Before we launched Triggertrap Mobile 2.0, we strongly recommended against it.
After Triggertrap Mobile 2.0, it's no longer possible to use automatic focus; we wrote a little bit more about why in our blog.
There are many reasons for this, including:
- When you are doing automatic triggering, you’ll probably not be there to check whether your camera’s auto-focus is correct. That means you may come back to a memory card full of blurry photos, if it turns out that your auto-focus was struggling
- To allow for the auto-focus to do its thing, we have to delay the shutter triggering. Obviously, this isn’t great if you are working with, say, a time trigger.
- The focus delay can be very annoying, especially if you’re trying to work with a sound-trigger or similar.
- We can only send a fixed focus duration. If we set a 1-second time for focusing, Sometimes, your camera will be 'hunting' for focus for longer than 1 second, and the camera wont' take a picture. Other times, it will focus in 0.2 seconds, and then there's a 0.8 second delay that is unnecessary.
All of these issues are fixed by using manual focus...
Quick link to this FAQ: http://tri.gg/autofocus