The product in the image is the Sigma 105mm f/1.4 DG HSM Art Lens, a highly regarded lens in Sigma's Art series known for its exceptional portrait photography capabilities.
Specifications
- Here is a description of its key features:
- Focal Length and Aperture: It is a 105mm prime lens with a very bright and fast maximum aperture of f/1.4, which makes it ideal for low-light performance and achieving a shallow depth of field with a strong bokeh effect.
- Optical Construction: The lens features 17 elements arranged in 12 groups, including FLD (F Low Dispersion), SLD (Special Low Dispersion), and aspherical glass elements to minimize distortion and aberrations.
- Build Quality: It boasts a durable, professional-grade construction that is both dust- and splash-proof, with special sealing at connection points.
- Autofocus: The lens incorporates a Hyper Sonic Motor (HSM) for high-speed, accurate, and quiet autofocus performance.
- Size and Handling: It is a large and heavy lens, often referred to as a "beast" due to the significant amount of glass required for its wide aperture and focal length. It has a large 105mm front filter diameter.
- Intended Use: While versatile, it is best known as an exceptional portrait lens, offering a unique quality that differentiates it from 85mm or 135mm options. It is also suitable for product photography and astrophotography.
- Accessories: The lens includes a removable tripod collar with an Arca-Swiss compatible foot.
