SMC 50-135mm f/2.8 ED (IF) SDM DA* series zoom lens has a total of 18 lens elements arranged in 14 groups including 3 ED (Extra-Low Dispersion) elements and comes with Pentaxs Super Protect (SP) coating. The lens construction features a water resistant, dust resistant body which compliments Pentaxs weather sealed DSLRs. The lens has a 35mm focal length equivalent of 76.5-207mm and has a 9-blade diaphragm.
For standard to medium long-range applications with the utmost level of sharpness, contrast and overall picture clarity, look no further. This fast lens, designed exclusively for PENTAX digital SLR cameras, is an outstanding combination of quality optical performance and speed.
The smc PENTAX DA Star 50-135mm F2.8 ED (IF) SDM is a high-performance, telephoto zoom lens.
The tightly sealed, weather-resistant and dust-resistant construction enhances durability for use in both rainy and dusty conditions, making the DA Star 50-135mm F2.8 ED (IF) SDM lens a perfect companion for the weather-resistant PENTAX DSLR bodies.
The PENTAX-original SP (Super Protect) coating repels dust, water and grease to keep your lens clean and your image quality at its peak.
The three Extra-low Dispersion (ED) elements compensate for chromatic aberration.
With extra low dispersion glass and original lens coatings, this lens is superior in contrast, clarity and edge-to-edge sharpness.
The PENTAX-original Quick-Shift Focus System allows instant switching from autofocus to manual focus operation.
The SDM focus system incorporated in this lens results in a smoother, quieter autofocusing operation using a built-in supersonic motor.
The focal length is equivalent to 76.5mm - 207mm in the 35mm format. Developed specifically for PENTAX digital SLR cameras.