This video shows you how to put older Pentax K-Mount lenses that have a manual aperture, and use the on new Pentax cameras.

タグ: pentax-(lens), pentax-(organization), camera, old, digital, lens-(optics), canon, k-mount, k-mount, old-lenses, k-30, k-5, k-5-ii, k-5-iis, pentax, camera-(film), photography-(visual-art-form), pentax-cameras, k-3, pentax-k-3, k-3-m2