Lens system
| Internal focus (IF) |
Y |
| Closest focusing distance |
0.28 m |
| Minimum focal length (35mm film equiv) |
25.5 mm |
| Maximum focal length (35mm film equiv) |
105 mm |
| Number of diaphragm blades |
7 |
| Diagonal angle of view (min) |
23 ° |
| Diagonal angle of view (max) |
79 ° |
| Minimum aperture number |
4 |
| Component for |
SLR |
| Focal length range (f-f) |
17 - 70 mm |
Weight & dimensions
| Diameter |
75 mm |
| Filter size |
67 mm |
Performance
| Auto focus |
Y |
| Manual focus |
Y |
smc DA 17-70mm f/4 AL (IF) SDM
Acquire wide angle, extra zoom and the highest level of optical quality with the smc PENTAX DA 17-70mm f/4 ED AL [IF] SDM wide angle zoom lens. The exclusive lens SDM autofocus motor ideally compliments current Pentax DSLRs with fast, accurate, quiet focus. Bringing together advanced optical technologies, including aspherical elements, special optical-glass elements, original Pentax SP (Super Protect) lens coatings, along with a Quick-shift Focus System, this new interchangeable lens is superior in terms of contrast, clarity and edge-to-edge sharpness.
Features
- Extra zoom for a wide range of shooting applications from wide angle to telephoto;
- Exclusive lens SDM autofocus motor ideally complements modern PENTAX DSLR bodies with SDM capabilities;
- PENTAX SP (Super Protect) coating protects the exposed lens elements;
- Quick-shift Focus System allows instant switching from auto to manual focus;
- Developed specifically for PENTAX digital SLRs;
- Focal length equivalent to 26-107mm in 35mm format.