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Member Since 25 Nov 2008
Offline Last Active May 05 2016 04:42 AM

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Sigma 15 fisheye, least parallax point anyone?

18 March 2016 - 10:05 PM

Does anyone have a good measurement for the least parallax point for the Sigma 15mm fisheye (Nikon mount)? From the lens mount surface preferably. (It's not a "no parallax point" because it varies with angle of incidence, or something like that.)

I am making up a 6" dome port and would like to put the center of curvature of the dome on the least parallax point.