Optical Performance
- High Optical Performance: Designed for high-resolution rendering and clarity.
- Bright f/1.4 Aperture: Ideal for low-light conditions and depth of field control.
- FLD and SLD Glass Elements: Three FLD and two SLD elements reduce color fringing and chromatic aberrations.
- Aspherical Element: Limits distortion and spherical aberrations for sharpness.
- Large 105mm Diameter Front: Enhances peripheral illumination to reduce vignetting.
- Super Multi-Layer Coating: Minimizes lens flare and ghosting for better contrast and color fidelity.
- Rounded Nine-Blade Diaphragm: Contributes to smooth and pleasing bokeh quality.
Autofocus System
- Hyper Sonic Motor (HSM): Provides quick, smooth, and quiet autofocus performance.
- Full-Time Manual Focus Override: Allows manual focus control at any time.
- Optimized AF Algorithm: Ensures smoother focusing performance.
- Electromagnetic Aperture Mechanism: Offers greater exposure control stability, especially useful in fast continuous shooting.
Design and Build
- Art Line Lens: Part of Sigma’s Global Vision series, designed for creative and artistic applications.
- Thermally Stable Composite (TSC) Material: Ensures durability in various environments.
- Brass Bayonet Mount: Offers accuracy, durability, and incorporates rubber sealing for dust and splash resistance.
- Protective Coating on Front Element: Water and oil-repellent coating for easier cleaning.
- Carbon Fiber Reinforced Plastic Lens Hood: Lightweight yet durable construction.
Additional Features
- Compatibility: Designed for full-frame Canon EF-mount DSLRs, can also be used with APS-C models providing a 168mm equivalent focal length.
- Removable Rotating Tripod Collar: Features an Arca-type compatible foot for wide mounting compatibility and can be removed for comfortable handheld use.
- Sigma USB Dock Compatibility: Allows fine-tuning of lens characteristics and firmware updates.
