Lights

EFL of 19.6mm (135 equiv.) Probably a bit wider if a Raw converter that has no mandatory 'auto correction' for lenses, such as Raw Therapee or Aftershot Pro (and/or a DCRAW based converter)...or uses more of the sensor's data. Since comparing Raw+jpgs from the same photo, the Raw files come out noticeably wider with some converters...as did this one if correction isn't used or needed, or the converter uses more of the available data. This setup with the 14mm and WCON .07 requires a couple of spacers (clear filters) to get the WA in the correct position so that the corners aren't way too soft...(but vignettes a little in 4:3 but not much if at all in 3:2) and a step ring 46-55mm. (32 Ford Highboy)