera bodies. Most prominently, it exhibits extreme corner softness wide open at f/1.4, requiring users to stop down to f/5.6 to achieve uniform edge-to-edge sharpness. Significant vignetting is also present on full-frame sensors, where the corners are 1 1/4 EV darker than the center at f/1.4, a light falloff that never fully disappears and levels off at a consistent half-stop from f/4 onward. Finally, it has poor macro capabilities with a low 0.14x magnification and lacks an...

ephotozine.com

06/01/2011

Summary of the review

Sigma 50mm f/1.4 EX DG HSM Interchangeable Lens Review - ePHOTOzine

The Sigma 50mm f/1.4 EX DG HSM is a rugged, pro-level lens featuring a textured, durable chassis and a fast, quiet Hyper-Sonic Motor (HSM) for autofocus. It delivers excellent performance for shallow depth-of-field shooting and boasts a well-weighted focus ring, though the exterior finish is prone to showing marks. Optically, the lens is soft when used wide open at f/1.4, necessitating stopping down for maximum sharpness to overcome minor fringing and corner softness.

samhurdphotography.com

15/11/2011

Summary of the review

Gear Review: Sigma 50mm f/1.4 EX DG HSM - Sam Hurd Photography

📝 The Sigma 50mm f/1.4 EX DG HSM is the absolute best 50mm option for Nikon shooters looking for a versatile prime lens, according to photographer Sam Hurd. Despite costing $500, the lens suffers from a plastic build rather than metal, and it has a sketchy front glass element that can slowly unscrew and fall off over time. However, the lens easily outshines Nikon's own 50mm 1.4D and 1.4G offerings by delivering exceptional contrast and glass-cutting sharpness when shot completely wide open. In real-world use, the lens provides an ultra-quiet Hyper Sonic Motor (HSM) that autofocuses much faster than Nikon equivalents, despite a slightly stuttering or "jumpy" feel when locking onto focus points. The manual focus ring is small and lacks a seamless override system, making it less than ideal for manual shooters. Even so, the lens delivers a magical, dreamy bokeh that makes it perfect for group portraits and creative wedding photography. Ultimately, its superior optical performance easily justifies its high price tag and beats out the competition.

photographylife.com

03/07/2020

Summary of the review

Sigma 50mm f/1.4 EX DG HSM Review - Photography Life 💡 Quick Reminder: This lens is the classic "EX" version with the 77mm filter thread. It is disti...

The Photography Life review of the Sigma 50mm f/1.4 EX DG HSM highlights fast autofocus and low barrel distortion (0.98%) as key advantages. However, the lens suffers from poor corner sharpness at f/1.4, requiring stopping down to f/2.8 or f/4 for better results, alongside significant longitudinal chromatic aberration and purple fringing. Constructively, the lens is described as bulky and heavy, handling more like an 85mm prime. Due to issues with distracting bokeh and serious front-focusing flaws, along with being outperformed by cheaper alternatives, the review advises against purchasing this older model.

photozone.de

01/07/2008

Summary of the review

Sigma AF 50mm f/1.4 EX DG HSM (Canon) - Review / Test Report

in english language, be very specific, mention pros and cons inside You sent: 1 tab and said: 2 paragraphs summary of this review in english language, be very specific, mention pros and cons inside Sigma AF 50mm f/1.4 EX DG HSM (Canon) - Review / Test Report 2 paragraphs summary of this review in english language, be very specific, mention pros and cons inside

whatdigitalcamera.com

01/02/2010

Summary of the review

Sigma 50mm f/1.4 EX DG HSM review

The What Digital Camera review by Jon Tarrant highlights the Sigma 50mm f/1.4 EX DG HSM as an amazing, high-specification prime lens that delivers elevated, remarkable results justified by its premium price tag. Optically, the lens excels with a distinct performance "sweet spot" spanning from f/2.8 to between f/5.6 and f/8, where resolution consistently stays above 0.4 cycles-per-pixel. The review praises its fast and accurate internal automatic focusing, which allows photographers to apply manual focus adjustments without changing focus modes. Additionally, the lens features a wide, comfortably located manual focus ring, a depth-of-field window, a large front element with a 77mm filter thread, and comes packaged with a premium padded pouch. However, the review details a few notable drawbacks, primarily concerning the physical design and manual handling of the lens. Tipping the scales at just over 0.5kg, the lens is nearly twice the weight of standard f/1.4 lenses, closely mimicking the mass and appearance of an f/1.2 prime. Furthermore, the reviewer notes that the manual focusing mechanism feels heavy to operate, whether it is selected using the physical slider or...

thomphotos.fr

20/06/2011

Summary of the review

Sigma 50mm F1.4 EX DG HSM Lens Review

The Sigma 50mm F1.4 EX DG HSM is a solid focal length lens built for full-frame cameras (compatible with APS-C) across Canon, Nikon, Pentax, and Sony mounts. The reviewer purchased it as a durable replacement for a fragile Canon equivalent and heavily praises its mechanical build quality, noting it survived drops, dust, rain, and mud over three years of intensive use. Optically, the lens delivers excellent sharpness right from its maximum f/1.4 aperture, backed by a fast, high-performance ultrasonic autofocus system ideal for sports and low-light shooting. Its 9-blade diaphragm creates a very smooth bokeh with beautiful background circles, making it highly effective for portraits, reportage, and even astrophotography. It also includes welcome accessories omitted by competitor brands, specifically a lens hood and a protective pouch.

