TTArtisan has announced the APS-C AF 14mm F3.5: a wide-angle pancake prime for Sony E-mount APS-C cameras, giving a 92-degree angle of view. Exact dimensions have yet to be revealed, but it certainly looks shallow enough to qualify as a bona-fide pancake lens, and at just 98g it's super-light. Despite the small size and low weight, the lens still packs autofocus, as well as a dedicated aperture control ring.
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Inside is an 8-element optical stack arranged in 7 groups, and the 7-blade diaphragm has an aperture range of f/3.5-f/16. The lens takes tiny 39mm filters and can focus down to 0.25m. We await further information regarding pricing and availability.