This is just like school: you have homework.
I’ve recently written an article discussing whether or not stacking (integrating, combining, reducing) multiple exposures is worth the trouble.
The short answer is: yes.
The long answer is in the article.
However, you may need to try it out to make up your mind. So, I’m going to help you! During a trip to the Kalahari Basin, on the border of South Africa and Namibia, I decided it would be a good idea to shoot some (11) static tripod, shorter-exposure, high-ISO Milky Way images specifically with the intention to share with you the raw data. It was HOT…43C during the day. So, these may be particularly noisy.
Above is a single image, straight off the camera, completely unedited. Scary stuff.
All exposures were shot with a Canon 5D Mark III on a static tripod.
- Lens: Canon f2.8 L2 24-70mm, at 24mm and f2.8
- ISO: 6400
- Exposure length: 15 seconds
- Long-exposure noise reduction: off
- High ISO noise reduction: on, at highest setting (three bars)
- White balance: 4250 Kelvin
- It was HOT — so there is significant thermal noise
So, download my data (all 11 images, 300+MB), and get to stacking (playing) with it!
If you just want a single raw image, you can get one here: download a single raw image
Share your results with me! Let me know in the comments and/or on social networking.
It’s the rules.