Dscf00090

: The "00090" indicates this was the 90th image captured in a specific folder or since the camera's counter was last reset.

: While the prefix is constant, the extension (not shown) would typically be .JPG or .RAF (Fujifilm's RAW format). Notable appearances of "DSCF00090" DSCF00090

: A photo of a B-24D Liberator model "Flak Alley" is hosted on Britmodeller.com under this filename. : The "00090" indicates this was the 90th

Depending on what you are looking for, this filename appears in several specific online contexts: DSCF00090

: The "DSCF" prefix confirms the image was taken with a Fujifilm camera.

: It often appears in Flickr or SmugMug albums where users haven't renamed their uploads from cameras like the Fujifilm FinePix series.