A reminder for some memebers as to what the F stop is all about.

Started Jan 26, 2014 | Discussions thread
pris Senior Member • Posts: 2,191
Re: Please, refer to the original point of discussion:

gsergei wrote:

Someone in Dave Gaines' thread exclaimed:

"convince me, that an Olympus 25mm F/2.8 produces the same light" as a FF lens at F/2.8"

then someone referred to a "guru" , saying" that bigger sensor "gathers" (I totally hate this) more light. This statements prompted me for my essay. That's all. Then the topic was highjacked by other people. I wasn't going to cut circles ad infinitum about DOF and FOV, which topics have already been beaten up to death.

best wishes.

Well, I addressed your particular statement which I quoted. If all you try to discuss is the light meters and what they indicate, you are correct. You however in this thread entered the field of that dreaded equivalence, and that assumes equivalent images for cross-format comparison, whether you intended to "cut circles ad infinitum about DOF and FOV" or not. If you agree that with my additions your thesis does not hold anymore, I nod with satisfaction and retreat.

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