The Sigma 28mm f/1.4 DG HSM Art (Amazon, B&H) is primarily a photography lens, though it will be used for video.
In this article let’s take a comprehensive look at the important features and specifications of the Sigma 28mm f/1.4 DG HSM Art and see how good it will perform specifically for video, cinematography and filmmaking.
I think it is important to mention that Sigma is a third party lens manufacturer and its performance cannot be justly compared to the native lenses.
The aim of this article is to provide you with enough information and perspective so you can decide for yourself whether this lens is right for your film or video.
Important: This article is a comprehensive overview of the lens with available information; and an analysis based on our experience shooting for almost two decades. It is not a hands-on review. If and when we get hold of the lens we’ll be sure to publish a detailed review. If this is not your cup of tea you can stop reading.
Here is an official release by Sigma showcasing the potential of their 28mm, 40mm and 105mm:
Click to what you want quickly:
- TLDR;
- What does DG HSM mean?
- Sony FE 28mm f/2 vs Sigma 28mm f/1.4 DG HSM Art
- Features:
- Control:
- Basics:
- Alternatives to the Sigma 28mm f/1.4 DG HSM Art
TLDR;
What you need to know for video work about the Sigma 28mm f/1.4 DG HSM Art (Amazon, B&H):
- The Sigma 28mm f/1.4 DG HSM Art is a great third party wide focal length lens.
- The f/1.4 aperture is amazing for low light work.
- It’s heavier compared to its competitors.
- 9 blade aperture for smoother bokeh.
- Has a 28cm minimum close focusing distance.
- The lens doesn’t have OS, but you will get some stabilization with a camera that has in built stabilization.
- It exhibits breathing.
Can be great for most following types of filmmaking:
- Travel filmmaking
- Wide shots
- Vlogging
- Documentary filmmaking
What does DG HSM mean?
According to Sigma, DG refers to the lenses that are designed specifically for full frame DSLR cameras. Sigma claims that their DG DN lenses are designed specifically and exclusively for full frame mirrorless cameras.
So while the DG HSM will work with a full frame mirrorless camera, but, according to Sigma, a DG DN lens will communicate better with the camera than the DG HSM lens.
HSM refers to their ring-type hypersonic autofocus motor in that lens.
Sony FE 28mm f/2 vs Sigma 28mm f/1.4 DG HSM Art
| Lens | Sony FE 28mm f/2 | Sigma 28mm f/1.4 DG HSM Art |
| Filter Thread | 49mm | 77mm |
| Size | 64mm x 60mm | 82.8mm × 133.7mm |
| Weight | 200g | 925g |
| Closest focusing distance | 0.29m / 0.96ft (AF) 0.25m / 0.82ft (MF) | 0.28m / 0.91ft |
| Max. Aperture | f/2 | f/1.4 |
| Min. Aperture | f/22 | f/16 |
| Converter compatibility | Compatible with ultra wide converter 21mm and fish eye converter 16mm. | N/A |
| Aperture Blades | 9 blades | 9 blades |
| Angle of View (Diagonal) | 75 | 75 |
| Price | $619 | $1,399 |
Sigma is a third party lens manufacturer, so this is not an apples to apples comparison. Native lenses will always have an edge over third party lens manufacturers, when it comes to the communication with the camera system. While being a third party lens manufacturer, Sigma has become a tough competitor to many major lens manufacturers.
The Sony FE 28mm f/2 (Amazon, B&H), being a native lens, has major advantages over the Sigma 28mm f/1.4 DG HSM Art (Amazon, B&H). It is lighter and smaller. This makes it the preferred lens for handheld or gimbal use out of the two.
The Sigma 28mm f/1.4 Art does give an extra one-third stop of light. That is not a huge advantage for Sigma as that one-third of a stop is easily manageable on the field. You will have an easier time finding the right filter for the Sigma 28mm f/1.4 DG HSM Art.
However, the Sigma 24mm f/1.4 DG HSM Art is much cheaper than the Sony 24mm f/1.4 GM.
Here’s a resolution comparison at maximum aperture:
The Sony FE 28mm f/2 seems to be less sharper and has poorer corner to corner performance than the Sigma 28mm f/1.4 DG HSM Art (Amazon, B&H).
For me, Sigma wins.
Features
Coverage
The Sigma 28mm f/1.4 DG HSM Art (Amazon, B&H) is a full frame lens. It is designed to completely cover a sensor the size of 36mm x 24mm.
If you are considering this lens for an APS-C sensor or other cinema camera, check out this article:
Focal Length
The focal length is 28mm. This is considered wide on a full frame 35mm sensor.
This focal range is very useful for wide angle shots, drone work. Being between 35mm and 24mm, this is a focal range perfect for long shots.
Aperture
The maximum aperture is f/1.4 and the minimum aperture is f/16.
