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Re: [Rollei] Re: OT: retrofocus & inverse square



Eric

You actually want to put a FAN inside the lens? (rotating star)

Jerry

Eric Goldstein wrote:

> I'm waiting for someone to resurrect the clever Goerz solution employed on this lens rather than have us buy a 400 dollar custom filter...
>
> Eric Goldstein
>
> -----Original Message-----
> From: Richard Knoppow <dickburk  >
> Sent: Jan 9, 2004 2:07 PM
> To: rollei  us
> Subject: Re: [Rollei] OT: retrofocus & inverse square
>
>    BTW, while the fall off of a "normal" lens is given as
> cos^4 theta (theta being the image half-angle) some lenses
> have more for various reasons. The famous Goerz Hypergon is
> an example.
> ---

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