- Dedicated to Pentax AF SLR cameras
- Great focal range for nature and portrait photography
- Constant and fast maximum aperture of f2.8
- World's smallest zoom at just 3.9 inches
- Minimum focusing distance of 15.7 inches at all focal lengths
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Product Description
Amazon.com Product Description
Sigma's 28-70mm f2.8 EX aspherical lens measures in at only 3.9 inches and 21.2 ounces, making it the world's smallest zoom lens is its category. Its minimum focusing distance of just 15.7 inches, across all focal lengths, also gives it the world's shortest close-focusing capability. The 28-70mm f2.8 EX incorporates helical focusing which eliminates front lens barrel rotation during focusing, making it convenient to use polarizing filters, while its two aspherical elements help maintain a high optical performance throughout the zoom range. This model is dedicated to Pentax AF SLR cameras.
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