Author Topic: rtemote control/focus stacking et al...  (Read 1964 times)


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rtemote control/focus stacking et al...
« on: September 19, 2021, 12:58:20 PM »
Hey Folks,

I'm in the process of gathering hardware to build a stack rail, based loosely on this project (

My target cameras are Canon 550D and 600D

I am interested in finding out what (sensible) approaches I might consider to triggering the camera (and flash)  -  is this something Magic Lantern can help with - via an API or python/arduino library?

IIUC the current favoured response is to fake the cable trigger/electronic trigger (very hardware, much hack), but it'd be extra nice to be able to adjust camera settings and get feedback from the camera.


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Re: rtemote control/focus stacking et al...
« Reply #1 on: September 19, 2021, 05:54:06 PM »
"Faking" the cable trigger is really easy, which is probably why that's recommended.  It's a standard connector and you just need to bridge two wires, so you can attach it direct to GPIO.  I wouldn't expect you'd want to change camera settings per shot for a stacker?

If you can be more specific about what you hope ML might help with, we can give a better answer.  You certainly can use ML to take a picture.  You can control many cams, including Canon cams, via PTP, for which there are libraries available.

Walter Schulz

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Re: rtemote control/focus stacking et al...
« Reply #2 on: September 19, 2021, 08:03:37 PM »
One of those PTP options: gphoto2. Maybe a RP-compatible device offers more flexibility