$105 · Canon FD 28mm 2.8 manual focus lens.

Suitable for Canon slrs with FD mount or adaptable to other digital cameras. This is a "Newer" version. Likely from the early 80s. "Optical build quality is exceptional, and one half of the reason this lens is noteworthy (the other half being its price relative to this optical quality). Using seven elements in seven groups (that's right, every element is floating alone), Canon created one of the most optically pure wide-angle lenses you'll find. Distortion is virtually nonexistent due in large part to the arrangement of these elements. Spherical aberration is almost entirely corrected, resulting in images that are highly-detailed and perfectly resolved." https://casualphotophile.com/2015/04/27/noteworthy-lenses-canon-fd-28mm-%c6%922-8/