Time to be with your loved ones

Time to be with loved ones

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Is lens focal length specified considering the effect of barrel distortion on field of view?

Given a NIKON 14mm f/2.8D ED AF Ultra Wide-Angle Nikkor Lens on a full-frame sensor, in theory the field of view is HFOV: 104° x VFOV: 81°. However this lens exhibits noticeable barrel distortion ...