• Zink@programming.dev
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    2 days ago

    It’s that way with Webb since it focuses on infrared, but I thought hubble used the visible spectrum.

    After a brief search, it looks like Hubble uses the entire optical spectrum which includes some IR and UV along with visible. It depends on the specific image, but the deep field stuff looks like it was a combination of visible and IR, which makes sense considering red shift. But the bluer objects were captured in the visible.

    So they inevitably had to compress the spectrum for the photos, but speaking as somebody who has taken tens of thousands of photos in RAW format, all the colors in every photo are translated data. :) (that also goes for the screen displaying the final image using a mix of three wavelengths rather than the actual colors of the original light)