Lens try out – Kiron 28mm f2 (brand new old stock), Pentax K-3. Outdoor shots: f2.0, ISO 100; Speed 1/1000 s; Distance infinity; point-and-shoot manual. Indoor shots: f 2.0, ISO 3200; Speed between 1/90 to 1/20 s, manual.
https://www.pentaxforums.com/userreviews/kiron-28mm-f2-mc.html

































