Olympus ORF to PNG Converter

Develop Olympus and OM System OM-D, PEN, and Tough ORF raw photographs into lossless PNG plates.

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Format Comparison & Technical Specifications

SpecificationORFPNG
MIME Type-image/png
Type-raster
Compression-lossless (DEFLATE / LZ77 + Huffman)
Standard Specification-W3C PNG 3rd Edition
Magic Bytes Header-89 50 4E 47 0D 0A 1A 0A

Format Overview & Applications

Olympus and OM System cameras (including the OM-1, OM-5, E-M1X, E-M1 Mark III, PEN-F, and Tough TG-6) record sensor captures in proprietary ORF (Olympus Raw Format) containers. Famous for handheld High Res Shot modes, computational Live ND, and macro focus stacking, ORF captures pack immense detail into compact Micro Four Thirds files. Converting ORF to lossless PNG delivers uncompressed, artifact-free master plates ideal for scientific documentation, macro composite stacking, and graphic prints.

Technical Specifications & Codec Breakdown

The converter navigates Olympus TIFF-derived structures, decodes 12-bit packed raw sensor streams, applies camera color calibration profiles and white balance coefficients, and generates a bit-perfect lossless PNG graphic.

OS & Browser Compatibility

Compatible with macOS Preview, Windows Photos, Linux GIMP, Photoshop, Figma, DaVinci Resolve, and all modern browsers.

Useful info

When shooting 50 MP or 80 MP handheld High Res Shot images on the OM-1, export to PNG to retain sensor-shift micro-detail without JPEG compression loss.

Format Comparison & Technical Specifications

A 22 MB Olympus OM-D E-M1 III ORF raw file converts into an uncompressed 32 MB lossless PNG master in approximately 270 ms.

Frequently Asked Questions

Are OM System and legacy Olympus ORF files both supported?

Yes. All cameras branded Olympus and modern OM System cameras are fully supported.

Does PNG export preserve macro photo stacking details?

Yes. PNG eliminates DCT compression noise, preserving delicate insect wings, floral hairs, and mineral textures.

Does the conversion process require server uploads?

No. All conversion computations happen entirely inside your web browser via WebAssembly.