Dynapik offers a free online tool to change image types - no need to download anything. It's quick and easy to use. You can change your MEF images to PSB format. This tool works for both professionals and casual users. Convert your images to PSB in seconds.
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Mamiya RAW
Raw format for the Mamiya ZD and digital backs.
MEF is the raw image format used by Mamiya digital cameras, most notably the Mamiya ZD medium format DSLR. Before Mamiya was acquired by Phase One, they produced their own digital backs and integrated cameras.
MEF files contain high-resolution medium format sensor data (typically 22MP in the ZD era). They are TIFF-based and store 14-bit or 16-bit data.
Mamiya was a titan of film medium format. Their transition to digital was rocky, and the MEF format is a relic of that transition period before Phase One took over the ecosystem.
Photoshop Big
The 'Large Document Format' for managing gigapixel images.
PSB (Photoshop Big) is an extension of the PSD format designed to break the barriers of the 2GB file size limit and 30,000 pixel dimension limit of standard PSD files. It is structurally almost identical to PSD but uses 64-bit offsets inside the file to support massive files up to 4 Exabytes (theoretically) and 300,000 pixels in width/height.
Internally, a PSB file mirrors the block structure of a PSD (Header, Color Mode, Image Resources, Layer and Mask Info, Image Data). The key difference is the bit-width of length integers; PSB uses 8 bytes (64-bit) where PSD uses 4 bytes (32-bit) for describing file offsets and dimensions.
Introduced in Adobe Photoshop CS (v8.0) in 2003 to support the growing needs of astronomical imaging, billboard printing, and HDR photography.
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