The Pentax HD DA 11-18mm f/2.8 ED DC WR is a high-performance ultra-wide-angle zoom lens designed for Pentax APS-C format DSLR cameras. It features a constant f/2.8 aperture, making it ideal for landscape, architecture, and astrophotography.

Key Features:

• Optical Construction: 16 elements in 11 groups, including extra-low dispersion (ED) and aspherical elements for superior image quality.
• Autofocus System: Features DC motor-driven autofocus, ensuring smooth and quiet focusing, with Quick-Shift Focus for manual fine-tuning.
• Weather Resistance: AW (All-Weather) sealing protects against dust and moisture, ensuring durability in challenging environments.
• Focus Clamp Mechanism: Allows locking focus at a specific point, useful for astro and landscape photography.
• 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 82mm filters, with a petal-shaped hood featuring a removable door for easy access to polarizing filters.

This lens is a premium ultra-wide zoom with fast aperture, weather sealing, and precision autofocus, making it a great choice for professional and enthusiast photographers.

Specifications for  the Pentax HD DA 11-18mm f/2.8 ED DC WR: