Is this lens Ai or non-ai?

[dwaoka]

Hi

Will somebody help me determine is this lense is modified or not?

I have a lovely FM2 to use it with, if lens is not modified is it safe to mount it to FM2?

Thanks very much guys.
Peter.

 

[gerikson]

It looks to me as if it's missing the ridge right inside the coupling prong. So I'd guess it's not AI'd.

Here's an example of a home-AI'd lens: http://www.kenrockwell.com/nikon/images1/200mm-q/200-q-aid-KEN_4028.jpg

 

[hans voralberg]

Non AI. I think the FM2 has the fold up coupling nod so IIRC it's safe.

 

[not_in_good_order]

Non AI. I think the FM2 has the fold up coupling nod so IIRC it's safe.

The FM2 does not accept non AI lenses. The F3 has the flip up feature that you are referring to to allow for use of non AI lenses with stop down metering.

 

[not_in_good_order]

Here is a very useful link about Nikon lens compatibility:

http://www.nikonians.org/nikon/slr-lens.html

 

[sevo]

Non AI. I think the FM2 has the fold up coupling nod so IIRC it's safe.

Not unless the camera is modified - the FM2/FM2n had a rigid coupler. But there were some that had a FE coupler transplanted - it was a official modification offered by Nikon service.

 

[dwaoka]

Right,

So where can I modify lens in europe (uk)? Anyone knows good place to start with?

Thanks for all replies.

 

[dwaoka]

So, I received a lens, I tried to mount it, but I did't release the shutter as I know back part of the lens wil hit mirror.

So the question now is - if I remove top part of the lens back, will it be enough to use lens on FM2, I don't mind using handheld light meter.

 

[nobbylon]

looks like a pre 1967 50 f2, whats the serial number. Maybe kit 3 ai ring will do the trick if you can get one. be carefull mounting on camera as back of ring is prob' hitting body ai tab

 

[dwaoka]

553298

I'm new to Nikon, but this lens doesn't have ridge but still is not even touching camera tab.

 

[nobbylon]

can you take a pic of the lens monted on the fm2?

 

[nobbylon]

this is what a modified one looks like, note the cutouts in the aperture ring,

 

[dwaoka]

My 11months old baby is just napping so I dont want to make noise taking the camera out, but I can tell you that I need to set f16 on the lens and then mount it, rabbit ears are going through tab slighty rubbing on it, and then I can only open it to f2.8 without touching the tab again...

So I'm thinking now, that I just get rid of the ears to mount it easier.

 

[sevo]

The ears are not the problem - the rim of the aperture ring sits on the AI aperture coupler tab, and will bend and eventually destroy it!

 

[nobbylon]

the problem is that you run the risk of breaking or damaging the tab on the body. Also the meter is not going to work because the lens aperture position is not linked up to the camera. You can modify the ring yourself by filing the aperture ring down at the correct place.

 

[nobbylon]

here's a link with very usefull info

http://www.photosynthesis.co.nz/nikon/aimod.html

 

[dwaoka]

Thanks very much, I have seen it before, and according to it, my lens cannot be modified to AI but, I'm asking how to modify it to safely mount it on camera.

Like I've said before, I don't mind if meter doesn't work, I only want camera to stop down aperture during shutter release.

Thanks.