Duoptra - Dual Camera

Duoptra is a professional dual-camera app designed for filmmakers, content creators, and anyone who wants full manual control over their iPhone and iPad camera.

DUAL CAMERA RECORDING
Record from front and back cameras simultaneously. A draggable, resizable picture-in-picture window lets you frame both angles in real-time. Perfect for vlogs, reactions, tutorials, and behind-the-scenes content.

PRO VIDEO FORMATS
Choose the codec and container that fits your workflow:
- H.265 (HEVC) in MOV or MP4
- H.264 (AVC) in MOV or MP4
- Apple ProRes 422
- Apple ProRes 4444

Shoot in resolutions from 720p to 4K at up to 60fps. Dynamic bitrate adapts to your selected codec and resolution for optimal file size and quality.

PROFESSIONAL MONITORING TOOLS
- Waveform Monitor: Real-time luminance display with overexposure detection
- Zebra Overlay: GPU-accelerated animated stripes highlighting overexposed areas
- Focus Peaking: Metal-powered edge detection with red highlight overlay
- Audio Meter: Stereo level bars with peak hold indicators and dB scale
- Rule-of-Thirds Grid: Compose your shots with precision

FULL MANUAL CONTROLS
- ISO / Gain: Switch between auto and manual with a precise slider
- Shutter Speed: From 1/8000s to 1/4s with real-time display
- Exposure Bias: Fine-tune exposure from -3.0 to +3.0 EV
- Zoom: Pinch or use the scroll wheel, from 1x to 10x with haptic feedback
- Tap-to-Focus with visual indicator
- Flash toggle
- Audio gain adjustment
- Video stabilization
- Low-light boost

BUILT-IN VIDEO EDITOR
- Trim your clips with start and end handles
- Crop with an 8-handle overlay and aspect ratio lock
- Scale up to 5x, pan, rotate in 90-degree steps
- Flip horizontal or vertical
- View metadata: resolution, codec, duration, frame rate

LIBRARY
Browse your videos and photos organized by day. Multi-select and delete in bulk. Pull to refresh.

Designed for iPhone.

Terms of Use: https://mercandalli.com/ios/apps/terms-of-use/Duoptra%20Dual%20Camera