Certainly! The Pentax SMC DA 16-50mm f/2.8 ED AL [IF] SDM is a high-performance standard zoom lens designed for Pentax APS-C format DSLR cameras. It offers a constant f/2.8 aperture, making it ideal for low-light photography and professional applications.
Key Features:
- Optical Construction: 15 elements in 12 groups, including extra-low dispersion (ED) and aspherical elements for superior image quality.
- Autofocus System: Features Supersonic Drive Motor (SDM) for smooth and silent autofocus, with Quick-Shift Focus for manual fine-tuning.
- Weather Resistance: AW (All-Weather) sealing protects against dust and moisture, ensuring durability in challenging environments.
- Internal Focusing (IF): The lens maintains its length while focusing, improving handling and balance.
- Super Multi-Coating (SMC) & Super Protect (SP) Coating: Reduces flare and ghosting while repelling water, dust, and grease.
- Rounded 9-Blade Diaphragm: Produces smooth and natural bokeh for artistic depth-of-field effects.
- Filter Compatibility: Accepts 77mm filters, with a petal-shaped hood for glare reduction.
This lens is a premium choice for photographers seeking sharpness, versatility, and durability in a fast-aperture zoom lens.
Specifications for the Pentax SMC DA 16-50mm f/2.8 ED AL [IF] SDM:
| Specification | Details |
|---|---|
| Focal Length | 16-50mm |
| Maximum Aperture | f/2.8 (constant) |
| Minimum Aperture | f/22 |
| Lens Mount | Pentax K-mount |
| Format Compatibility | APS-C |
| Optical Construction | 15 elements in 12 groups |
| Special Elements | Extra-low dispersion (ED), Aspherical elements |
| Autofocus System | Supersonic Drive Motor (SDM), Quick-Shift Focus |
| Focus Type | Autofocus with manual override |
| Internal Focusing (IF) | Yes |
| Minimum Focus Distance | 30 cm / 11.8 in |
| Maximum Magnification | 0.21x |
| Diaphragm Blades | 9, rounded |
| Image Stabilization | None (relies on camera body stabilization) |
| Filter Thread | 77mm |
| Weather Resistance | Yes (AW - All-Weather sealing) |
| Coating | Super Multi-Coating (SMC), Super Protect (SP) |
| Dimensions | Approx. 84mm (Diameter) x 98.5mm (Length) |
| Weight | Approx. 565g / 19.9oz |