Focal length 35mm equivalent, but not F-stop?

Started Jul 24, 2014 | Discussions thread
Tim Tucker Senior Member • Posts: 1,337
Re: Let's correct it, then.

Erik Magnuson wrote:

Tim Tucker wrote: -

Is this the same as saying all f2 lenses transmit the same amount of light, but different sensor sizes collect different total amounts for the same exposure?

Amount is not a precise term. A 55gal drum and a 20oz red solo cup left out in the rain might both collect 1" of water. Is the same "amount" of water collected in each?

Eh? Total amount IS a precise term. Measure your volume in litres and you have a precise answer. But that is not what I asked.

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