Now that I got a Skyguider Pro, I can finally be shooting subs longer than a few seconds.
I have a Sony A7III and an A7RIII. I also have the Sony Imaging Edge app for Android.
Now, the problem is that although I can access BULB mode via the app, I don't seem to find a way to shoot intervals (e.g. 50 x 2 minute subs with 5 seconds in between them). Without the app I can do interval shooting with the built-in intervalometer on both bodies but those max out at 30 seconds, no BULB mode.
Is there any workaround, or I need a different app or tethering?