ATM Mirror/Foucault readings

[Bob Hazel <machead@qadas.com>]

Well, this is a suppliment to my first post.
I did a standard parabolizing stroke for about 5 minutes, cold pressed
for about 5 minutes, parabolizing stroke 5 minutes. Let the mirror cool
for an hour, took more readings, here they are.
Zone 1:.016
Zone 2:.022
Zone 3:.016
Zone 4:.010
Zone 5:.019 These are actual micromter readings, not an offset from
zero.  This seems to be getting closer to a sphere.

   Also, could someone please check my figures on what an 8"f/6.7 should
read as differences from zero?

I get, for a 5 zone mask, based on Barrys instruction:
Zone 1: .007"
Zone 2: .022"
Zone 3: .037"
Zone 4: .052"
Zone 5: .067"

 Thanks again,

bob-Denver,CO