Key Features: Sigma 24mm f2 DG DN Contemporary Lens
- Lens construction: 13 elements in 11 groups, with 1 FLD, 2 SLD and 2 aspherical lens elements
- Inner focus system
- Stepping motor
- Supports DMF and AF+MF
- Super Multi-Layer Coating
- Aperture ring
- Focus Mode switch
- Mount with dust and splash resistant structure
- 9-blade rounded diaphragm
- Petal-type lens hood (LH656-02)
- Magnetic metal lens cap (LCF62-01M)
- High-precision, durable brass bayonet mount
The lens uses two SLD glass elements and one FLD glass element to correct axial chromatic aberration, which is a particular concern with bright lenses. It also incorporates two high-precision glass-molded aspherical elements, this enabled the total number of lens elements to be kept down and the size and weight of the lens to be reduced, while providing excellent correction of various aberrations. Sagittal coma flare is also well suppressed, giving the lens a high degree of rendering power that makes it ideal for night sky photography.
High quality, compact and lightweight construction
All I series lenses have an all-metal construction. The precision-cut aluminium parts not only give the barrel a sleek, stylish finish, but provide superb durability. Metal materials are also used in internal structures that slide with the operation ring for added robustness.