RAW FormatSince 2006
ARW
Sony Alpha RAW
Extension
.arw
Developer
Sony
Compression
Lossless
Year
2006
What is ARW?
ARW is Sony's proprietary RAW image format used by Sony Alpha series cameras. It captures the raw, unprocessed data directly from the camera sensor, preserving maximum detail and dynamic range for post-processing. ARW files include the full bit depth of the sensor along with camera settings, white balance data, and lens correction profiles.
Key Features
Lossless Compression
Perfect quality preservation
No Transparency
Opaque backgrounds only
No Animation
Static images only
Common Use Cases
Professional Sony Alpha camera photography
Post-processing with Sony sensor data
High dynamic range photography
Astrophotography and low-light shooting
Fine art and landscape photography
Commercial and product photography
Advantages
- Full uncompressed sensor data
- Maximum flexibility in post-processing
- Excellent dynamic range preservation
- Supports high bit depths (12-14 bit)
- Compatible with major RAW editors (Lightroom, Capture One)
- Stores lens correction profiles
Limitations
- Very large file sizes
- Requires RAW processing software
- Proprietary format (Sony only)
- Cannot be viewed in web browsers
- Slow to process and render
- Conversion required for general sharing
Convert ARW Files
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