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Hmm. Can you image far infrared with lenses? Wouldn't the imager just "see" the lens? I don't see any mention of infrared in the article, so they may just be g
by csours 3y ago
Hmm. Can you image far infrared with lenses? Wouldn't the imager just "see" the lens?
I don't see any mention of infrared in the article, so they may just be going for visible light
- malfist 3y agoYes you can, but not from earth. The earth is too warm for that it has to be in space. Typically as long as the lens has a transmission for that wavelength it'll go through. A lot of your astrophography on the earth happens partially in the IR band. Hydrogen Alpha is a common emission spectrum to capture, and about 75% of it falls in the IR range. Your common cameras (DSLR, etc) have IR filters specifically to prevent IR from reaching the sensor after going through the lens. If they're only trying to capture in visible, then a better comparison would be the hubble, not the JWST. Source: am an astrophotographer, see: https://www.jeromehollon.com/ https://www.jeromehollon.com/
- csours 3y agoNeat! I bought a 200 mm mirror and other stuff to make a Newtonian telescope, but I only got halfway through putting it together before I got distracted. Where do you take your images? One of the pictures looks like a back yard.
- malfist 3y agoYup, I take them from my back yard in suburban kentucky. Bortle 7, so about what you'd expect in the suburbs of any large city. Building a newt is exciting! It's something I've always wanted to try.
- nonameiguess 3y agoIf you only capture visible light, you can't surpass the JWST. The entire point is very distant galaxies and astronomical bodies have red-shifted to the point they're no longer visible and can only be seen by infrared.