MEF is the RAW image format used by Mamiya medium format digital cameras.
OpenEXR is a high dynamic range (HDR) image file format developed by Industrial Light & Magic. It is widely used in visual effects and computer graphics.
FreeFileConvert uses tuned encoding for MEF to EXR conversions, preserving clarity while trimming file size. Finished images open instantly across phones, tablets, desktops, and modern browsers without extra tweaks.
Upload MEF files from desktop or tablet, queue multiple jobs, and let the converter finish autonomously. Return whenever convenient to download synchronized EXR results on any device you rely on.
Process up to 5 files sized 1024 MB per batch without splitting queues manually. Mixed-format uploads convert together, producing consistent EXR images with dependable progress tracking.
MEF files contain high-resolution unprocessed sensor data from Mamiya medium format cameras.
EXR supports multiple channels, 16-bit and 32-bit floating-point pixels, lossless and lossy compression, and metadata storage.
Upload your image file in the MEF format from your device.
Select EXR as the output format and click Convert. Adjust optional settings if needed.
Download the converted image file. Each file stays available for up to 5 downloads.