Nikon NAI Pre-AI 50mm f2 lens. 5th Variant. Condition - 4E [4584].

This is the fifth variant of this lens, made between 1974 and Jan 1979. Will fit on some Nikon DSLR cameras. Depending on the model of camera, the exposure and metering maybe affected. It should not be fitted to a camera that has a non-removable AI tab. For full details, see the Nikon chart: https://nikoneurope-en.custhelp.com/app/answers/detail/a_id/19026 and this website https://www.bythom.com/lensacronyms.htm/ Included:Front cap.