From: "Frank Ward" 
To: 
Reply-To: "Frank Ward" 




 As everyone knows I avoid controversy as best I can.

All I can add to this discussion is observational data.

When David Lerch visited my shop last year, (or was it the year before) I
tested a 10" f/5 aluminized mirror with my equipment (fouchalt) I came
up with certain numbers. David set up Robo1 and the difference between his
numbers and mine were less than 5%.

We then did the same thing to two more mirrors, an eight inch and a six
inch. Every time the numbers I found were in agreement with the numbers
David found.

I have since used the 10" f/5 which rated a 1/20+ wave from my
numbers. At no time in side to side trials did a 13.5" f/5 commercial
mirror rated at 1/10 wave outperform the 10" in light grasp or
sharpness of view.

Better than this I can't do, Tom.
Oh, and when he was here he cleaned out my kitchen and silvered six mirrors
in a little less than two hours. The guy is a treasure. I enjoyed hating
him for a long time, then I realized it was just envy.

Best wishes,

Frank Ward
Atlanta, GA
(85 and comfortable today)

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