What is MIME type "image/x-raw-phaseone"?

A MIME type is a string that tells browsers and other tools how to handle a particular kind of file.

image/x-raw-phaseone is a MIME type for raw image files created by Phase One cameras. These files store sensor data in its original form with minimal processing.

They are designed for high-end photography and professional workflows. Raw files offer greater control during editing and preserve image details and dynamic range.

Used in professional photography for maximum detail preservation
Ideal for digital asset management and archival of original sensor data
Works with specialized editing software, like Capture One, that supports raw image processing

Common file formats include CAP, IIQ, and CAPTURE.

For further technical details on MIME types, visit IANA Media Types.

Associated file extensions

.cap, .iiq, .capture

Usage Examples

HTTP Header

When serving content with this MIME type, set the Content-Type header:


    Content-Type: image/x-raw-phaseone

HTML

In HTML, you can specify the MIME type in various elements:


    <a href="file.dat" type="image/x-raw-phaseone">Download file</a>

Server-side (Node.js)

Setting the Content-Type header in Node.js:


    const http = require('http');
    
    http.createServer((req, res) => {
      res.setHeader('Content-Type', 'image/x-raw-phaseone');
      res.end('Content here');
    }).listen(3000);

Associated file extensions

.cap, .iiq, .capture

FAQ

What is a MIME type?

A MIME (Multipurpose Internet Mail Extensions) type is a standard that indicates the nature and format of a document, file, or assortment of bytes. MIME types are defined and standardized in IETF's RFC 6838.

MIME types are important because they help browsers and servers understand how to process a file. When a browser receives a file from a server, it uses the MIME type to determine how to display or handle the content, whether it's an image to display, a PDF to open in a viewer, or a video to play.

MIME types consist of a type and a subtype, separated by a slash (e.g., text/html, image/jpeg, application/pdf). Some MIME types also include optional parameters.

How do I find the MIME type for a file?

You can check the file extension or use a file identification tool such as file --mime-type on the command line. Many programming languages also provide libraries to detect MIME types.

Why are multiple MIME types listed for one extension?

Different applications and historical conventions may use alternative MIME identifiers for the same kind of file. Showing them all helps ensure compatibility across systems.