ART
85mm F1.2 DG
Dg os
85mm F1.2
DG
- Uncompromising resolution and beautiful bokeh to make the most of F1.2
- Overwhelming mobility that breaks the conventions of an 85mm F1.2
- A full range of functions and build quality that meet the demands of professionals
- Rounding out the F1.2 lineup across wide-angle, standard, and medium-telephoto focal lengths
| Angle of view | Telephoto | |
|---|---|---|
| Camera Type | Mirrorless | |
| Lens Mount | L-Mount, Sony E-mount | |
| Sensor Size | Full Frame | |
| Construction | 17 elements in 12 groups | |
| Angle of view | L-Mount: 28.6° Sony E-mount: 28.6° | |
| Number of diaphragm blades | 13 (rounded diaphragm) | |
| Minimum aperture | F16 | |
| Minimum focusing distance | 84cm | |
| Maximum magnification ratio | 1:8.9 | |
| Filter diameter | φ82mm | |
| Dimensions (diameter x length) | Sony E-mount ⌀ 87.2mm x 121.7mm |
|
| Weight (g) | Sony E-mount 905 g |
|
| Edition number | S026 | |
| Supplied Accessories | POUCH, LENS HOOD LH878-08, FRONT CAP LCF-82 IV, REAR CAP LCR III | |
| EAN-code | Sony E-mount 085126323653 |
|
| Specifications Info | * This product is developed, manufactured and sold based on the specifications of E-mount which was disclosed by Sony Corporation under the license agreement with Sony Corporation. |
|
Overwhelming resolving power
In addition to two SLD glass elements, glass with high anomalous dispersion is used to suppress the axial chromatic aberration inherent to large-aperture lenses to the utmost limit. Aspherical lens elements further thoroughly correct spherical aberration and sagittal coma flare. The lens boasts reliably high resolving power from the maximum aperture, fully bringing out the rendering that only F1.2 can offer. It captures every detail of the subject’s expression and texture, taking the quality of both photographs and video to a higher level.
Beautiful bokeh that makes the subject stand out
The combination of a large-aperture F1.2 and a medium-telephoto 85mm delivers an extremely shallow depth of field and beautiful, rich bokeh. The adoption of a 13-blade diaphragm maintains a near-circular bokeh even when the aperture is stopped down. Natural bokeh rendering that suppresses color bleeding and double-line bokeh makes the subject stand out impressively, bringing overwhelming three-dimensionality and immersion to portraits and video work.
Designed to minimize flare and ghosting
Flare and ghosting, which reduce image quality, are addressed under all conditions of incident light, based on the most advanced simulation technology. High backlight resistance enables clear and sharp images under any lighting conditions.
The smallest and lightest in its class for an 85mm F1.2
By effectively arranging aspherical lens elements within the focus groups, the number of lens elements making up the focus unit has been significantly reduced. Despite incorporating a complex floating mechanism, a precise mechanical design pared down to the absolute minimum has achieved the smallest and lightest weight in its class for an 85mm F1.2*1 at 905g*2. It can be used comfortably even during long shoots or in situations that demand mobility, dramatically enhancing agility on set.
*1. As an AF 85mm F1.2 interchangeable lens for full-frame mirrorless cameras. (As of September 2026 by SIGMA)
*2. These figures are for L-Mount.
Fast and quiet autofocusing with dual HLA
The fast and quiet AF driven by the dual HLA (High-response Linear Actuator) delivers reliable tracking performance for both stills and video. Even with the shallow depth of field of the maximum F1.2 aperture, it captures the subject accurately, enabling smooth and precise shooting in any scene.
The pride of a creative tool: the high build quality of the Art line
By constructing the lens from high-precision parts made of lightweight, high-strength materials such as TSC*1, it offers the rigidity and durability of the Art line without compromising portability, along with the build quality to serve as a reliable photographic tool over the long term.
*1. TSC (Thermally Stable Composite) is a type of polycarbonate with a thermal expansion rate similar to that of aluminum. It has a high affinity to metal parts, which contributes to high quality product manufacturing.
Designed to minimize focus breathing
Optimization of the focus group arrangement and aspherical shape significantly suppresses focus breathing. The change in angle of view due to focus shift is minimized, creating a natural-looking focus shift when recording video.
