7Artisans’ ultrawide AF pancake lens is so light you might forget you’re carrying it!
The budget lens manufacturer has released its highly anticipated 2.5oz (71g) AF 10mm f/4 APS-C pancake prime in China, but does autofocus only add dead weight to an ultrawide-angle lens like this?
7Artisans has unveiled its latest ultrawide AF pancake lens, the 10mm f/4 APS-C model, which is shockingly lightweight at just 2.5 ounces (71 grams). This makes it the lightest AF pancake lens on the market, even half an ounce heavier than the TTArtisan AF 24mm F3.8 Mini. The lens, unveiled on October 29, is set to be released for Sony E-mount and Fujifilm X-mount cameras for ¥699 ($100 / £75) on the Chinese e-commerce site JD.com.
The 7Artisans AF 10mm f/4 pancake boasts a compact 1.2-inch (33mm) body that houses nine optical elements in seven groups, including a low dispersion (ED) element, a high-refractive-index element, and two aspherical elements. Powered by a stepping motor-driven AF system, the lens has a minimum focusing distance of 0.6 feet (0.2 meters).
While the inherently vast depth of field provided by an ultrawide focal length like 10mm may make autofocus seem superfluous, the STM AF in the 7Artisans 10mm f/4 pancake is sure to be appreciated by those who prefer automated focusing. The lens joins a growing trend of wide-angle pancake lenses integrating autofocus in recent years, with other examples like the TTArtisan AF 27mm f/2.8 and Viltrox AF 28mm f/4.5.
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