AI conversion aperture ring problem with 50/1,4 S

which must be a couple of years ago now

It was indeed!

 

Oddly, I fixed all of my machines then, but one of them has reverted..... Not long after the end of support for Win 7!

Roland, I bought the kit from Kamerastore.com in Finnland. Old new stock, but they had only one. I'm still looking for kits for the 200/4 and 135/3,5.

 

Hi Roland (et al.),

I only post here every 10 years or so, so hello to you all. i just wanted to tell you people that a seller on the US eBay site -- "dscamera" -- is currently selling a bunch of new, original AI conversion kits. These include a #7 ring as well as AI aperture rings for some 200/4, 135/3.5 and other old Nikkors.

Marc

 

ai modification nikkor | eBay

Thanks a lot Millard and everybody. Will have a look. For those still following, I tried the acetone thing and unscrewing that retaining ring, but it won't bulge, So rather than damaging something, I'm going to send the lot to my usual workshop.

Thanks a lot Millard and everybody. Will have a look. For those still following, I tried the acetone thing and unscrewing that retaining ring, but it won't bulge, So rather than damaging something, I'm going to send the lot to my usual workshop.

If acetone won't shift it, then heat might. Try holding a fairly high-wattage soldering iron in contact with the stubborn ring. Moving the point of contact slowly around it.

 

This technique will even shift epoxy cement, but you shouldn't need that kind of temperature for a threadlock adhesive.