Re: [OM] Definition of "Normal" (Re: panasonic 20mm am I mad)

[Chuck Norcutt]

c² = a² + b²

Chuck

On 5/9/2011 9:41 PM, Fernando Gonzalez Gentile wrote:
> How does Pithagoras fit in here?
>
> ;-)
>
> Fernando.
>
> On Mon, May 9, 2011 at 3:24 PM, Chuck Norcutt
> <chucknorcutt@xxxxxxxxxxxxxxxx>  wrote:
>> A lens of focal length equal to the diagonal of the film or sensor.
>>
>> Chuck Norcutt
>>
-- 
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