bhamadicharef

Hi all Any hints on this DC Iris control circuit. I have found a old Kenko optics and it also has this 4 pins connector. I would be interesting to learn more about how to drive it ... When I recently asked from kenko-tokina I typically get a link to http://www.tokina.co.jp/en/security/TVR2713DCIR%20Spec.pdf but no real example of eletronic circuit. Dr Brahim HAMADICHAREF Singapore