There are multiple versions. I have the older EE style made by Konica the later version was made by Tokina (as I recall). The Tokina version is a bit smaller, very hard to find and supposed to be a bit sharper. I really like the Hexanon 24. Aside from the notchy aperture ring that every Konica lens has, it just feels great and is a real pleasure to use.Thanks, I've been wondering about this lens. Great shot.