[ATM] Latest series 8 Updated pictures of 8"f6 mirror............

[John and Bernadine Murray]

G'day Jim,
	Uhmm, I've not considered doing that mainly because I was trying for
a sphere and thereby getting an all over null. However, We'll be doing one
more session this afternoon and when it stabilises overnight I'll try and
get some numbers. I can't guarantee my technique though at that close to
null all over. I'll post details in the morning.

Cheers

John




I think the old pros pushed their thumb-nails onto a cooled pitch sample for
1 minute with ca. 1 lb force.  If the dent came out about 1/4" they figured
they were good to go.

So you can REALLY see what works with pitch hardness, temperature, TOT/MOT,
stroke type & length, etc., etc. ad infinitum, try taking and posting some
Foucault measurements along with the pretty pictures which are SO open to
interpretation.

         -- Jim Burrows