マウント不明ZEIKA 7.5mm F1.4をPEANTAX Q10で使ってみました。PENTAX Qマウントに改造済です。
https://www.flickr.com/photos/124051362@N03/51992467870
https://www.flickr.com/photos/124051362@N03/51991973953
https://www.flickr.com/photos/124051362@N03/51991915036
https://www.flickr.com/photos/124051362@N03/51991973938