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

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

image/x-raw-imacon is the MIME type for raw image data captured by Imacon systems.

This format holds unprocessed sensor data. It retains the maximum image detail. Advanced image editors use it to allow fine-tuning of color, brightness, and contrast later in the workflow.

Main use: Storing unaltered image data for professional photography and detailed image analysis.
Key fact: It preserves high-quality image information for post-processing.
Additional use: Suitable for scientific imaging where data fidelity is crucial.

Files that use this MIME type include those with the FFF extension. Specialized viewing or editing software is typically required because the image data is not pre-processed.

For more detailed information on MIME types, visit the IANA Media Types page.

Associated file extensions

.fff

Usage Examples

HTTP Header

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


    Content-Type: image/x-raw-imacon

HTML

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


    <a href="file.dat" type="image/x-raw-imacon">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-imacon');    
      res.end('Content here');    
    }).listen(3000);

Associated file extensions

.fff

FAQs

What is the image/x-raw-imacon MIME type used for?

The image/x-raw-imacon MIME type represents raw image data generated by Imacon scanners (now part of Hasselblad). These files, typically found with the .fff extension, contain unprocessed sensor data that preserves maximum detail for professional photo editing and archiving.

Can web browsers display image/x-raw-imacon files?

No, standard web browsers like Chrome, Firefox, and Safari do not support displaying image/x-raw-imacon files directly. To show these images on a website, they must be converted into web-compatible formats like image/jpeg, image/png, or WebP.

How do I configure Apache to serve .fff files correctly?

To ensure your Apache server sends the correct MIME type for Imacon raw files, add the following line to your .htaccess file or main configuration: AddType image/x-raw-imacon .fff. This tells the server to associate the .fff extension with this specific raw image type.

How do I open a file with the image/x-raw-imacon MIME type?

You need specialized image processing software to view or edit these files. Hasselblad Phocus, Adobe Photoshop, and Adobe Lightroom are commonly used to decode and process the raw data contained in .fff files.

Is image/x-raw-imacon a standard IANA MIME type?

No, the x- prefix indicates that image/x-raw-imacon is a non-standard or experimental type not officially registered with the IANA. While it is widely recognized by imaging software, it is specific to the proprietary format used by Imacon/Hasselblad hardware.

What is the difference between image/x-raw-imacon and image/tiff?

Although Imacon .fff files often use a TIFF-based container structure, image/x-raw-imacon specifically denotes that the file contains proprietary raw sensor data. Unlike a standard image/tiff, which is ready for viewing, raw Imacon files require specific debayering or processing steps before they look correct.

How do I configure Nginx for image/x-raw-imacon?

For Nginx servers, you can register the MIME type in your mime.types file or within a server block. Add the directive: types { image/x-raw-imacon fff; } to ensure the correct Content-Type header is sent to clients downloading these files.

General 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.