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Why convert ERF to RGBO?
Fast
Your file is converted in under 30 seconds in our cloud.
Secure
Files are automatically deleted after 1 hour.
Quality preserved
Maximum quality preserved during conversion.
About the ERF format
RAW — Epson ERF RAW
ERF is Epson's proprietary RAW image format used in its R-D1 digital rangefinder cameras. The Epson R-D1 was the world's first digital rangefinder, and ERF files capture its full CCD sensor data for professional post-processing.
Common uses
- Epson R-D1 rangefinder photography
- Street and documentary photography archives
- Collector and vintage digital camera workflows
- Converting rangefinder RAW files to modern formats
About the RGBO format
RGBO — Raw RGB with Opacity
RGBO is a variant of the raw RGBA format used by ImageMagick where the fourth channel represents opacity rather than alpha, with inverted semantics (0 = fully transparent, like an alpha channel). It is used internally in ImageMagick for specific color operations.
Common uses
- ImageMagick internal color processing
- Opacity-based compositing workflows
- Intermediate format in image processing pipelines
- Custom color channel manipulation
Related conversions
Other conversions available for ERF and RGBO files
Frequently asked questions
Is the conversion free?
Yes, basic conversion is completely free. For large volumes, check out our paid plans.
What is the maximum file size?
Free accounts can convert files up to 25 MB. Pro accounts up to 100 MB.
How long are my files kept?
Files are automatically deleted after 1 hour on the free plan, 24 hours on Pro.
What formats are supported?
We support over 200 source and target formats. See our complete formats page.