Thanks. I appreciate that. I use my handy Canon 5DmkII. I pretty much only shoot timelapse on that body, and it has over 250,000 shutter clicks. The lenses change depending on what I have with me. I've used Canon 24mm f/1.4, 35mm f/1.4, 20mm f/2.8, Rokinon 14mm T/1.5, 24mm T/1.5. I have a couple of sliders that I use for timelapse. One I hand built using an Arduino and different components on a 1000mm rail driven by a lead screw, and I also have a Syrp Genie I use with a cheap 24" sub $100 carbon fiber rail kit that fits nicely in my suitcase for trips involving checked luggage. I also have a collection of wired intervelometers. I also run MagicLantern firmware on the Canon. I use it for the ETTR abilities for handling bulb-ramping sunset/sunrise setups, but I will still use an external intervelometer for the shutter release. I have found that the MagicLantern intervelometer is not reliable, especially for intervals less than 5 seconds between shots. However, even at a 5 second setting, it will randomly take 2 shots in quick succession and then goes back to the desired interval. Never had an issue with an external controller.
edit: corrected one of the lens focal lengths