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IIQ to FB2 Converter

Fast IIQ to FB2 conversion — browser-based

Drop files here. 1 GB maximum file size or Sign Up
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Shoot-Ready Batching

Upload an entire shoot of IIQ files at once. Batch conversion transforms all your Phase One captures simultaneously.

Fast Despite File Size

IIQ files are among the largest RAW formats. Our infrastructure processes them faster than you might expect from such big files.

Remote Heavy Lifting

Even 150MP IIQ files are processed on our infrastructure. Your device handles nothing — conversion happens entirely in the cloud.

How to convert IIQ to FB2

1

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

2

Choose fb2 or any other format you need as a result (more than 200 formats supported)

3

Let the file convert and you can download your fb2 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
FB2 (FictionBook) is an XML-based ebook format created by Dmitry Gribov in 2004, designed to provide a clean semantic description of a book's content independent of its visual presentation. Unlike page-layout formats, FB2 encodes structure — title, authors, chapters, annotations, genres, epigraphs, poems, footnotes, and binary attachments (typically cover images) — within a single well-formed XML document. This structural approach means reading applications have full control over rendering, allowing the same file to adapt perfectly to a small phone screen or a large e-ink reader. FB2 became enormously popular in Russia and Eastern Europe, serving as the dominant format on major Russian digital libraries and ebook distribution platforms. One significant advantage is metadata richness: the format's schema mandates detailed bibliographic information including author, translator, series position, publication date, and genre classification, making library management and discovery straightforward. The plain-text XML foundation is another strength — FB2 files are human-readable, easy to validate, and simple to transform using standard XML tools like XSLT. The format specification is freely available on GitHub, and a wide ecosystem of readers, editors, and converters supports it across all major platforms, from desktop applications like Calibre to dedicated e-readers with native FB2 rendering.
Developer: Dmitry Gribov
Initial release: 2004

Frequently Asked Questions

Why convert IIQ to FB2?

Phase One IIQ RAW files are too large and specialized for everyday use. Converting to FB2 produces practical files for sharing, editing, or publishing.

What opens FB2?

FBReader, Calibre, CoolReader, and many e-reader apps especially popular in Eastern Europe open FB2.

Why convert a photo to FB2 ebook format?

Converting IIQ to FB2 embeds your image in an e-reader format — useful for creating photo books or visual content for e-ink devices.

Does this work on Mac and Windows?

Yes — the converter runs in any web browser on any operating system. macOS, Windows, Linux, ChromeOS — all work equally well.

Is IIQ to FB2 conversion free?

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