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RE: Re: [ATM] overshot sagitta correction stroke

Roger that! It is nice to have more than one size.

Jerry



-----Original Message-----  Snipped
From:  Bob May
 
The thing that is nice about smaller spherometers is that you can measure
parts of the surface and find out if the curvature is equal over the whole
mirror surface.  You run into the problem tho of the spherometer size, which
determines the accuracy, and how accurately you can measure the surface
curvature.



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