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porphyrayesterday at 10:03 PM6 repliesview on HN

I'd have probably shot it wide open at f/2.8 rather than cranking the ISO up to 51200. Incredibly impressed at the steady hands for a sharp image at 1/4 s shutter speed though! Maybe they just let the camera float in space with the mirror up, triggering it remotely.


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throw0101dyesterday at 10:56 PM

> I'd have probably shot it wide open at f/2.8 rather than cranking the ISO up to 51200.

One of the reasons the D5 supposedly was chosen was because of its high dynamic and good low light performance. It can go up to ISO 3,280,000:

* https://en.wikipedia.org/wiki/Nikon_D5

The D5 has been used on the ISS, including EVAs, since 2017, so is a known quantity:

* https://en.wikipedia.org/wiki/List_of_cameras_on_the_Interna...

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ourmandaveyesterday at 11:11 PM

You can get a D5 on amazon.com. It would be amazing if one of the astronauts did a review explaining how it performs in space.

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jen729wtoday at 2:17 AM

You might misunderstand how ISO works on digital cameras. (I did.)

https://www.youtube.com/watch?v=ZWSvHBG7X0w

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js2today at 3:22 AM

Wide open generally sacrifices lens sharpness.

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narmiouhyesterday at 10:43 PM

I would imagine since they are not circling the earth, that there will be pull of gravity and the camera would start to move relative to the spacecraft. But may not fast enough for a short exposure

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treisyesterday at 10:40 PM

They're in space so they only sort of need to hold the camera.

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