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

[John and Bernadine Murray]

Morning All,
	After doing 2 14 minute sessions tot 1/3 stroke, switching to mot
for 1 session and then back to a final tot session I have taken some pics
after letting the mirror stabilise overnight. Each session was around 14
minutes in length. Air temp around 23 celcius. Stroke times back and for
were around 3 seconds. Very thin cerium....Almost clear....Gugolz 64 sat in
the tin for three years before using now. Perhaps some volatiles evaporated
and it's gone slightly harder? The picture is improving slightly now with a
bit of thickening in the lines still needing to be taken care of. Another
few laps with 1/3rd coc should fix it we think. I'll look into whats
required for a pitch hardness tester.


200mm diameter
1240 focal length
Moving source

Picures are at
http://users.cyberone.com.au/onslow/

Cheers

John Murray
Whyalla
South Australia.