4K Ultra HD Camera

Application has been designed to need photos glorious
Capture the moment with high resolution and quality is presently easier
Save the tremendous photos in your big day
You can build knowledgeable recording

Camera HD requires Android 4.0.3 or better. I've tested Open Camera on my Nexus 6 (Android 5.0-7.0), Nexus 7 (2013) (Android 5.0-6.0) and Galaxy Nexus (Android 4.0.3-4.3).

Features

Option to auto-stabilise so your pictures are perfectly level no matter what.
Expose your camera's functionality: support for focus modes, scene modes, color effects, white balance, ISO, exposure compensation/lock, face detection, torch.
Video recording (supports all available resolutions including HD).
Handy remote controls: timer (with optional voice countdown), auto-repeat mode (with configurable delay).
Option to take photo remotely by making a noise (e.g., voice, whistle), or by voice command "cheese".
Configurable volume keys.
Optimise GUI for left or right-handed users.
Zoom via multi-touch gesture and single-touch control.
Option to lock orientation to portrait or landscape for photo or video.
Choice of save folder (including support for Lollipop's Storage Access Framework).
Disable shutter sound.
Overlay a choice of grids (including "rule of thirds") and crop guides.
Optional GPS location tagging (geotagging) of photos and videos; for photos this includes compass direction (GPSImgDirection, GPSImgDirectionRef).
Apply a date and timestamp, location coordinates, and custom text to photos; store date/time and location as video subtitles (.SRT).
Yes you can take a selfie (also known as front camera), includes support for "screen flash".
Support for (some) external microphones.
Widget to automatically take a photo after launching.
Support for Android 5 Camera2 API: manual focus distance; manual ISO; manual exposure time; RAW (DNG) files.
Support for HDR and Exposure Bracketing (Camera2 only).
Dynamic range optimisation mode.
Small file size.
Completely free and ad-free, unlike most Android apps.