The images found on Skyfactory.org website can generally be obtained in high-resolution and are suitable for any purpose. Typical applications are reproduction in books, magazines and periodicals, use for public exhibitions in planetariums, museums, talks, etc.

Hi-res files are provided in uncompressed TIFF format or may be converted into your favorite format. Files will be sized to your resolution and dimension requirements and are provided on CD/DVD-ROM or made available for download through the website.

If you intend to use the images for commercial purposes, you must obtain my written permission in advance.

I am happy to help non-profit organizations who like to use my images, providing images for free or at very special conditions.

The low-res version of the images  available on this website can be used in Internet websites; please, always include a link to my home page and give credit to "Davide De Martin - http://www.skyfactory.org". I am also glad to receive by email a link to your web page where the image appears.