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What it is
2 attributes, in the retailer’s own words.
Dimensions
3.46 × 3.46 × 3.46 inches
Model
MK-3.5mm f2.8M43
Black Friday is Friday, November 27, 2026. Amazon’s Black Friday deals run November 19–30, through Cyber Monday, from 12:01 a.m. PT (3:01 a.m. ET) on November 19. , Amazon lists Meike 3.5mm f2.8 Ultra Wide Circular Fisheye Lens at $139.99, with no deal badge.
Cheaper in Camera lenses, and what changes
Things of the same kind for at least 10% less than $139.99, with the attributes the retailers describe differently. Their words, not our judgement: we compare listings, we do not test products.
Check the mount first: Canon’s EOS R8, for one, takes EF lenses only through Canon’s EF-EOS R adapter. On an APS-C body a lens frames tighter than its focal length says, about 1.5x on Nikon DX and Sony APS-C, so a 24 mm lens frames like 36 mm, and 1.6x on Canon.
On most zoom lenses the widest aperture changes as you zoom, Nikon says: a zoom marked f/3.5-5.6 narrows as it zooms in, while a constant-aperture zoom holds its f-number and is heavier.
