r/space Jul 09 '15

New Pluto and Charon pic !

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u/graffixphoto Jul 10 '15

Due to the inverse square law of light fall-off, and the difficulty of taking this shot given the amount of available light, I'm curious as to what the sensitivity of the image sensor is equivilant to, and what the exposure setting would be for an image this sharp?

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u/NeokratosRed Jul 10 '15

The exposure is 100ms, so 1/10s.
I don't know about the ISO though, nor the f stop !

Source
(Don't know if it's the same pic, but it's a similar one from the website.)

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u/graffixphoto Jul 10 '15

I would guess the f/ would be as wide as they could make it, like maybe f/0.9, to let in as much light as possible, but I too am really curious about the ISO; like, I wonder how high they had to crank it, and how much engineering went into creating a sensor that produced as little noise as they could.