The Pentax HD DA 10-17mm f/3.5-4.5 ED is a unique fisheye zoom lens designed for Pentax APS-C format DSLR cameras. Unlike conventional wide-angle lenses, this fisheye zoom provides dramatic distortion and an ultra-wide field of view, making it ideal for creative photography, architecture, and astrophotography.
Key Features:
- Optical Construction: 10 elements in 8 groups, including extra-low dispersion (ED) glass to minimize chromatic aberrations.
- Fisheye Effect: At 10mm, it offers a 180-degree diagonal field of view, while at 17mm, the effect is less pronounced with a 100-degree field of view.
- Autofocus System: Screw-drive autofocus with Quick-Shift Focus, allowing instant manual override.
- HD Coating: Enhances contrast and reduces flare for improved image quality.
- Super Protect (SP) Coating: Repels water, dust, and grease for easier maintenance.
- Built-in Lens Hood: Integrated petal-shaped hood with a removable section for easy access to filters.
- Compact & Lightweight: Designed for portability, making it a great choice for travel and outdoor photography.
This lens is a rare fisheye zoom, offering versatile composition control while maintaining Pentax’s signature optical quality.
Specifications for the Pentax HD DA 10-17mm f/3.5-4.5 ED:
| Specification | Details |
|---|---|
| Focal Length | 10-17mm |
| Maximum Aperture | f/3.5-4.5 |
| Minimum Aperture | f/22-32 |
| Lens Mount | Pentax K-mount |
| Format Compatibility | APS-C |
| Optical Construction | 10 elements in 8 groups |
| Special Elements | Extra-low dispersion (ED) |
| Autofocus System | Screw-drive autofocus, Quick-Shift Focus |
| Focus Type | Autofocus with manual override |
| Minimum Focus Distance | 14 cm / 5.5 in |
| Maximum Magnification | 0.39x |
| Diaphragm Blades | 6 |
| Image Stabilization | None (relies on camera body stabilization) |
| Filter Thread | No filter thread |
| Weather Resistance | No |
| Coating | HD Coating, Super Protect (SP) Coating |
| Field of View | 180° (Diagonal at 10mm), 100° (Diagonal at 17mm) |
| Built-in Hood | Yes (with removable section for filter access) |
| Dimensions | Approx. 68mm (Diameter) x 70mm (Length) |
| Weight | Approx. 317g / 11.2oz |