Welcome on board, John.
Three * 16/3.5, that is pretty impressive. You qualify as hard-core by beating me in the number of 16 fishes (only have 2 myself ...).
Thanks Bjorn - Yes I have three 16/3.5's because I know I'll drop one out in the mountains sometime during a lens change and I've already have had to send one in for cleaning due to dust. Best fisheye I've tried and, as you know, there are no spare parts. Heck, I couldn't even get Nikon to clean it - had to send it in to APS who did a great job. I also managed to snag an extra lens hood because that will get dropped sometime too.
Currently looking for a 2nd 400/5.6 ED AI and a decent copy of a 300/4.5 ED AI.
Nice to be on a Nikon-centric site!
Welcome! I have worked a lot on the 16mm 3.5, it was especially Jakov and his sample that gave us a headache...
![Smiley :)](https://nikongear.net/revival/Smileys/default/smiley.gif)
It would from time to time give completely out of focus images and the CPU was troubled with gremlins also...
We got it working in the end but it took for ever to fix it - During the mission I took off the build in
Lens hood to straighten it back into shape, it's held in place from the front by a threaded retaining ring.
I also tightened the metal
Lens Cap and fitted new felt lining so he wouldn't loose it.
I hope you don't drop you fish! Would be a shame to loose it like that...
![Roll Eyes ::)](https://nikongear.net/revival/Smileys/default/rolleyes.gif)