Is the sign for 'camera' the same as 'take a picture'?
They are very closely related! 'Camera' is typically signed as a noun with a smaller, repeated clicking motion. 'Take a picture' is often signed with a single, more pronounced click and sometimes a slight forward movement to emphasize the action.
Do I click both index fingers or just one?
You can click just your dominant index finger, as that mimics how a real camera works, but many signers naturally click both index fingers simultaneously. Either way is perfectly acceptable and easily understood.
How do I sign a phone camera?
While the traditional 'camera' sign is still widely understood for all cameras, you can also mimic holding a smartphone with two hands and tapping the screen with your thumb to specifically describe taking a picture with a phone.