Attribute | Sigma 24mm f/3.5 DG DN Contemporary × | Pentax 15mm ƒ/4 ED AL Limited SMC DA × |
---|---|---|
Filter Size (mm) | 55 | 49 |
Notes | Available AF Mounts: L-Mount, Sony E-Mount | Hood is built-in, pullout type |
Closest Focus (m) | 0.11 | 0.18 |
Magnification Ratio (x) | 0.5 | 0.15 |
Type | Wide Prime | Wide Prime |
Focus Details | Smooth, quiet and high-speed AF via stepping motor | Internal, with "Quick-Shift" focus system |
APS Equivalent | 1.5x: 36mm | 23mm |
Diameter (mm) | 64 | 63 |
Image Circle | 35mm | APS-C |
Focal Length (mm) | 24.00 | 15.00 |
Brand | Sigma | Pentax |
Name | Sigma 24mm f/3.5 DG DN Contemporary | Pentax 15mm ƒ/4 ED AL Limited SMC DA |
Weight (g) | 225 | 212 |
Aperture (f) | 3.50 - 22.00 | 4.00 - 22.00 |
Diaphragm Blades | 7 | 7 |
Diagonal Angle of View (degree) | 84.10 | 86.00 |
Length (mm) | 48.8 | 39.5 |
Diaphragm Blades Type | rounded | - |
Lens Construction | 10 elements in 8 groups, with 1 SLD glass and 3 aspherical lenses | 8 elements in 6 groups |