From: 
To: "Jerry B. Hillman" ,
Reply-To: 


Hi Jerry,
Grab "FLEX" and bend it into a parabola. Pete
>
> From: "Jerry B. Hillman" 
> Date: 2003/07/07 Mon PM 03:48:22 PDT
> To: 
> Subject: ATM 10" mirror Ronchi pics - resend
>
>
> I sent this two days ago but it never showed up on the list, or nobody
> bothered to respond. But I didn't get it back, so I assume it never went
> out.
>
> Hi all,
> I just made a startling discovery about my 10" mirror.
>
> http://www.convertabarn.com/10_inch_mirror.htm
>
> If I am reading these Ronchigrams right, this mirror is spherical with bad
> TDE considering 1/8" of the edge is already masked off. Maybe not quite
> spherical, but very close.
>
> Even in this condition, it outperforms every Meade mirror it has been
> compared against.  That doesn't make this mirror good, it just shows how bad
> Meade SCT's really are.
>
> Now a question???  Can this mirror be flexed to a parabola, or do I need to
> strip it (again) and refigure it? If possible, I would rather flex it now,
> and refigure it when the time comes to recoat it.
>
> Someone please tell me if I am misreading these pics.
> Clear skies,
> Jerry
>
>
>
>

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