Wow you're right, huge difference in the sizes of the "full res" images: > MIRI:... | Hacker News

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fumblebee on July 12, 2022 | parent | context | favorite | on: James Webb first images – complete set of high res...

Wow you're right, huge difference in the sizes of the "full res" images:

> MIRI: Full Res, 1306 X 1133, TIF (1.78 MB) [1]

> NIR Cam: Full Res, 4833 X 4501, TIF (24.06 MB) [2]

Maybe it's a mistake, they suggest it should offer an "incredible amount of detail":

  This Mid-Infrared Instrument (MIRI) image also offers an _incredible amount of detail_, including a cache of distant galaxies in the background.

[1] https://webbtelescope.org/contents/media/images/2022/033/01G...

[2] https://webbtelescope.org/contents/media/images/2022/033/01G...

DiogenesKynikos on July 12, 2022 | [–]

MIRI works at longer wavelengths than NIRCam, so its angular resolution is lower (longer wavelengths mean more diffraction). It also has a smaller field of view.

Those two factors mean that it has fewer pixels per image.

TremendousJudge on July 12, 2022 | [–]

Well, it's incredible in the sense that I can't believe it

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