X3F to FITS Converter

Convert X3F to FITS online quickly and easily. Just upload your file, convert it, and download the FITS in seconds.

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What is X3F ?

X3F is a raw image file format used primarily by Sigma cameras for storing high-quality photographs. This format retains unprocessed image data, allowing photographers greater flexibility in post-processing.

X3F format  ▶

What is FITS ?

FITS, or Flexible Image Transport System, is a digital file format widely used in astronomy for storing, transmitting, and processing scientific data, particularly images and tables. It is designed to accommodate various data types and structures, making it a versatile choice for researchers in the field.

FITS format  ▶

How to Convert X3F to FITS in Just a Few Steps

  1. Upload your X3F file
    Drag and drop your X3F file, click 'Select Files' to upload from your device, or import directly from Dropbox, Google Drive, OneDrive, or paste a URL.
  2. Choose FITS as output format
    The converter is preset to FITS, but you can select any other image format before converting.
  3. Adjust settings (optional)
    If you like, tweak output options such as resolution, quality, or compression before converting.
  4. Convert the file
    Click the 'Convert' button. The conversion takes only a few seconds.
  5. Download your converted file
    Download the converted file to your device, or save it directly to Google Drive, Dropbox, or OneDrive.

Start converting X3F to FITS now — it’s fast, safe, and completely online!