Hey all! I'm having some trouble getting clear answers on how exactly to set up the interval timer on my cameras. Admittedly, this is a function I've never really used much but I'm looking to get into more star trails and time lapses, so I've gotta master it. I have several questions here: If I want to shoot 30 second exposures with 5 seconds in between them, how would I do this? Do I set the interval to 35 seconds? or to 5 seconds? (In other words: does the timer start when the shutter opens? or when it closes?) Either way *seems* to work, but I'm not sure what the proper way is and the manual isn't very clear here. Also, I've run into issues in the past where the buffer hasn't been able to keep up with long exposures with short intervals; is there a way to determine how large my interval needs to be to avoid overloading the buffer? This is especially an issue when shooting star trails, as I really want my 30 second exposures to be as close together as possible to avoid the "zipper" effect in the trails. Thanks in advance!