I bought this lens in the spring of 2022 for about 12tyr. Pleasant design - metal, glass, plastic. The focus and aperture rings do not play. There are no chromatic aberrations. At all. Neither crop nor full frame. There is a jamb with a focus scale (infinity is not where it should be) - it is easily fixed by removing the rubber band and adjusting the scale. Although the fitting procedure can not be done - on the f / 4 hole, infinity comes from 1m. I do not think that someone will use it at closer distances. The corners do not fill up, but at the same time there is an unpleasant barrel-shaped distortion, which is noticeable ONLY when shooting architecture and occasionally when shooting interiors (you won’t even notice it in landscape photography, believe me). Corrected by PTLens, or a profile under ACR. I compared this lens with the original 14mm f / 2.8 boot. Yes, it does not have autofocus / dandelion / confirmation chip. Yes, he does not have a jump rope / diaphragm drive. But in terms of picture sharpness and lack of HA, this lens tears the original expensive L-ku to smithereens. Once I dropped it from a height of about 2m onto the asphalt - only one petal of the lens hood cracked, otherwise the lens remained intact and unharmed.
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