The difference between spending billions on one camera compared to spending a couple thousand on a full system.
Also, storing a few high-res images takes a lot less space than storing hours/days/weeks/months of high-res videos.
Also, observing a minuscule area of the sky for days or weeks will produce a much better image than the full field of view for 1/24th of a second in low light.
Doesn’t JWST have to account for its own orbit around L2 and stellar parallax (depending on distance)? I assumed it would have to have some tracking.
True, but those are minute parallax changes, not “entire view angle in 8 seconds”.
Multiple billion $ camera vs 30$ camera
The Webb telescope has roughly 54 megapixels of sensors. It cost about 10 billion dollars. So around 185 million dollars per megapixel.
Home Depot has 1080p security cams for about 20 dollars. 1080p is 2.1 megapixels. So about 9.5 dollars per megapixel.
My phone camera has a max resolution setting of 8000x6000 (48MP)
Purchased on sale (black Friday) in Canada. Total payment was 360$CAD. $7.50 /MP
Also have a 2k security camera I was gifted. Retail about 130. $30/MP
Security camera can do night vision and full color night time.
It isn’t the megapixels.
It’s the sensors.
Those galaxies are maybe slightly bigger than that dude.
Picture quality is so awful that the guy has to be a few centimeters tall.
left picture is underestimating the distance by about 2.5 factor
Why won’t the robber stand still for 78 hours so we can take a deep field time exposure of him?