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Re: [APML] RE: Exposure formula. Was: Oh No! Kodak "Improves" Royal Gold

you have to explain 
> me why with the same film and same exposure time I
> get a ngc7000 
> brighter with the 50mm then with the 200mm..assuming
> you're right...:-)

Nicola,

You would be getting the same amount of light in both
shots, assuming same f/stop also. The 50mm lens would
put that light into a smaller area than the 200mm.

Alan

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