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Re: [ATM] The Norman Test

On Sat, 25 Aug 2007, Bob May wrote:

> What I am seeing is that the surface resulting is only that with
> a hyperbolic figure of the index of refraction of the glass at
> the color tested at.  Useful designs of a R-C scope need to have
> an e value of around [4 or so for a usable scope and this test is
> limited to about -1.8 or so, which is a long way away from what
> is needed. IIRC, a classical scope is the one with e values of
> what the test produces.
> Bob May

Got your last message as well, and thanks.

I got a design for an RC that looks to work. The amplification
is 4.8 and the primary is F/4.8. I obtained a secondary
ecentricity of 1.595968 transforming the conic equation for
RC secondary to ecentricity (k = -e²).

Dominic

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