Nippon Kogaku Japan Nikon 135mm f/3.5 f3.5 Nikkor-Q non-AI manual focus lens

well hey there folks how is everybody doing today i hope you're enjoying your lockdown as much as i am mine so um i want to say a few quick words today about the nikkor ai series also the ais series same optical formula 135 f 3.5 in the world of 135 millimeter prime lenses from the manual focus era the nikkor ai and ais series tend to be a little pricey uh i suspect that has something to do with well and then first of all they're nikor's night course a little more pricey in general um and back a few years ago um the angry photographer ken can wheeler ken wheeler made a a series of videos or a number of videos where he um he really extolled the virtues of this lens and its stablemate the 135.28 which is right here here's a 135.28 this is an ais this is an ai optically makes no difference that is the ai ais versions of these lenses are identical optically there's no reason to prefer one o