"The Nikon D5 remains the camera of choice for the Artemis II mission and will be assigned primary photographic duties. It is a proven, highly-tested camera that the Artemis II team knows will excel in the high-radiation environment of space. However, as Artemis II Commander Reid Wiseman explained ahead of yesterday’s launch, he successfully fought to have a single Nikon Z9 added to Artemis II’s manifest."
There are more interesting details in the PetaPixel article, such as: "'That’s the camera that they’ll be using, the crew will be using on Artemis III plus, so we were fighting really hard to get that on the vehicle to test out in a high-radiation environment in deep space,' Wiseman said."
H/t to "SiliconEagle73" who linked to that PetaPixel article in the thread linked below.
I'd argue the D4s and D5 may be some of the best high ISO cameras I'm aware of maybe surpassed by that one canon video camera that can seemingly see in the dark (sorry I'm mobile) and the D3s. I think the lower numbers produce nicer looking max ISO noise but that's all preference. Sony has the A7s as well but as with some of these the overall resolution isn't extreme.
Newer backside illuminated sensors have better quantum efficiency and are sensitive to a greater fraction of the light hitting the sensor thanks to the lack of electronics physically blocking the photosites. Not to mention advances in read noise and other stuff (less relevant for high end CMOS sensors for short exposures, which are shot noise dominated, but still).
From what I recall reading its more or less, "we have established and validated processes for using the D5."
Its less about getting the best possible photo, more about making sure what they do take looks fine and doesnt waste a ton of time.
