ORF to TCR Converter

Easily convert ORF images to TCR format online

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Sharp Results

Your Olympus ORF images are handled carefully to produce clean, high-quality TCR output that honors the original RAW capture.

Browser Compatible

Works in Chrome, Firefox, Safari, Edge, and other modern browsers. Convert your Olympus ORF to TCR from whichever browser you prefer.

Quick Conversion

Get your TCR output fast — optimized servers handle Olympus ORF processing rapidly so you spend less time waiting and more time creating.

How to convert ORF to TCR

1

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

2

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

3

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

About formats

ORF (Olympus RAW Format) is the proprietary RAW image format used by Olympus (now OM Digital Solutions) digital cameras, introduced in 2000 with the E-10 digital SLR and continuing through the entire Micro Four Thirds OM-D and PEN lineups. ORF files capture the unprocessed 12-bit or 14-bit readout from the camera's Four Thirds or Micro Four Thirds Live MOS or CCD sensor, preserving the complete Bayer-pattern mosaic data before any demosaicing, noise reduction, or color processing. The format uses an Olympus-specific container that stores the raw data with lossless compression alongside multiple embedded JPEG previews, extensive EXIF metadata, and Olympus MakerNote tags encoding Art Filter settings, in-body image stabilization parameters, face/eye detection results, and computational photography mode information. ORF has evolved across several generations of Olympus sensors, from the original 4-megapixel Four Thirds CCD to the 20+ megapixel stacked sensors in current OM System bodies, and the format has accommodated these changes while maintaining backward compatibility in processing software. One advantage is the Micro Four Thirds system's depth-of-field characteristics: ORF files from these smaller sensors deliver greater depth of field at equivalent apertures compared to full-frame, a genuine advantage for macro, landscape, and travel photography where sharpness throughout the frame matters. Wide processing support is another strength — ORF files are handled by Adobe Lightroom, Capture One, DxO, Olympus/OM Workspace, dcraw, and RawTherapee.
Developer: Olympus
Initial release: 2000
TCR (Text Compression for Reader) is a compressed plain-text ebook format developed by Barry Childress in the early 1990s for the Psion Series 3 family of palmtop computers. The format was created for Childress's Reader3 application, a text file viewer that needed to fit large books into the Psion's extremely limited storage — typically 128 KB to 2 MB of available memory. TCR uses a dictionary-based compression scheme derived from the earlier ZVR format by Ian Giddings, replacing repeated byte sequences with single-byte tokens that reference a header dictionary. This straightforward approach achieves compression ratios of roughly 40-60% on typical English prose while requiring minimal CPU resources for decompression. The Psion Series 3 ran on a 3.84 MHz NEC V30 processor with no floating-point unit, so TCR's low computational overhead was essential for smooth page-by-page reading. A key advantage is remarkable storage efficiency for its simplicity — users could carry dozens of novels on removable SSD cards that held only a few hundred kilobytes. The format found a dedicated user community among Psion enthusiasts who built libraries of compressed literature for portable reading years before smartphones existed. Though the Psion platform faded from the market in the early 2000s, TCR files can still be opened and converted by modern ebook tools, and the format stands as an early example of purpose-built mobile reading technology from the pre-smartphone era.
Developer: Barry Childress
Initial release: 1993

Frequently Asked Questions

Why convert ORF to TCR?

Ebook formats like TCR let you package Olympus images into digital books. Converting from ORF makes your photos part of a portable reading experience.

What programs open TCR?

You can open TCR in Psion devices, Calibre, and TCR-compatible reading software.

Are ORF and TCR the same quality?

ORF stores raw sensor data while TCR is a processed format. The conversion produces the best quality TCR can support from your original RAW data.

Does this work with all Olympus cameras?

The converter supports ORF from all Olympus camera models — whether you shoot with an entry-level body or a professional flagship.

Is the ORF to TCR conversion free?

You can convert ORF to TCR for free on convertio.tools. Larger or more frequent conversions are available with a subscription plan.

Will my ORF metadata (EXIF) be preserved?

Metadata handling depends on the target format. Where TCR supports it, camera data like shooting parameters and GPS coordinates can be retained.