What is IIQ?

Phase One IIQ is a professional medium-format raw format used by Phase One digital backs, delivering exceptional image quality for commercial photography.

What is ORF?

Olympus Raw Format (ORF) contains raw sensor data from Olympus OM-D, PEN, and other Olympus digital cameras.

When Should You Use IIQ vs ORF?

IIQ vs ORF: Key Differences

• •IIQ uses lossless compression while ORF uses lossless compression — both take the same approach to file size management.
• •Since both IIQ and ORF use lossless compression, the quality characteristics are comparable — differences in file size come down to how efficiently each format implements compression.
• •Alpha channel support: ORF lacks transparency support.
• •IIQ files are typically 50-150MB per image from medium-format backs while ORF files range 15-40MB per photo
• •Primary audience: IIQ is built for professional studio photography, digital back capture scenarios, while ORF focuses on olympus camera raw processing — pick the format that matches your output requirement.

Advantages of IIQ

• ✓At its core, IIQ relies on lossless encoding — a design choice that makes it perfect for Professional studio photography, digital back capture.
• ✓You won't run into compatibility issues with IIQ — it's a universal standard across platforms.
• ✓File size management with IIQ: larger files guaranteed to match the original exactly.
• ✓Every major application in the Professional studio photography, digital back capture space supports IIQ natively.

Advantages of ORF

• ✓ORF applies lossless compression specifically calibrated for Olympus camera raw processing.
• ✓ORF enjoys broad native support across operating systems, browsers, and creative tools alike.
• ✓ORF guarantees every bit of the original data survives — no approximations, no shortcuts.
• ✓You will find ORF support built into virtually every tool that handles Olympus camera raw processing — no plugins or converters needed.

Common Use Cases for IIQ to ORF Conversion

• Mobile app UI assets
• Product photography for marketplaces
• Digital art portfolios
• Brochure and flyer design
• Newsletter graphics
• Video thumbnail creation

Industry Applications

Best Practices for IIQ to ORF Conversion

• →When converting IIQ to ORF, check whether ORF supports transparency — if not, your transparent areas will be filled with a solid color
• →Use ORF for maximum quality archival and IIQ for lossless workflows
• →Optimize images for web to reduce page load times — tools like our converter let you adjust quality settings before conversion
• →Maintain original aspect ratio to avoid distortion during conversion
• →Always keep a backup of your original files before converting
• →Choose the appropriate quality settings for your specific use case

Related Article

Troubleshooting IIQ to ORF Conversion

• !ORF shows visible compression artifacts → lower the compression level or switch to a lossless variant
• !The converted ORF image looks washed out → the source IIQ likely uses a wider color space than ORF supports
• !ORF file is much larger than expected → check if the conversion preserved an unnecessarily high resolution
• !Text in the converted ORF looks fuzzy → text-heavy images benefit from higher quality settings or a different output format

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