Uploaded May 2024 | Updated September 2026, 5 days ago
Let's explore an assumption and a question that were brought up after my last two videos on the advantages of drizzling. The assumption was: Drizzling well sampled information is pointless if the information came from a telescope of greater than 1000 mm focal length. How accurate did actual experimentation prove this statement to be? And the question was: If your image is well sampled, isn't it better to drizzle 1x instead of 2x? Experimentation shows the answer is a little complex, and even revealed how the myth that drizzling is bad for well sampled images may have evolved. But experimentation also revealed there is a way to take advantage of the outcomes and make 1x and 2x drizzling work together to improve your images even more.
You can view the fully developed drizzled 2x image of the Ghost Nebula here: astrobin.com/xorr7d
You can view higher res versions of all five of the images discussed in this video here and draw your own informed conclusions: astrob.in/wzvztq/E
An abridged, semi-technical paper on the development of drizzling for the Hubble Space Telescope. https://www.stsci.edu/~fruchter/dither/drizzle.html
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Check out a portfolio of astro imagery shot from the Sky Story Observatory at Astrobin: astrobin.com/users/SkyStory
We are Telescope Canada's first affiliate. It's a great place for astrophotography gear. Using the following link adds nothing to your cost but helps us produce more educational videos about this amazing universe around us. https://telescopescanada.ca?bg_ref=KK15sLXmWw
All videos best viewed in 4K.
Peer into the cosmos on Sky Story and along the way come to appreciate our world all the more. Here, we explore the realm of nature beyond our Earth through the fields of astronomy and astrophotography.
All our programs are committed to the standards of scientifically accurate, high quality content that aims to educate and inspire. New videos are posted almost weekly, so please subscribe.
#astronomy #astrophotography #space #nebula #stars
Let's explore an assumption and a question that were brought up after my last two videos on the advantages of drizzling. The assumption was: Drizzling well sampled information is pointless if the information came from a telescope of greater than 1000 mm focal length. How accurate did actual experimentation prove this statement to be? And the question was: If your image is well sampled, isn't it better to drizzle 1x instead of 2x? Experimentation shows the answer is a little complex, and even revealed how the myth that drizzling is bad for well sampled images may have evolved. But experimentation also revealed there is a way to take advantage of the outcomes and make 1x and 2x drizzling work together to improve your images even more.
You can view the fully developed drizzled 2x image of the Ghost Nebula here: astrobin.com/xorr7d
You can view higher res versions of all five of the images discussed in this video here and draw your own informed conclusions: astrob.in/wzvztq/E
An abridged, semi-technical paper on the development of drizzling for the Hubble Space Telescope. https://www.stsci.edu/~fruchter/dither/drizzle.html
*** *** ***
Check out a portfolio of astro imagery shot from the Sky Story Observatory at Astrobin: astrobin.com/users/SkyStory
We are Telescope Canada's first affiliate. It's a great place for astrophotography gear. Using the following link adds nothing to your cost but helps us produce more educational videos about this amazing universe around us. https://telescopescanada.ca?bg_ref=KK15sLXmWw
All videos best viewed in 4K.
Peer into the cosmos on Sky Story and along the way come to appreciate our world all the more. Here, we explore the realm of nature beyond our Earth through the fields of astronomy and astrophotography.
All our programs are committed to the standards of scientifically accurate, high quality content that aims to educate and inspire. New videos are posted almost weekly, so please subscribe.
#astronomy #astrophotography #space #nebula #stars
