On 1/25/2012, David Ruether posted:
There's a local (Silicon Valley) tech program I watch called Tech Now.
They take a lot of clips with what is obviously an afocal wide-angle
adapter. If it were a couple of dozen years ago, I'd even guess
Spiratone :-)
Main clues: easily visible barrel distortion, vignetting, and chromatic
aberration.
--
Gene E. Bloch (Stumbling Bloch)