Comparison of Sigma's 18-35mm f/1.8 DC HSM Zoom Lens and Canon's EF 16-35mm f/2.8L II; Features and Performance Evaluated
In the world of photography, two lenses stand out for their unique features and performance - the Sigma 18-35mm f/1.8 DC HSM and the Canon EF 16-35mm f/2.8L II. These lenses, designed for different camera sensor sizes, offer distinct advantages and drawbacks that make them suitable for specific photographic needs.
Sensor Compatibility and Intended Use
The Sigma 18-35mm f/1.8 is exclusively designed for APS-C sensors, providing a 35mm equivalent focal length of approximately 28.8-56mm. On the other hand, the Canon EF 16-35mm f/2.8L II is a full-frame ultra-wide to wide-angle zoom lens, suitable for Canon's full-frame DSLRs.
Aperture and Brightness
The Sigma lens boasts an exceptionally wide maximum aperture of f/1.8, allowing better low-light performance and shallower depth of field effects. In contrast, the Canon lens has a maximum aperture of f/2.8, still bright for wide-angle zooms but less so than Sigma's f/1.8.
Image Quality and Sharpness
The Sigma 18-35mm f/1.8 produces sharp and clean images, especially around 24mm and longer focal lengths and apertures between f/4 and f/8. However, it shows softness and chromatic aberration issues near edges at wider focal lengths and apertures, particularly on high-resolution sensors.
The Canon EF 16-35mm f/2.8L II, meanwhile, is known for excellent sharpness and contrast throughout the frame, thanks to its ultra-low dispersion and fluorite elements. This results in better edge-to-edge sharpness and less chromatic aberration than many lenses in its class.
Build and Handling
The Sigma lens is well built with Thermally Stable Composite (TSC) material, offering light weight and resistance to temperature changes. It includes internal focusing and a non-rotating front ring for filters. It features a Hyper Sonic Motor (HSM) for fast and quiet autofocus.
Canon's EF 16-35mm f/2.8L II, on the other hand, has professional-grade all-metal barrels and precise focusing mechanisms, reflecting Canon's high build standards typical of L-series lenses.
Conclusion
For APS-C users seeking a fast-aperture zoom with excellent versatility and a very bright f/1.8 aperture, the Sigma 18-35mm is a standout choice. However, edge softness and chromatic aberration at wide settings might require correction.
For full-frame shooters needing ultra-wide coverage with consistent sharpness and better control of optical aberrations, the Canon EF 16-35mm f/2.8L II offers superior image quality and build, though with a slower aperture.
Overall, the Sigma excels in aperture speed and brightness for APS-C cameras, while the Canon delivers superior edge-to-edge sharpness and optical performance on full-frame cameras. The choice depends primarily on sensor format and specific photographic needs.
The Sigma 18-35mm f/1.8mm DC HSM lens is around £650, while the Canon 16-35mm lens performs similarly to when used at the 16mm setting, with less difference between center and edge resolution at each given aperture. The Canon lens, however, is almost twice the price of the Sigma lens at around £1,200.
Both lenses have their merits, and the choice between them will depend on the needs and budget of the photographer.
- For APS-C users seeking a fast-aperture zoom with exceptional brightness and versatility, the Sigma 18-35mm f/1.8 DC HSM might be an ideal gadget given its unique features.
- If you're a full-frame shooter in search of ultra-wide coverage and superior optical performance, technology like the Canon EF 16-35mm f/2.8L II could be a wise investment, despite its comparatively slower aperture.
