Re: ATM An $18.00 Null Test

[StepHydro@aol.com]

In a message dated 99-07-28 16:16:31 EDT, elvey@hal.com writes:

>  These test that allow multiple elements would be even better if someone 
could > >think of a self aligning setup that could be used to do the initial 
placement of the
>  elements. This type of setup would make it most valued by me.

YOu bet,

I bought three of those lenses from Peter but put them in a box after trying 
to make a setup that could be easily and quickly fettled each time it was 
needed. I never got comfortable that the nulls I got were "true" for the 
desired conditions. I thought about buying some surplus railroad rail for a 
bench, but that turned complicated too.

I would dearly love to use this test as my prime fuguring test, but won't 
until I can be comfortable of the resullts. I am sure that better opticians 
than I (all opticians are better than I at this stuff :-) probably have none 
of this sort of problem.

Cheers/Carron
who can start an run a gas turbine better than most opticians :-)