Choosing the ISO for time-lapse photography

- ISO is the general sensitivity of your sensor.…You can increase this so it's more susceptible to light.…However, as you bring it up,…you're going to add noise to the shot.…I use ISO as the third adjustment to make…so I can refine my exposure.…If the ISO is too high,…I'm going to get noise.…I could clean that up in post-processing…but it leads to extra work.…I recommend you keep your ISOs relatively low.…If you can't pull that off,…the good news is that you can use things…like Adobe Photoshop or Lightroom to clean it up,…but don't go too aggressive.…

Similarly, you might lower the ISO…to cut down on the sensitivity of the sensor.…If you're getting too much sensitivity to light…and you still can't fix it,…it's time to put a neutral density filter on the front.…You can use a standard neutral density filter…or for example, I've been shooting today…with one from Tiffen,…that's a variable neutral density filter,…and this lets me dial it in.…They're really awesome when you shoot time lapse…'cause they give you the flexibility…