Having f/1.4 is great for low light. Most people will use it at f/2 or f/2.8 for the purpose of getting optimum sharpness, and to get soft out of focus backgrounds.
The Sigma 28mm f/1.4 DG HSM Art (Amazon, B&H) has 9 diaphragm blades. One expects a smooth bokeh, considering the number of blades, but it’s not always a given. To know more about bokeh:
Resolution
From Sigma’s official MTF charts:
The Sigma 28mm f/1.4 DG HSM Art (Amazon, B&H) is sharp in the center and has a slight fall off at the edges.
With the variance in the Sagittal and Tangential lines, you can infer (somewhat) that the bokeh should be smooth enough.
If you really want this lens at its sharpest you’re better off stopping down to f/2 or even f/2.8 for best results.
If you are curious and want to read the MTF chart for yourself. Here’s a guide on how to read them easily.
Close Focus
The closest focusing distance of this lens is 28cm or 0.91 feet. That’s great for this focal length because you can also use it for close ups.
Image Stabilization
The Sigma 28mm f/1.4 DG HSM Art (Amazon, B&H) lens doesn’t have OS. This is not a huge disappointment for a wide lens. Not having image stabilization makes this lens a second choice for run and gun shoots. Using it cameras that have IBIS can provide it with some image stabilization.
Control
Manual focus system
The Sigma 28mm f/1.4 DG HSM Art (Amazon, B&H) has an infinite turn ring for its focus ring and can turn infinitely one way or the other. Unfortunately for videographers and cinematographers, the Sigma 28mm f/1.4 DG HSM Art is set to focus by wire by default and has no option to switch it to fly by wire.
What is the meaning of focus by wire and fly by wire?
Focus by wire: Let’s say you turn the focus ring to change focus from point A to B. You’d expect the focus to shift accordingly. When you stop point B will be in focus. Now bring the focus point back to A and try again, but at a different speed. Slower or faster, doesn’t matter. Now, even if you precisely rotate to the exact same degree, the focus will not be on point B! The speed of rotation determines which point it is focused on. That’s just completely useless for follow focus work. If an actor or person moves at a different speed, even slightly, you’ll never get the same focus. Avoid focus by wire lenses like the plague (for video work).
Fly by wire: The distance of focus shifted is directly proportional to the speed at which the ring is turned. This is how a manual focus ring is supposed to operate for video and cinematography.
This decision to exclude fly by wire or linear MF by Sigma will make this lens unsuitable for professional cinematographers and videographers.
Autofocus system
Sigma’s autofocus is improving day by day, but it is nowhere near the precision and reliability of Canon or Sony’s autofocus system. Keep in mind, that Sigma is a third party lens manufacturer, i.e. they do not make native lenses. Native lenses, such as Sony’s FE series and Canon’s EF and RF series, have always been better than third party lenses at communicating with their respective cameras.
I do not think anyone will purchase a Sigma lens for its autofocus performance.
Basics
Filter Thread
The Sigma 28mm f/1.4 DG HSM Art (Amazon, B&H) has a filter thread of 77mm. This is a common filter size. You won’t face any major trouble trying to find the right filters.
Build Quality
The majority of the lens exterior is plastic, though the lens doesn’t feel cheap.
The optical design consists of 17 elements in 12 groups, including aspherical lens, FLD glass and SLD glass.
Size and Weight
The Sigma 28mm f/1.4 DG HSM Art (Amazon, B&H) has a diameter of 82.8mm and a length of 133.7mm for the E-mount. It weighs around 925 grams for the E-mount. The L-mount variant of this lens is the heaviest of all mount variants at 960 grams.
Weather resistance
Sigma claims that all their Art lenses are weather resistant. But again this only holds true if the camera body you will be using is also weather sealed. No camera is truly and officially weather sealed, so the best you can hope for is reliable weather resistance.
This is an Art series lens and we can expect it to perform as such.
What’s in the box
This is what you get in the box (other than the lens):
- Case
- Petal Type Hood with lock (LH828-01)
While they have omitted the mention of the lens cap and rear cap on their website, I doubt that they will exclude such basic necessities.
The hood might be useful for photography, but the shape and design makes it mostly vestigial for video work. Some people like to put it on to protect the front element in case of a fall. The hood takes the impact and shatters, but saves the lens. I’d keep it on unless you have good reason not to.
Alternatives to the Sigma 28mm f/1.4 DG HSM Art Lens
For the E-mount, you have the option to go with the more affordable Sony FE 28mm f/2 (Amazon, B&H). The maximum aperture difference is not that much and the price difference is quite staggering.
Another substitute will be the Sony FE 24mm f/2.8 G (Amazon, B&H). This lens has linear MF or fly by wire, but also has smaller maximum aperture with lesser amount of blades. It also has a wider field of view.
I hope you found this overview of the Sigma 28mm f/1.4 DG HSM Art (Amazon, B&H) useful. If we have missed out on something, please let us know in the comments below.
