The focal length is equivalent to 300mm in the 35mm format. The SDM focus system incorporated in this lens results in a smoother, quieter autofocus operation using a built-in supersonic motor. The tightly sealed, weather-resistant and dust-resistant construction enhances durability for use in both rainy and dusty conditions, making the DA Star 200mm F2.8 ED (IF) SDM lens a perfect companion for the weather-resistant PENTAX DSLR bodies. The smc PENTAX DA Star 200mm F2.8 ED (IF) SDM is a fast, high-performance telephoto lens. <<<<<<<<<<<ĭeveloped specifically for PENTAX digital SLR cameras. The focal length is equivalent to 76.5mm to 207mm in the 35mm format. The three Extra-low Dispersion (ED) elements compensate for chromatic aberration. The SDM focus system incorporated in this lens results in a smoother, quieter autofocusing operation using a built-in supersonic motor. The PENTAX-original SP (Super Protect) coating repels dust, water and grease to keep your lens clean and your image quality at its peak.
Canon 7d review dpreview manual#
The PENTAX-original Quick-Shift Focus System allows instant switching from autofocus to manual focus operation. 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. With extra low dispersion glass and original lens coatings, this lens is superior in contrast, clarity and edge-to-edge sharpness. The smc PENTAX DA Star 50-135mm F2.8 ED (IF) SDM is a high-performance, telephoto zoom lens. It was pointed out to me Canon Crop dslrs do not alter their focal length metadata, yet Pentax does this alteration in camera and in sales literature. If sensors were crazy cheap from day one then crop format would have never existed. But my Pentax metadata tells me otherwise. Why do they say a 50-135mm 2.8 SDM is the modern replacement for the old FA 80-200mm 2.8 ?Īs I said I do not buy into the crop format means greater reach. If not then why does pentax alter the focal length metadata. Thats what I believe Pentax wants its owners to believe.
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