I would like to add an iris to a standard 5 element lens.
My intuition says that adding this close to the front or backside will not only reduce light but also the image size.
Is this correct?
Does someone has a link explaining the effects or the right way to do this?
Rgds,
Frank
If you want to buy a module you can check the 'CP-1064. Sinewave Interpolator' on www.opticalencoder.com.
As a more robust design alternative you could check the 'MT-series' on www.optical-technology.com
For the same reason you can check the interpolator products from Heidenhain.
Rgds,
Frank