What I'm looking for may not exist but I thought I'd ask here first. I know product recommendations are kind of verboten, but I'm coming up empty when I look on the Google. The goal is to accomplish several disparate tasks (Canon 5DmIII):
- Time exposures in excess of 30 seconds
- Bracketed HDR exposures in groups greater than 3 (7 and 9?) at user-defined exposure variation (i.e., -3, -2, -1, -, +1, +2, +3)
- Exposures at preset intervals for a given duration (like, every 30 seconds for 6 hours)
I don't want to use my phone for this and there may not be a single simple device that fills the bill but it seemed these techniques are common enough that somebody would have come up with a commercial (not DIY) solution. Has anyone seen such a solution?