Convert MEF to AVIF Online — Free
Fast, free MEF to AVIF converter. No registration required.
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How to Convert
Upload your .mef file by dragging it into the upload area or clicking to browse.
Choose your output settings. The default settings work great for most files.
Click Convert and download your .avif file when it's ready.
What is MEF?
MEF is Mamiya's RAW image format used in medium-format digital backs like the Mamiya ZD and 645DF. It stores unprocessed sensor data from large CCD and CMOS sensors for maximum image quality.
Format Details
- Full Name
- Mamiya Raw Format
- Extension
- .mef
Key Features
- Mamiya medium format
- RAW quality
- Full sensor data
- Large sensor
What is AVIF?
AVIF is a modern image format based on the AV1 video codec. It offers the best compression available, outperforming both WebP and JPEG.
Format Details
- Full Name
- AV1 Image File Format
- Extension
- .avif
Key Features
- Best compression
- HDR support
- Transparency
- Modern browsers
MEF vs AVIF
| Feature | MEF | AVIF |
|---|---|---|
| Full Name | Mamiya Raw Format | AV1 Image File Format |
| Extension | .mef | .avif |
| Best For | Mamiya medium format | Best compression |