5MP Mini camera sync question

Planning on getting some 5MP mini modules soon but had a couple questions about their hardware trigger.

1.) If I were to trigger all the cameras to take a photo at the same time using the same GPIO pin set to HIGH, would there be latency between photos? I 'd be reading them one at a time, just the actual photo will be exposed simultaneously.

2.) It’s my understanding that just sending a 3.3v signal to the trigger pin will take a photo and store it on the frame buffer until it’s read by a MCU. Is that correct? How would you change the resolution of the photo taken by the trigger pin?

Are there any more guides on how to use the trigger pin without the arduino multi camera adapter?

Thanks so much!

Wanted to follow up on this, anyone have any experience using these cameras? And possibly getting multiple ones to sync their exposures?