How An OSC Loses Resolution & Gets It Back
Color astrocameras can lose resolution, and they can get it back. The problems are in the color filter array. And the solutions are in the density of pixels sampling the lens, and in the demosaicing.
Sources:
Resolution, aliasing and light loss - why we love Bryce Bayer's baby anyway www.dpreview.com/articles/356...
COLOR VS. MONOCHROME SENSORS www.red.com/red-101/color-mon....
RESOLUTION VS. ALIASING: IMPLICATIONS FOR MOTION CAPTURE www.red.com/red-101/resolutio...
THE BAYER SENSOR STRATEGY www.red.com/red-101/bayer-sen...
Color filter array recovery using a threshold-based variable number of gradients ui.adsabs.harvard.edu/abs/199...
Resolution www.photometrics.com/learn/wh....
Comparing color and monochrome camera sensor performance in astrophotography www.nightanddayastrophotograph...
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Пікірлер: 13
I've lost more than 5% resolution just by getting old so I probably couldn't see the extra fine details even if were in mono. That's the great irony of astrophotography. Astro is so damn expensive to get into, that by the time a person can afford to throw a few grand at a hobby, they tend to have professional careers and a pair of old and tired eyes.
@SKYST0RY
9 ай бұрын
The expense can be a challenge. Fortunately, I think we are at a point in the development of this tech where one doesn't need to break the bank to create good images. There are good mono cams that don't need much in the way of cooling, and less expensive filter sets. But the color cams have come a long way. What has generally been found is that for most people the difference between a color and mono cam is barely going to matter anymore under the seeing conditions most have to deal with.
Astronomy is the oldest science. Humans have always looked up at the night sky and wondered about what they saw. There has been so much recent growth in technology, not just in astrophotography. Innovation in astronomy requires thinking far ahead, this discussion proves that, adopting a new mindset will open many doors. Great content yet again.
Excellent, future videos on your processing philosophy and practice would be appreciated. You are on the cutting edge of something very important in this hobby. Kudos
@SKYST0RY
Жыл бұрын
Thank you! I am planning to post a processing video of the Trifid that you might enjoy.
I learned several new gems of info from this video! Thanks!
Thanks for all your work.
Another excellent video with great information, thanks for taking the time to make these videos, the information we have the better
Thanks!!
Not a comment, but a question. Are there near infrared Telescopes on earth and pointed toward sky? Or is long exposure and atmosphere a problem?
@SKYST0RY
7 ай бұрын
There are various IR observatories on Earth. Many private astrophotographers image in IR, too. They use a variety of techniques from speckle imaging to longer images. I wish I could give a more detailed reply but it's outside my realm of knowledge.
19:50 i just know someone is gonna write out a long ass comment, and then see this part.
@SKYST0RY
Жыл бұрын
I suspect you're right!