Open Camera is a full-featured camera application and completely free. features:
+ Practical remote controls: timer, automatic repeat mode.
+ Configurable volume keys and user interface.
+ Preview option upside down for use with attachable lenses.
+ Overlay a selection of grids and clipping guides.
+ Panorama, even for front camera.
+ Support for HDR and exposure bracketing.
+ Options for on-screen histogram, zebra stripes, focus peak.
+ Focus bracketing mode.
+ Completely free, and without ads in the application. Open source

Supported Android
(4.1 and up)
Ice Cream Sandwich (4.0 – 4.0.4),Jelly Bean (4.1 – 4.3.1),KitKat (4.4 – 4.4.4),Lollipop (5.0 – 5.1.1),Marshmallow (6.0 – 6.0.1),Nougat (7.0 – 7.1.1),Oreo (8.0-8.1), Pie(9.0)

Download Open Camera 1.48wip APK

OpenCamera_1.48wip.apk