Debayering often leads to dim nearly B/W images after stacking - RGB-Align causes red/blue image-edges in the resultingimage. when LRGB is checkmarked (at stack) the final image at wavelets is black. Avi's that have a non-zero starting position (reported when the AVI is loaded in Virtualdub) do not load. CombineZP should run fine on an Intel Mac (after you get rid of OS/X and install Windows). Edit: Since a lot of people seem to have missed the point and think this isn't helpful, let me try to put things more directly. I am reasonably certain there is not currently any free (in either sense) software for stacking that runs directly on MacOS and is anywhere close to as good as CombineZP.
- Focus Stacking Software
- Best Photo Stacking Software For Mac
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It's been a good three years now since I swapped my HP laptop for a Macbook Pro. In the mean time, I've started doing a bit more astrophotography and of course the change of operating system has affected the tools I use to obtain and process photos.
Amateur astronomers have traditionally mostly used Windows, so there are a lot of Windows tools, both freeware and payware, to help. I used to run the freeware ones in Wine on Ubuntu with varying levels of success.
When I first got the Mac, I had a lot of trouble getting Wine to run reliably and eventually ended up doing my alignment and processing manually in The Gimp. However, that's time consuming and rather fiddly and limited to stacking static exposures.
However, I've recently started finding quite a bit of Mac OS based astrophotography software. I don't know if that means it's all fairly new or whether my Google skills failed me over the past years :-)
Software
I thought I'd document what I use, in the hope that I can save others who want to use their Macs some searching.
Some are Windows software, but run OK on Mac OS X. You can turn them into normal double click applications using a utility called WineSkin Winery.
Obtaining data from video camera:
- oaCapture (MacOS X, free)
- AstroImager (Mac OS X, payware, free trial)
Format-converting video data:
- Handbrake (Mac OS X, free, open source)
Processing video data:
- AutoStakkert! (Windows + Wine, free for non-commercial use, donationware)
Focus Stacking Software
Obtaining data from DSLR:
- AstroDSLR (Mac OS X, payware, free trial)
Processing and stacking DSLR files and post-processing video stacks:
- RegiStax (Windows + Wine, free)
- Nebulosity (Mac OS X, payware, free trial)
Post-processing:
- The Gimp (Max OS X, free, open source)
Telescope guiding:
- AstroGuider (Mac OS X, payware, free trial)
- PHD2 (Mac OS X, free, open source)
Hardware
A few weeks ago I bought a ZWO ASI120MC-S astro camera, as that was on sale and listed by Nebulosity as supported by OSX. Until then I'd messed around with a hacked up Logitech webcam, which seemed to only be supported by the Photo Booth app.
I've not done any guiding yet (I need a way to mount the guide scope on the main scope - d'oh) but the camera works well with Nebulosity 4 and oaCapture. I'm looking forward to being able to grab Jupiter with it in a month or so and Saturn and Mars later this year.
The image to the right is a stack of 24x5 second unguided exposures of the trapezium in M42. Not too bad for a quick test on a half-moon night.
Settings
I've been fiddling with Nebulosity abit, to try and get it to stack the RAW images from my Nikon D750 as colour. I found a conversion matrix that was supposed to be decent, but as it turns out that made all images far too blue.
The current matrix I use is listed below. If you find a better one, please let me know.
| R | G | B | |
|---|---|---|---|
| R | 0.50 | 0.00 | 1.00 |
| G | 0.00 | 1.00 | 0.00 |
| B | 1.00 | 0.00 | 0.50 |
Absolutely!
First, take a good look at the CamRanger camera controller. This little device plugs into your camera and provides wireless connection to a smartphone, tablet, or laptop/desktop computer. It lets you live view and control focus without touching the camera at all. With most cameras, it even provides automatic focus stacking – just set limits and step size, push the Shoot Stack button, and watch the CamRanger and camera do all the work of shooting the stack.
Best Photo Stacking Software For Mac
If you're shooting small subjects, then take a look at the StackShot rail, a product of Cognisys Inc. It’s a very slick piece of automation that makes shooting even deep stacks of small subjects quick and painless. Zerene Stacker Professional and Prosumer Editions now include a direct interface to the StackShot rail – see HERE for details.
Free Photo Stacking Software
For larger subjects, consider using software to automatically control the focus motor inside your lens. There are several good alternatives, depending on what type of camera and computer you have. See our Tutorials for more information about those.
Image Stacking Software For Mac
If you're shooting landscapes and you have an iPhone or iPad, then consider getting a copy of the FocusStacker app, by georgedouvos.com. It's an interactive calculator that will give you optimum focus distances depending on your scene and lens settings.