On Fri, 23 Feb 2018 08:26:29 -0800 (PST), RichA
wrote:

On Thursday, 22 February 2018 18:46:28 UTC-5, palsing wrote:
On Wednesday, February 21, 2018 at 11:55:32 PM UTC-8, RichA wrote:
It's an infra-red telescope. It will image from orangish to IR, no yellow, no green, blue or violet light. It's mirrors are gold-plated, so the visual images are not going to be the glorious full-spectrum ones we got from the Hubble. This is what you will be seeing:

http://hubble.stsci.edu/webb_telesco...upiter-big.jpg

http://hubble.stsci.edu/webb_telesco...romeda-big.jpg

No doubt NASA, in order not to disappoint people will fake-colour them.

Here is another source that offers comparative photos...

https://jwst.nasa.gov/comparison_about.html

Wonder where the blue in the infra-red images came from? Also, resolution is lowers (though of course the Webb is much larger than Hubble) due to being in the IR end of the spectrum.

Well, in the Carina Nebula image, the data was collected through
narrow band filters, red mapped from the F126N filter (1.26 um, an FE
II line), green mapped from the F128N filter (1.28 um, a H line), and
blue mapped from the F164N filter (1.64 um, another Fe II line).