Low Fi Photography with the Yashica 35MF and a Vivitar .55x Video wideangle adapter
A subtitle for this could be “How to create photographs with nausea inducing anastigmatic distortion”. This camera has 4 zone focus settings Closeup, Three quarters, Group and Infinity, I’m not actually sure just how effective focusing is with this setup but with the .55x adapter on and at about f8 there isn’t much that isn’t within focus. And really who would notice with all that distortion. As for the focal length the lens by itself is 38mm so multiplied by .55 yields 20.9mm but that sounds a bit too precise in this case so we’ll call that 21mm ish.