Various shooting assist functions
The lens is equipped with an AFL button in two locations, which can be assigned to a range of functions via the menu on selected cameras. In addition to the aperture ring, the lens is equipped with an aperture ring lock switch*1 and a click switch to turn the click on and off.
*1. If you turn it on in position A, the aperture ring will be locked in position A. If you turn it on in a position other than A, it will be locked in the range from open to minimum aperture, and it will not be possible to turn it to position A.
Dust- and splash-resistant structure*1 and water- and oil-repellent coating
In addition to a dust- and splash-resistant structure, the frontmost surface of the lens has a water- and oil-repellent coating applied, so that the lens can be used safely even in harsh outdoor environments.
*1. The product is designed to be dust- and splash-resistant but is not waterproof. When using the lens near water, etc., take care not to allow large amounts of water to splash on it. If water gets inside the lens, it may cause a major malfunction and render the lens unrepairable.
LENS CONSTRUCTION
|
|
|
|
|
MTF CHART
There are two types of MTF chart. One considers the diffraction quality of light, which is called "Diffraction MTF", and the other, "Geometrical MTF" does not.
The quality of light appears in the diffracted light, and becomes more distinct as the F value gets bigger, resulting in lower image quality. Also, diffracted light exists at every aperture, which is why Sigma has been releasing Diffraction MTF data from the beginning since it is very close to the actual image data.
The advantage of using "Geometric MTF" data is that it is easy to measure and calculate since it does not consider the diffraction quality of light, yet it tends to show higher values in the graph than actual images.
The readings at 10 lines per millimeter measure the lens's contrast ability ( red lines), repeating fine parallel lines spaced at 30 lines per millimeter measure the lens's sharpness ability (green lines), when the aperture is wide open.
Fine repeating line sets are created parallel to a diagonal line running from corner to corner of the frame, are called Sagittal lines (S) and sets of repeating lines vertical to these lines are drawn, called Moridional (M) line sets.
*The MTF chart gives the result at the wide-open aperture.
|
Spatial frequency |
S:Sagittal Line |
M: Meridional Line |
|
10lp/mm |
|
|
|
30lp/mm |
|
|
DIFFRACTION MTF
GEOMETRICAL MTF
HLA (High-response Linear Actuator)
HLA is Sigma's proprietary linear motor. It drives the focus lens directly without going through gears or other mechanical parts, resulting in quiet, high-precision autofocusing.
AAC (Advanced Amorphous Coating)
Sigma’s proprietary AAC (Advanced Amorphous Coating) technology employs a low-refractive-index amorphous layer to achieve outstanding anti-reflective performance. By significantly suppressing the internal reflections that cause ghosting and flare, it delivers exceptionally clear, high-contrast image quality.
Water and oil repellent coating
Incorporates a water and oil-repellent coating that allows water to be wiped away easily and prevents oil and fat from sticking to the surface, even in challenging shooting conditions. At the same time, the maintenance of the lens surface becomes easier.
Aperture ring
Aperture ring, designed to help users work intuitively
Aperture ring click switch
Mounted with a de-click function for removing clicks by the aperture ring click switch, enabling seamless operations that are especially useful such as during video shooting.
Aperture ring lock switch
A ring lock system to prevent from unintended movement of the aperture ring during shooting.rates a water and oil-repellent coating that allows water to be wiped away easily and prevents oil and fat from sticking to the surface, even in challenging shooting conditions. At the same time, the maintenance of the lens surface becomes easier.
AFL button
The AFL button can be assigned with various functions widens the range of operations available on the lens.
Focus Mode Switch
Using this swich, it is possible to switch the focus mode between AF and MF.
Dust and Splash Resistant Structure
This lens features a highly effective dust and splash resistant structure with special sealing at the mount connection, manual focus ring, zoom ring, and cover connection.
*Although this construction allows the lens to be used in light rain, it is not the same as being waterproof, so please prevent large amounts of water from splashing on the lens. It is often impractical to repair the internal mechanism, lens elements and electric components if they are damaged by water.
Mount Conversion Service available
Support for switching between linear and non-linear focus ring settings (for L-Mount only)
Compatible with Sigma USB Dock UD-11 (sold separately / for L-Mount only)
Every single lens undergoes Sigma’s proprietary MTF measuring system
OVERWHELMING RENDERING POWER AND UNPRECIDENTED MOBILITY.
A NEW PINNACLE FOR PROFESSIONALS.
This rich rendering brings unprecedented depth to your work.
