Quote Originally Posted by Denverdad View Post
Maris, do you have the decimal off by one place for that separation distance? I get 119 cm for that value.

Jason, assuming that is correct, the lenses in question are going to produce something of a soda-straw effect when combined, i.e., not a very large image circle on the wall.
Yep, confusion of millimetres and centimetres. I looked at a +3D and a -3D combination and note at a separation of about 3.3cm the net focal length is about 11 feet; a much more compact assembly.