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Why convert MEF to G4?
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 MEF format
RAW — Mamiya MEF RAW
MEF is Mamiya's proprietary RAW format used in medium-format Mamiya digital cameras and backs. Mamiya is known for its use in professional studio and portrait photography, and MEF files deliver the high dynamic range expected of medium-format imaging.
Common uses
- Medium-format studio and portrait photography
- Commercial product and fashion photography
- Landscape photography with high dynamic range
- Fine-art printing at large formats
About the G4 format
G4 — CCITT Group 4 FAX
G4 is the more advanced monochrome fax compression format defined by ITU-T for Group 4 fax machines and TIFF storage. Using Modified Modified READ (MMR) compression, it achieves significantly better compression than G3 and is the standard for TIFF-based document archiving.
Common uses
- High-compression document fax archiving
- TIFF G4 document scanning for records management
- Legal and government document storage
- Converting G4 fax archives to PDF
Related conversions
Other conversions available for MEF and G4 files
Frequently asked questions
How do I convert MEF to G4?
Upload your MEF file above, choose G4 as the output format, then click Convert. Your G4 file is ready to download in seconds — nothing to install, and it works in your browser.
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.
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