The Pentax smc P-DA 14mm F2.8 ED (IF) is designed to be used with fully automated cameras. It incorporates a high-refraction extra low dispersion (ED) glass element to produce a high-resolution, high-contrast image with true-to-life color rendition, and features an internal focus system to make focusing smoother and faster. Like all PENTAX lenses, this lens is treated with the acclaimed smc coating for maximum light transmission, sharp definition, and high contrast images. 
- DA series is specifically designed for digital cameras 
- (ED) glass element to produce high-resolution, higher-contrast images 
- Internal Focus system makes focusing smoother and faster

Specifications:

• Mount: Bayonet
• Lens Construction: 11 groups 12 elements
• Angle of View: 90°
• Diaphragm: Fully Automatic
• Blades: 6
• Min Aperture: 22
• Min Focus Distance: 0.56'
• Max Magnification: 0.19X
• Filter Diameter: 77mm
• Size Max Diameter Length: 3.3 x 2.7"
• Weight: 14.8 oz.
• Filter Size: 77mm