Auto power off
Auto power off is the camera setting that puts the camera to sleep after a set idle time to save battery — and drops any USB or Wi-Fi tether when it does.
To save battery, cameras switch off or sleep after a period without use: often a minute by default. On Nikon it's tied to the standby timer; on Canon and Sony it's in the power-saving menus. Waking the camera is quick, but while it sleeps it isn't talking to anything.
For tethering, that means a dropped connection every time you pause.
How it works
When the idle timer runs out, the camera powers down its sensor, screens and usually its USB and Wi-Fi links. A tethering app sees the camera disappear. On waking, the camera has to be found again — over USB that's usually quick, but over Wi-Fi it can mean re-joining the network and, on some bodies, approving the connection again.
An example: speeches with long gaps
During wedding speeches a photographer shoots in bursts with long pauses. The camera sleeps after a minute each time, and the Wi-Fi tether reconnects again and again. Setting auto power off to 30 minutes for the day keeps the link steady.
Auto power off and CloudTether
A sleeping camera is the commonest cause of tether dropouts — CloudTether's camera disconnects during tethering page starts here. Lengthen or disable auto power off, keep the battery charged and anchor the cable. On the phone side, keep CloudTether open with Pocket mode rather than locking the phone. Shots taken just before a dropout queue and transfer once the camera is back.
Battery trade-off
A camera that never sleeps uses more battery. Carry spares, or power the camera from a supported USB PD source where your body allows it.
Tips and common mistakes
- Set auto power off to the longest option you can afford for tethered jobs.
- On Nikon, check the standby timer as well.
- Turn power saving back on for everyday shooting.
Put it into practice
CloudTether tethers your camera to your phone and delivers every shot to the cloud, live as you shoot — no laptop.