Can anyone identify this lens, and will it work on a Nikon D40X?

I've been chatting with friends about getting a new camera. One of them wants to give me this lens:
Micro-NIKKOR-P.C Auto 1:3.5 f=55mm 731408
It's from an old Nikon film camera.
Also, special message to Fhotoface; I'm still tyring to contact you so I can see some of your pics, but I can't seem to do this: 鈥渆nable Yahoo! Answers email communications鈥?, but I will keep trying.

DO NOT TRY AND MOUNT THIS LENS ON A D40x! It will possibly result in having to send your camera body back to Nikon and a repair charge for user abuse.

This lens cannot be used at all on a D40x and will damage the camera body if you try to mount it. It is pre-Ai and dates from 1973 based on the serial number.

The D40x can use Ai lenses without the capability of light-metering, however pre-Ai lenses are a total no-go in any fashion.

The only problem is, that this answer is totally incorrect. The D40 and D40x are the first digital bodies that will not be damaged if a pre-AI lens is used. Report It

The D40/D40x is the only digital body that can take non-AI lens, those made before 1977. That said, there are some lenses made in that period that are incompatible with some bodies, and it will pay to consult the lens compatibility chart in your manual for details.

I have provided a link that has more details on lens/body compatibility.

This particular lens does not appear as a problem lens for my F4.

The f3.5 55mm Micro was introduced in 1964 (ie was a non-AI lens) but could have been modified to the AI standard when that was introduced in 1977. It appears that Nikon had a program to retro-fit new mounts to their older lenses at the time they made this change. The second link has a better explanation of these issues that I can give quickly here.

This lens may work on your D40x but you will have to focus and expose manually. The D40 and D40x lack an internal lense focusing drive and can only work with DX series lenses. It's probably a good lens and certanly worth trying on you 40x if you don't mind manual operation.

That lense will NOT work fully with a D40 or D40x as it doesn't have the required autofocus motor built-in. It will not meter, as it lacks the electrical contacts of current lenses. You can use it in manual mode only.

The D40 and D40X are the first Nikon DSLR's to not have an autofocus motor in their bodies. They are compatible (autofocus-wise) only with AF-S and AF-I lenses.

The Micro-NIKKOR-P.C Auto 1:3.5 f=55mm is an extremely sharp lens. I have two, on very old one that has bellow comp built in (so I can use an external light meter for unusual lighting) and the other for use with the internal meter.

One of the lenses has a higher resolution than even Kodak's Kodachrome can resolve.

Skipper, I am on assignment and do not have access to my archived images that can show you the results from the 12-24mm Nikon lens.

I will be back to my office early Thursday. I will send you a few samples then

You can use this lens on the D40X, but ONLY when the camera is in the manual mode. You will have to set the shutter speed and lens aperture the old-fashioned way. This is by no means an impossible task 鈥?it was all we had for 50 years or more 鈥?but it is not very convenient. You will have to focus manually, but you can use the electronic rangefinder (focus confirmation beep) if you desire.

This is a moderate telephoto lens on the D40X. As long as it's free, what the heck. I wouldn't suggest buying it for the D40X, though.