Thread: Secret of the Hartman mask
View Single Post
  #5  
Old 31-12-2004, 01:02 PM
[1ponders]'s Avatar
[1ponders] (Paul)
Retired, damn no pension

[1ponders] is offline 		 
Join Date: Nov 2004
Location: Obi Obi, Qld
Posts: 18,778
Heres an image for those who don't know what a hartman mask is.

I like to tape up the holes so they are triangular. This gives me diffraction spikes to line up. I find it helps heaps when trying to decide "Is it in focus? Or is it just out?"


Paul
Attached Thumbnails
Click for full-size image (hartman mask.jpg)
12.2 KB362 views
Reply With Quote