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Sigma 105mm F1.4 DG HSM Art Lens for DSLR Cameras, SIGMA SA-Mount, Ideal for Portrait Photographies

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Key Features
- Fast f/1.4 Aperture: Enables strong background separation and clean low-light performance.
- Advanced Optical Design: 17 elements in 12 groups for high resolution and controlled aberrations.
- Rounded 9-Blade Diaphragm: Produces smooth and creamy background bokeh.
- Full-Time Manual Override: Allows precise MF adjustments even while using autofocus.
- Weather-Resistant Build: Seals help protect against dust and light moisture.
- Arca-Swiss Tripod Collar: Provides stable support for heavy lens setups and quick rotation.
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Sigma 105mm F1.4 DG HSM Art Lens for DSLR Cameras, SIGMA SA-Mount, Ideal for Portrait Photographies Overview
Description
The Sigma 105mm F1.4 DG HSM Art is a professional short-telephoto prime designed for photographers who demand exceptional resolution, smooth bokeh, and powerful low-light performance. Its fast f/1.4 aperture and complex optical formula deliver crisp, high-contrast images with dramatic subject isolation, making it a preferred choice for portrait, wedding, fine-art, and low-light photographers.
Engineered as part of Sigma's acclaimed Art series, this lens incorporates 17 optical elements in 12 groups, including FLD, SLD, and aspherical components for superior aberration control. A weather-sealed construction, water-repellent coatings, and a removable Arca-Swiss tripod collar enhance durability and stability in field and studio environments. Available across multiple mounts, it offers broad compatibility and reliable performance for high-resolution full-frame camera systems.
This lens is optimized for portrait and low-light shooters seeking exceptional sharpness, smooth tonal transitions, and reliable performance in challenging environments. Its large front element and optical corrections deliver strong color accuracy and minimal vignetting even at f/1.4.
Problem
Photographers often struggle with lenses that do not provide sufficient background separation, poor low-light capability, or inconsistent optical performance at wide apertures.
- Lack of shallow depth of field makes subjects blend into backgrounds.
- Low-light scenes often produce noise, blur, or missed focus.
- Some lenses exhibit chromatic aberration and loss of contrast at fast apertures.
Solution
The Sigma 105mm F1.4 DG HSM Art solves these issues with its ultra-wide f/1.4 aperture, advanced optical engineering, and robust build. It delivers cleaner low-light images, stronger compression for portraits, and high-contrast rendering across the frame.
Benefits
- High Resolution Output: Ideal for studio and high-pixel cameras.
- Superior Bokeh Rendering: Produces smooth backgrounds that isolate subjects effectively.
- Improved Low-Light Capability: Captures clearer images with less noise.
- Reliable Build: Weather sealing and coatings support outdoor or demanding use.
Applications
- Portrait photography with dramatic subject isolation.
- Wedding and event photography in controlled or low-light venues.
- Fine-art, creative, or astrophotography demanding high sharpness and minimal aberrations.
Why Choose This Lens
- Delivers one of the most dramatic combinations of sharpness, bokeh, and low-light performance among 105mm primes.
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Specifications
| Model Name / Number | 105mm F1.4 DG HSM Art |
| Lens Type | Prime Telephoto Lens |
| Intended Use | Photography |
| Lens Construction | 17 elements in 12 groups |
| Focal Length | 105mm (fixed) |
| Maximum Aperture | f/1.4 |
| Minimum Aperture | f/16 |
| Aperture Blades | 9 (rounded) |
| Minimum Focus Distance | 100 cm |
| Maximum Magnification | 1:8.3 |
| Filter Thread | 105 mm |
| Mount Options | Canon EF, Nikon F, SIGMA SA, Sony E, L-Mount |
| Dimensions | 115.9 mm 131.5157.5 mm (varies by mount) |
| Weight | 16451745 g (varies by mount) |
| Weather Sealing | Yes (dust and splash-resistant) |
| Brand | SIGMA |
| Manufacturer SKU | 259956 |
| UPC | 85126259563 |
What’s included
- 1- 105mm F1.4 DG HSM Art Lens, SIGMA SA-Mount
- 1- LH1113-01 Lens Hood
- 1- LCF-105 III 105mm Lens Cap
- 1- LCR II Rear Lens Cap
- 1- TS-111 Tripod Collar
- 1- PT-21 Protective Cover
- 1- Lens Case
Compatibility
| Canon EF series (full-frame) | Nikon F series (full-frame) | SIGMA SA series (full-frame) | Sony E-Mount series (full-frame) | L-Mount Alliance series (full-frame) |
| Canon EOS 5D series | Nikon D800/D850 series | Sigma fp series | Sony alpha 7 series | Panasonic S series |
| Canon EOS-1D series | Nikon Z series (with FTZ adapter) | Sony alpha 9 series | Leica SL series |
FAQ
Is this lens good for low-light photography?
Yes, the f/1.4 aperture allows more light in, enabling cleaner indoor and evening shots.
Does it produce smooth background bokeh?
Yes, the rounded 9-blade diaphragm offers smooth out-of-focus rendering.
What camera systems is it compatible with?
It supports Canon EF, Nikon F, SIGMA SA, Sony E, and L-Mount systems.
Is this lens weather sealed?
Yes, it includes dust- and splash-resistant sealing for outdoor reliability.
Is the tripod collar removable?
Yes, and it includes an Arca-Swiss compatible foot for stable mounting.
Can I manually focus while in AF mode?
Yes, it supports full-time manual focus override.
Is it suitable for astrophotography?
Yes, its fast aperture and good coma control work well for night-sky shooting.
Is there optical image stabilization?
No, stabilization is not built in, so a tripod may be recommended for long exposures.
Does the front element rotate?
No, the front element stays fixed, allowing use of filters without alignment issues.
Is it heavy?
Yes, the lens weighs around 1.61.7 kg depending on mount and benefits from tripod support.

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