Dlux01053.jpg -

Filenames like "dlux" followed by a number are often internal naming conventions used by specific:

Once I have a visual or descriptive context, I can identify the photographer, the brand, or the publication where the full feature appeared. dlux01053.jpg

As unique identifiers for digital assets. Filenames like "dlux" followed by a number are

To track raw files or proofs from a specific shoot. I can identify the photographer

For cataloging product shots (often luxury or "deluxe" items).