Andy Westlake investigates the latest addition to Sigma’s ‘Art’ line of high-quality fast primes

Product Overview

Sigma 24mm f/1.4 DG HSM | A

Product:

Sigma 24mm f/1.4 DG HSM | A review

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Price as reviewed:

£799.00

Sigma 24mm f/1.4 DG HSM | A review – Shading

Fast primes invariably show visible vignetting, and in the case of the Sigma 24mm we see a fall-off at the corners of around 1.6 stops at f/1.4. Stop down to f/2 and this reduces considerably, and by f/2.8 it’s essentially gone altogether. If the vignetting at large apertures disturbs you, it can be easily fixed using programs such as Adobe Lightroom or DxO Optics Pro.

Sigma 24mm f/1.4 DG HSM | Art shading at f/1.4

Sigma 24mm f/1.4 DG HSM | Art shading at f/1.4

Sigma 24mm f/1.4 DG HSM | Art shading at f/2

Sigma 24mm f/1.4 DG HSM | Art shading at f/2

Sigma 24mm f/1.4 DG HSM | Art shading at f/2.8

Sigma 24mm f/1.4 DG HSM | Art shading at f/2.8

Sigma 24mm f/1.4 DG HSM | Art shading at f/4

Sigma 24mm f/1.4 DG HSM | Art shading at f/4

This example illustrates the vignetting in real-world use. Shot at f/1.4 on the Canon EOS 5D, the vignetting is gradual across the frame, and far from unattractive. It can be corrected easily enough in post-processing, if desired.

Sigma24mm-vignetting

The lens gives visible vignetting wide open, but with a gradual falloff in illumination across the frame. Canon EOS 5D, f/1.4

  1. 1. Sigma 24mm f/1.4 DG HSM | A review – Introduction
  2. 2. Sigma 24mm f/1.4 DG HSM | A review – Features
  3. 3. Sigma 24mm f/1.4 DG HSM | A review – Build and handling
  4. 4. Sigma 24mm f/1.4 DG HSM | A review – Image quality
  5. 5. Sigma 24mm f/1.4 DG HSM | A review – Resolution
  6. 6. Sigma 24mm f/1.4 DG HSM | A review – Shading
  7. 7. Sigma 24mm f/1.4 DG HSM | A review – Curvilinear distortion
  8. 8. Sigma 24mm f/1.4 DG HSM | A review – Our verdict
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