Ever thought that it would be great if your Nikon D40/D90 could meter with an old AI lens?
So far this was only possible using a D200/300 or better. But with the programmable Russian Dandelion chip every Nikon DSLR body will be able to meter with these old lenses.
This is what you’ll need:
These are the instructions for the 2/28 AI-S. While most Nikkors are almost identical, others might differ slightly. I advise you to take a picture before every step you take, this might be a big help when you put things back together…