Apologies in advance. I know this isn't the Classified forum, but I have a low-value item that may be of special interest to a certain class of Nikon users. If the forum admins determine that this post is inappropriate, I won't argue when it's deleted. I have a modified light baffle that will fit certain Nikon 50mm f/1.8 manual-focus lenses. It has been modified by having a Dandelion CPU chip glued onto it. This makes it super easy to add a CPU to certain models of Nikon 50mm f/1.8 MF lens. I know for a fact that this light baffle fits the following lenses: Nikkor 50mm f/1.8 Ai-s (1st gen, long-nose version) Nikon 50mm f/1.8 Series E (both versions) In addition, I am fairly certain it will fit the 2nd-gen Nikkor 50mm f/1.8 Ai-s (the first pancake version with serial numbers starting with "2") and the 3rd-gen Nikkor 50mm f/1.8 Ai-s (the pancake version with serial numbers starting with "4"). It may fit the Ai version, but I am less certain of that. If you're interested, please reply or PM. My asking price is similar to that of a new Dandelion chip, but you'll receive it MUCH faster than if you ordered one from Europe or China.