IIQ to RB Converter

Convert IIQ to RB online — fast and simple

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Studio-Grade Security

IIQ uploads from Phase One cameras are deleted immediately after conversion. Output files are removed within 24 hours automatically.

Professional Made Simple

Upload IIQ, choose your delivery format, download. Turning medium format RAW captures into client-ready files takes three steps.

Maximum Detail Retention

IIQ RAW files hold massive amounts of image data. The converter extracts every pixel of detail from your Phase One captures.

How to convert IIQ to RB

1

Select files from Computer, Google Drive, Dropbox, URL or by dragging it on the page.

2

Choose rb or any other format you need as a result (more than 200 formats supported)

3

Let the file convert and you can download your rb file right afterwards

About formats

IIQ (Intelligent Image Quality) is the proprietary RAW format developed by Phase One, a Danish manufacturer of medium-format digital camera systems and backs, introduced in 2008 with the P65+ digital back. IIQ files capture the unprocessed readout from Phase One's large-area CCD and CMOS sensors — ranging from 40 to 151 megapixels in current systems — at 16 bits per channel, preserving the full dynamic range, color depth, and spatial resolution of the sensor. The format comes in two variants: IIQ Large (IIQ L), which uses lossless compression for zero-quality-loss archival, and IIQ Small (IIQ S), which applies visually lossless compression to reduce file sizes by approximately 40-60% with negligible quality impact. Phase One's sensor calibration data, including per-pixel defect maps, fixed-pattern noise profiles, and factory color calibration, is embedded in the IIQ file, enabling precise correction during RAW development. One advantage is sheer resolving power and tonal depth: IIQ files from Phase One's flagship systems deliver the highest pixel counts and widest dynamic range available in commercial photography, making them the standard format for museum digitization, fine art reproduction, aerial surveying, and commercial advertising where maximum detail is non-negotiable. Tight integration with Capture One is another key strength — Phase One develops both the camera hardware and the RAW processing software, ensuring that IIQ files receive optimized demosaicing, color rendering, and lens correction tuned to each specific camera-lens combination.
Developer: Phase One
Initial release: 2008
RB is the native ebook format of the Rocket eBook, one of the first commercially available dedicated e-reading devices, developed by NuvoMedia and released in October 1998. Founded by Martin Eberhard and Marc Tarpenning — who later co-founded Tesla Motors — NuvoMedia designed the Rocket eBook as a handheld device with a reflective LCD screen, capable of storing approximately ten books in its internal memory. The RB format packages HTML-based content along with embedded images, metadata, and a table of contents into a single binary container optimized for the device's limited hardware. Content was purchased and downloaded through NuvoMedia's RocketLibrarian desktop software. A notable advantage of the format was its early support for bookmarking, annotation, dictionary lookups, and adjustable font sizing — features now standard on modern e-readers but revolutionary in the late 1990s. The Rocket eBook demonstrated viable commercial demand for dedicated reading devices, paving the way for subsequent platforms from Sony, Amazon, and others. NuvoMedia was acquired by Gemstar-TV Guide International in 2000, which discontinued the device line in 2003. While RB files are largely a historical curiosity today, they can be converted to modern formats using ebook management tools, and the format remains significant as a pioneering chapter in the evolution of digital reading.
Developer: NuvoMedia
Initial release: 1998

Frequently Asked Questions

Why convert IIQ to RB?

IIQ files from Phase One medium format cameras can reach 150MP and need conversion to practical formats like RB for client delivery and sharing.

What opens RB?

Legacy RocketBook devices and Calibre with plugin support open RB format ebooks.

Why convert a photo to RB ebook format?

Converting IIQ to RB embeds your image in an e-reader format — useful for creating photo books or visual content for e-ink devices.

Is IIQ to RB conversion fast?

Most IIQ to RB conversions complete in seconds. Upload your image, and the result is ready almost immediately for download.

Is IIQ to RB conversion free?

Standard conversions are available at no cost. Premium plans add faster processing and higher limits for professional-volume work.