Quick Summary
The Sigma 20 mm F1.4 A AF DG HSM lens for Nikon mount is a full frame DSLR lens from Sigma’s Art range. It is described as the world’s first f1.4 20 mm lens for full frame DSLRs, and it includes a rounded 9 blade diaphragm, FLD, SLD and aspherical glass elements, plus Hypersonic AF for fast, silent autofocus.
Who It Is Best For
This lens suits Nikon mount DSLR owners looking for a wide angle Sigma Art lens with a fast f1.4 aperture. It will appeal to buyers who want a lens for full frame use and value autofocus performance, optical element design, and a Made in Japan build.
What To Know Before You Buy
It is a Nikon mount lens, so it is important to check compatibility with your camera before ordering. The aperture range is listed as f1.4 to f16.
Pros: Fast f1.4 aperture, rounded 9 blade diaphragm, and Hypersonic AF for silent autofocus.
Cons: Best suited to Nikon mount full frame DSLR use, so compatibility should be checked carefully.
Common Buyer Questions
What type of lens is this?
It is a Sigma 20 mm F1.4 A AF DG HSM lens for Nikon mount cameras.
Is it for full frame cameras?
Yes, it is described as a lens for full frame DSLRs.
What is the aperture range?
The aperture range is listed as f1.4 to f16.
Does it have autofocus?
Yes, it uses Hypersonic AF for high speed and silent autofocus.
What special glass elements does it use?
It features FLD, SLD and aspherical glass elements.
Where is it made?
It is made in Japan.
Key Details
| Detail | What it means in use |
|---|---|
| Brand | Sigma |
| Model | 20 mm F1.4 A AF DG HSM |
| Mount | Nikon mount |
| Lens type | Full frame DSLR lens |
| Range | f1.4 to f16 |
| Diaphragm | Rounded 9 blade diaphragm |
| Optical elements | FLD, SLD and aspherical glass elements |
| Autofocus | Hypersonic AF for high speed and silent autofocus |
| Origin | Made in Japan |
Final Buying View
If you want a Sigma wide angle lens for Nikon mount full frame DSLR use, this 20 mm F1.4 Art lens offers a fast aperture, autofocus, and a well specified optical design. It is a clear choice for buyers who want the listed features and can match the mount to their camera. Check compatibility before ordering, then choose it if the specification fits your setup.
