ORF to PFM conversion is the process of transforming Olympus RAW image files (ORF) into Portable Float Map files (PFM), which store high-dynamic-range (HDR) image data as floating-point pixel values. This conversion extracts the raw sensor data and remaps or processes it into a PFM representation suitable for scientific imaging, HDR compositing, or advanced image processing workflows.
Related guides
Practical guides to help you choose formats, preserve quality, and avoid common conversion problems.
WebP has quietly become the default image format of the modern web, delivering 25-35% smaller files than JPG and PNG with universal browser support. This 2026 guide covers current adoption stats, browser compatibility, WordPress integration, conversion workflows, and when to choose WebP over AVIF for optimal Core Web Vitals performance.
Read guide →Not sure whether to save your image as PNG or JPG? This detailed comparison covers compression, transparency, file size, web performance, and real-world use cases so you can pick the right format every time — with conversion links when you need to switch.
Read guide →Learn how to convert HEIC to JPG for maximum compatibility. This guide explains what HEIC is, why iPhones use it, the key differences between HEIC and JPG, and walks through every conversion method including online tools, iPhone settings, Windows, and Mac.
Read guide →Drag your .ORF file from your computer or use the browse function.
Confirm .pfm as the selected destination format.
Click "Convert" and download your converted .PFM file once ready.
ORF files typically use the MIME type image/x-olympus-orf and store raw sensor data directly from Olympus cameras. PFM files use the MIME type image/x-portable-floatmap and support 32-bit floating point pixels for high dynamic range images. ORF utilizes proprietary compression codecs, whereas PFM is an open format favored for scientific and professional imaging.
The PFM (.PFM) format is commonly used for image. Understanding its characteristics can be helpful when converting to or from other formats like ORF.
While specific technical details aren't available here, PFM files generally serve the purpose of storing image effectively within their domain.
Our online ORF to PFM converter provides a seamless way to convert your ORF image files into the PFM format without any software installation. Designed for photographers and graphic designers, this tool ensures high-quality output while preserving important image details.
ORF files are raw image files produced by Olympus cameras and contain unprocessed data with high detail. PFM files store high dynamic range images with floating-point pixel data suitable for advanced editing. While ORF is ideal for capturing raw camera data, PFM is preferred for post-processing and HDR workflows.
Keep individual ORF files under 250–500MB for faster single-file processing; very large multi-frame ORF stacks can exceed memory limits during conversion.
Preserve quality by exporting to 32-bit float PFM and avoid intermediate lossy formats; apply minimal in-conversion tonal tweaks if you plan further HDR processing.
For batch conversion, use command-line tools or dedicated batch-capable converters to maintain consistent settings and avoid repetitive manual steps.
Be aware that PFM is typically uncompressed and can be large—plan for ample disk space and consider storing with a lossless archive if needed.
This converter made it easy to prepare my ORF files for editing in PFM format.
James L.
Photographer
Fast and reliable conversion with excellent image quality retention.
Emily R.
Graphic Designer
The best online ORF to PFM converter I have used, very intuitive and efficient.
Mark S.
Photo Editor
Start your free ORF to PFM conversion now.
Drag your file here to to upload.
Up to 250MB
Limitations: PFM does not embed EXIF metadata like ORF, and some viewers/plugins may not support PFM natively, requiring compatible HDR-aware software.