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

Started Jan 26, 2014 | Discussions thread
bobn2 Forum Pro • Posts: 62,180
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.

Now there was I, convinced you were an 'equivalence' plant because your 'essay' was so completely ludicrous and your reaction to any criticism was to accuse the other party of not knowing what they were talking about, while including more than enough elementary gaffes to show you hadn't a clue. Now you're trying to convince us you were for real. You're going to have to work harder on that one...

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