There are several ways to open the Camera app in iPhone. This tutorial shows three best tricks to access your Camera. With these tricks, you can literally start shooting in less than a second.
Raise to wake up your iPhone, then swipe left across the lock screen. The camera will open instantly.
Step 1: Swipe up from the bottom of the screen to open the Control Center.
Step 2: Tap the camera icon and you’re ready to shoot.
From your Home screen, tap the Camera app.