• 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
Forums > Back > next PZ lens test report: Sigma AF 150mm f/2.8 EX HSM DG APO macro OS (EOS)
Guest
Unregistered
 
#55
08-10-2011, 06:20 AM
Hmmm.. I haven't done the math, but during my study at polytechnical colleague we had a shop that could print us layer masks for an 35µm SU-8 process. The colleague did me a favor 4 years ago by ordering 180lpi custom encoder masks for me at that shop which I needed for certain optical position sensors.



What would be the resolution you need, either given in lines perinch oder millimeter line distance?



Christian
  Reply


Messages In This Thread
next PZ lens test report: Sigma AF 150mm f/2.8 EX HSM DG APO macro OS (EOS) - by Guest - 08-10-2011, 06:20 AM

Forum Jump:


Users browsing this thread: 21 Guest(s)