Just bough the LRT Pro Timer for astro. So Newb question.

If I am setting long exposures for astro (15 secs and above) and applying a 2 second interval on the timer, will the interval be 2 secs or 15+2 secs = 17 secs (shutter speed + interval or simply interval only).

Thanks,

A

Interval is always Exposure + Dark time. The interval goes from one opening of the shutter to the next.
So with 15 secs Exposure you would set an interval of 17 secs.