The Pentax-DA 15mm F4 LTD HD SLV Lens is a compact prime wide-angle lens providing a 35mm-equivalent focal length of 23mm. The lens' optical design includes features extra-low dispersion glass and one hybrid aspherical elements to minimize chromatic aberrations and limit distortion in order to enable a natural-looking expansive angle of view that is well-suited to both indoor and outdoor scenes. A high-grade multi-layer HD coating has been applied to lens elements to help minimize flare and ghosting for enhanced contrast, clarity, and color fidelity and a rounded seven-blade diaphragm contributes to an aesthetic out-of-focus quality to benefit shallow depth of field imagery. Additionally, an SP Protect coating has also been applied to the front lens element to effectively protect it from dirt, oil, and finger prints.
The compact form-factor of this lens integrates Pentax's Quick-Shift Focus System, which allows manual focus control over the lens at any time, even in AF mode, for precise handling over the focal plane.
Brand | Pentax |
---|---|
Focal Length | 15mm Comparable 35mm Focal Length: 23 mm |
Lens type | Prime lens |
Aperture Range | Maximum: f/4 Minimum: f/22 |
Max Format size | APS-C/DX |
Camera Mount | Pentax K |
Lens Format | Pentax Digital (APS-C) |
Lens mount | Pentax KAF |
Minimum Focusing Distance | 7.1“ (18.03 cm) |
Focus Type | Autofocus |
Minimum aperture | f/22.0 |
Diaphragm Blades | 7 |
Angle Of View | 86 |
Elements | 8 |
Groups | 6 |
Groups | 6 |
Diaphragm Blades | 7 |
Filter Size | Front:49 mm |
Autofocus | Yes |
Elements | 8 |
Motor Type | Screw Drive from camera |
Weight | 212 |
Dimensions (DxL) | Approx. 2.5 x 1.6“ (63.50 x 40.64 mm) |
Diameter | 63 mm |
Weight | 190 |
Length | 40 mm |
Filter Thread | 49 mm |
Lens Hood | Built-In |
Focal Length | 15mm Comparable 35mm Focal Length: 23 mm |
Dimensions(DxL) | 63.50 x 40.64 mm |
Weight | 190 g |
Filter Thread Size | Front: 49 mm |
Autofocus | Yes |
Aperture | Maximum: f/4 Minimum: f/22 |
Camera Mount Type | Pentax K |
Format Compatibility | Pentax Digital (APS-C) |
Angle of View | 86 |
Minimum Focus Distance | 18.03 cm |
Magnification | 0.15x |
Maximum Reproduction Ratio | 1:6.67 |
Optical Design | 8 Elements in 6 Groups |
Diaphragm Blades | 7 |