---
title: "Sigma 40mm f/1.4 DG HSM Art"
description: "Sigma's cine-grade 40mm f/1.4 standard prime, a 2018 DSLR design remounted for L-Mount like all Sigma DG HSM lenses. Designed to a cine-lens standard with 8K-level resolution and near-zero distortion, at a hefty 1,295 g."
brand: "Sigma"
mount: L-Mount
focal_length: 40
aperture: 1.4
angle_of_view: 57
lens_type: "Prime"
lens_category: ["Normal"]
weight: 1295
year: 2019
weather_sealed: true
image_stabilization: false
price: 1399
focus: "Auto"
filter_size: 82
max_magn: 0.15
close_focus: 0.4
sku: "N/A"
diameter: 87.8
length: 155
date: 2026-10-12
draft: false
author: "Jan Wedekind"
featured_image: /lenses/sigma/sigma-40mm-f1-4.png
---

[DISCONTINUED](https://www.sigma-global.com/en/discontinued/?mount=l-mount)

From Sigma:

> High-end cine lenses used by professional filmmakers are required to have a consistent characteristic over the entire sensor at a high level, because these lenses are used to film a subject moving freely on the screen or while panning or tilting the camera. This represents exactly the concept of the Art Line; “optical performance comes first”, and the high-end cine lenses need to be designed with this idea. The SIGMA 40mm F1.4 DG HSM | Art is SIGMA’s first lens developed originally to live up to the sought-after angle of view and performance standard for a cine lens. This new perspective to ensure the quality of professional equipment for visual production empowers it to breakthrough also as an interchangeable photographic lens.
>
> This lens effectively arranges three FLD (“F” Low Dispersion) glass elements and three SLD (Special Low Dispersion) glass elements to correct axial chromatic aberration and magnification chromatic aberration to the limit. A sharp image is formed on the focal plane with the maximum aperture and contrast with the soft bokeh in the out of focus area highlights the solidity of a subject. With a distortion of 1% or below and a sagittal coma flare corrected to the limit, it demonstrates a consistent optical characteristic over the entire sensor. This is the ultimate large-diameter standard lens that has both 8K-compatible resolution and beautiful bokeh.
>
> The water- and oil-repellent coating on the front lens element, together with the dust and splash resistant structure*, ensures excellent performance even in the most challenging shooting conditions. The high-speed AF, thanks to the HSM (Hyper Sonic Motor) with an updated algorithm, captures instantaneous photography movement.

Like every Sigma DG HSM lens offered in L-Mount, this is the 2018 DSLR design with a native L-Mount fitted rather than a new mirrorless optic, which is why it is as large and heavy as it is. Sigma never made a DG DN successor at 40mm f/1.4.

[Official Website](https://www.sigma-global.com/en/lenses/a018_40_14/)

Reviews:

* Lenstip.com: [Sigma A 40 mm f/1.4 DG HSM](https://www.lenstip.com/548.1-Lens_review-Sigma_A_40_mm_f_1.4_DG_HSM.html), Arkadiusz Olech, Dec 2018
* Cameralabs: [Sigma 40mm f1.4 Art review](https://www.cameralabs.com/sigma-40mm-f1-4-art-review/), Thomas, Mar 2019
* Digital Photography School: [Review: Sigma 40mm f/1.4 DG HSM Art Lens](https://digital-photography-school.com/review-sigma-40mm-f1-4-lens/), Simon Ringsmuth, Apr 2019
* Phillip Reeve: [Review: Sigma 40mm 1.4 Art](https://phillipreeve.net/blog/review-sigma-40mm-1-4-art/), Bastian K, Aug 2019
* Amateur Photographer: [Sigma 40mm f/1.4 DG HSM Art review](https://amateurphotographer.com/review/sigma-40mm-f-1-4-dg-hsm-art/), Michael Topham, Sep 2023

YouTube:

* Christopher Frost: [Sigma 40mm f/1.4 DG HSM 'Art' lens review with samples](https://www.youtube.com/watch?v=_5kFV23AZ0Q), May 2019
* Gerald Undone: [Sigma 40mm f/1.4 Art Lens for SONY Review - Is BIGGER Better?](https://www.youtube.com/watch?v=z0YRD-Bv9Pw), Apr 2019
* Dustin Abbott: [Sigma 40mm F1.4 ART Review Part 1 | 4K](https://www.youtube.com/watch?v=xXcn192MoOk), Nov 2019
* Luis Gabriel Photography: [Sigma 40mm F/1.4 Art vs Zeiss Batis 40mm F/2.0 Real World comparison!](https://www.youtube.com/watch?v=fUMgdUVJAeU), Oct 2019