aperture tab name and other things

[richardHaw]

Hello. i have a couple of questions...

1: what is the official name of that ring with the aperture tab?

2: does the aperture tab ring come off after you unscrew and remove the bayonet?

3: is the removal steps the same for most of not all Nikon cameras (modern, D200+)

4: what material is this usually made of?

thank you very much. i have a project that i cannot disclose at the moment but i will share it with you as soon as im done with a prototype. Thanks!

[Erik Lund]

Aperture follower.

Yes pops off when you undue the mount,,,

Recalibration in needed,,, in priciple,,,

Same design more or less for all and suspect to become stuck or slow returning, a common issue and Nikon professional service is avare of this and will fix it for free in my experience,,,

[Erik Lund]

For reference, the part that is on the lens/aperture ring, that turn this 'aperture follower' is called 'Meter coupling ridge'
Tells the camera what aperture is selected Ai, Ais, AF, AF-D, 'old' AFS etc,,, but not G and E type

[richardHaw]

Thanks! Aperture follow...what a name

hmmmm...the one on my D7000 is hollow underneath. and i think is made of plastic. other than that i dont remember seeing another one since i usually leave these on the front plate with the bayonet mount. but i hope that it's solid.

there seem to be some grooves under it, could this be where the calibration is supposed to be done?

thanks, nice to know.

[Erik Lund]

The grooves/cut outs in the camera mount are for the ring with three  blades or 'springs', the ones that holds the lens firmly onto the camera mount.