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Lecture 15: Cameras and Lenses (49)
kingdish

Note that the ratio between neighboring F-stop is 2\sqrt{2}

serser11

I am confused by the sentence on the lower part of this slide. From my understanding, if the exposure is too dark, I should adjust the shutter up. But from the order of how it puts bright/dark that corresponds to up/down, it seems to mean the opposite. Which one is correct?

zsano1

I think you are correct.

michellebrier

I thought since exposure = time * irradiance, if the image is currently too dark, you adjust the shutter speed down to increase time, which increases exposure. So bright/dark corresponds to up/down.

Julius-c

As a supplement, 'shutter' means 'shutter speed', so shutter up means shutter speed up and exposure time down.

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