digitalcamaralens.com

31/10/2025

Summary of the review

Sigma 50mm f/1.4 EX DG HSM - Review

The Sigma 50mm f/1.4 EX DG HSM is reviewed as a highly robust and large standard prime lens, noted for being one of the largest 50mm lenses available on the market at the time of its evaluation. It features solid EX-series construction and utilizes internal focusing, meaning the front optical group moves inside the chassis. By attaching a 77mm filter, the lens can be completely sealed from the outside environment. Equipped with Sigma's Hyper-Sonic Motor (HSM), the lens delivers stable and consistent autofocus without requiring fine micro-adjustments when tested on bodies like the Canon 1Ds MkIII and 50D. The primary advantages highlighted in the review include its excellent build quality, efficient internal sealing capability, and a fast, reliable HSM autofocus system that handles consecutive focus tracking well. On the downside, the lens has a very bulky and heavy footprint compared to other lenses in its focal length class. Additionally, the manual focus ring serves as a significant drawback, as it suffers from an overly short travel distance (arqueo escueto) and rough, uneven rotation (giro tosco), lacking the smoothness expected from...

xatakafoto.com

Julio 24, 2014

Summary of the review

Sigma 50mm f/1.4 DG HSM Art Review: Technical Comparison with the EX Version

📸 Sigma 50mm f/1.4 Art Review Summary The Sigma 50mm 1.4 DG HSM "Art" lens delivers exceptional, elite-tier optical performance that rivals ultra-premium brands like Zeiss, making its roughly €999 price tag feel like an absolute bargain compared to first-party competitors like the Canon 50mm f/1.2 or Nikkor 58mm f/1.4. Built with an exquisite, robust design, this full-frame lens shines in image quality, offering stunningly high sharpness and definition even when shooting wide open or stopped down to f/2.8. Photographers will benefit from a highly effective Hyper Sonic Motor (HSM) that provides a smooth, acceptably fast autofocus performance—outpacing heavier lenses like Canon's 50mm f/1.2—making it an excellent, versatile tool for spontaneous street photography. On the technical side, the lens features a 9-blade rounded diaphragm that produces a tremendous, beautiful bokeh effect while maintaining remarkable control over optical flaws. Its pros include virtually non-existent barrel distortion, well-managed vignetting at maximum apertures, accurate color rendering, and almost zero chromatic aberration even at f/1.4. However, the review notes a couple of minor cons: the lens may occasionally experience slight flare issues under specific...

lucamoglia.it

27/07/2026

Summary of the review

The Ultimate 50mm Lens Test: Sigma 1.4, Canon 1.4, and 1.8 Compared

In a detailed comparison on LucaMoglia.it, photographer Luca Moglia evaluates the Sigma 50mm f/1.4 EX DG HSM, Canon EF 50mm f/1.4 USM, and Canon EF 50mm f/1.8 II on a Canon 5D. The Sigma 50mm f/1.4 is highlighted for superior wide-open sharpness at f/1.4 and robust build quality, while the Canon 50mm f/1.4 USM offers excellent sharpness when stopped down and a compact form factor. The Canon 50mm f/1.8 II is positioned strictly as a budget-friendly, lightweight alternative. Technical drawbacks identified in the review include the Sigma's significant weight, the Canon f/1.4's soft, "dreamy" performance at its widest aperture, and the Canon f/1.8's cheap construction and loud, moving autofocus motor. The Sigma also shows softer corner resolution compared to the Canon 50mm f/1.4 at f/4, and the f/1.8 version produces harsh bokeh due to its five-blade aperture.

photo4u.it

12/10/2020

Summary of the review

Sigma 50mm f/1.4 EX DG HSM review

In this review from the photo4u.it forum, user Raffaele Pezzella shares his impressions of the Sigma 50mm 1.4 EX DG HSM, a full-frame prime lens he uses on a Nikon D7200 APS-C body where it functions as a 75mm equivalent portrait lens. The reviewer highly praises the lens for its exceptional construction and performance, noting a robust plastic body, a metal mount, and a smooth, precise manual focus ring. Its primary strengths are an ultra-fast, completely silent ultrasonic autofocus motor that rarely misses, and a 9-blade rounded diaphragm that produces a highly desirable, "cremoso" (creamy) and "metaphysical" bokeh. In terms of sharpness, the lens is described as soft but usable at f/1.4, becoming great at f/2.8, razor-sharp from f/4 onwards, and achieving outstanding edge-to-edge sharpness at f/8 with almost no vignetting or distortion. However, the review highlights several distinct drawbacks regarding the physical size and optical performance in harsh lighting. Weighing over 500 grams and sporting a massive 77mm filter thread, the lens is quite heavy and creates a forward-heavy balance even on a substantial DSLR like the D7200. Optically,...

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