AstroPhotography - What is Gain and Offset?

I will help you understand what Gain and Offset are along with comparing images taken with HDR or Unity Gain camera settings.

**UPDATE*** 
The author of the blog I reference Jon Minnick left a comment below clarifying the QE value.  
"I just wanted to point out that the Quantum Efficiency value doesn’t really “cap” the top of the bucket or chop off how many electrons it can hold. Instead, the quantum efficiency indicates the rate that the bucket actually catches the incoming rain drops.  If there are 100 incoming raindrops, a camera with a QE of 60% will on average actually catch and count 60 of those 100 raindrops. Whereas a camera with a QE of 85% will on average catch and count 85 of those incoming 100 raindrops."

Check out the articles on Cloud Break Optics, They now have 7 parts to the series!  The articles I talk about are called Pixel by Pixel, Scroll back to part 1.
https://www.cloudbreakoptics.com/blog...

Join me over on Patreon where I will share my private astro notes, cheat sheets for processing images, DIY notes, Really anything I can come up with. On Patreon you can also reach out to me to ask questions or just be social and talk astro. Come geek out with me and join now.
Patreon:   / amyastro  

******Amy Astro Merchandise available here******* ****** https://www.redbubble.com/people/amya... ****

Disclaimer:
Some but not all links are affiliate links and if you make a purchase through this link, I will receive a small commission for referring you to the product. Thank you so much in advance if you decide to make a purchase of an item through the links provided.

Gear I use:
JMI Wheeley Bar: https://tinyurl.com/2nh7ekaj
Eagle PrimaLuceLab: https://bit.ly/3zP569b
Telescope RASA: https://bit.ly/3QD8P0j
Telescope DOB 10: https://amzn.to/3zYsDVw
Telescope DOB 8: https://amzn.to/3pcw9Xh
Camera Mono 1600: https://bit.ly/3vYc5eM
Camera Mono 533: https://bit.ly/3dswm5Z
Camera Color 294: https://amzn.to/3Pipntx
Filter Drawer: https://bit.ly/3Qlv8YR
Mini Guide Scope: https://amzn.to/3bQvN5u
Mini Guide Camera: https://bit.ly/3JX2kDG
Rings: https://tinyurl.com/hxy84fv7
Dovetail: https://bit.ly/3bQvffW
Assorted Rings: https://tinyurl.com/455twmmj
Camera Color 183: https://amzn.to/3dsKV9t
Light Pollution Filter L-Pro: https://amzn.to/3dvLqzW
Filter Ha: https://amzn.to/3AetVgj
Filter Oiii: https://amzn.to/3SLVchu
Filter Sii: https://amzn.to/3PkjCvi
Mount: https://amzn.to/3peiZZL
Dew Heater Ring Celestron: https://bit.ly/3QvgWMy
Dew Shield Celestron: https://bit.ly/3JQvgNw
Dew Controller/Power Distribution: https://bit.ly/3JNUIDg
Scope PC: https://amzn.to/2GjkEdF
Storage Upgrade to 1T: https://amzn.to/33AmsYv
Link to Gerd Neumann https://www.gerdneumann.net/english/a...
Must Have Setup Gear Compass https://amzn.to/2Cqt4xL
Bubble Level https://amzn.to/3eelpk4
Collapsible Stool https://amzn.to/34ewJKH
Must Have Spare Parts
Misc M8 Screws https://amzn.to/30Q7vQS
Misc M6 Screws https://amzn.to/2XY8xZ1

Follow me at:
Patreon:   / amyastro  
Website: https://www.amyastro.com
Facebook:   / amyastroadventures  
Instagram:   / amy_astro_photography  
Astrobin: https://www.astrobin.com/users/AmyAstro/

Check out the darkest skies in Georgia. Link to Deerlick Astronomy Village for more information.
https://deerlickgroup.com/membership-...

Companies that Support My Creativity
Optical Structure/Far Point/ JMI https://tinyurl.com/y6gnfgvf
FarPoint Astronomy: Subscribe for 10% off First Purchase https://tinyurl.com/2q2vzvyy
Explore Scientific https://bit.ly/3AGn5yA
Celestron: https://bit.ly/3QjxdEt
ZWO: https://bit.ly/3vYVTtI
Amazon Store https://www.amazon.com/shop/amyastro

#AmyAstro,#AmyAstroPhotography,#AmyAstroAdventures,#TBAIC