Question re Nikkor 16mm F/2.8D AF Fisheye
I am not familiar with fisheye lenses. I am considering using this for spherical panoramas, but will this also serve as a 16mm lens for other landscape work? Or is a 16mm fisheye different from a normal 16mm lens?
#1. "RE: Question re Nikkor 16mm F/2.8D AF Fisheye" | In response to Reply # 0blw Nikonian since 18th Jun 2004Sun 25-Nov-12 08:01 AM
A fisheye is very different from a rectilinear ("normal") 16mm lens. The fisheye explicitly and deliberately does not correct distortion, so lines that do not run through the center of the frame are rendered in very curved fashion. As the name implies, rectilinear lenses render straight lines pretty much straight, although by the time we get out to 16mm or wider there is usually a little barrel distortion that has to be cleaned up in post processing.
These are both 15mm - I have the Sigma 15/f2.8 rectangular fisheye (which is essentially indistinguishable from the Nikkor 16/f2.8, which I've also owned) and the Sigma 12-24/f4.5-5.6 HSM Mk I.
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