Re: [OM] KEH repairs/lens cleaning

[Winsor Crosby]

>  >A friend/colleague worked briefly at Lick Observtory in northern CA, where
> > a generation or so back one or their peons went crazy, took a .45 into
> > the prime focus cage and started shooting at the main mirror. Not only
> > didn't the mirror crack (foot-thick annealed glass is pretty close to armor
> > plate) but after they painted the little holes black some people claimed
> > the seeing had actually improved slightly.
> >
> > Considering that you don't see front mirror of a cat lens in the in-focus
> > section, I'm not surprised that 100f area would be around the threshhold.
> > Planar waveforms are amazingly robust.
> >
> > paul
> This implies that we should all be buying bargain lenses with scratched
> front elements and blacking the scratches. Hmmmm.
> AndrewF
Or even improving our perfect lenses by painting black spots on them!
--
Winsor Crosby
Long Beach, California

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