Here we compare the Fuji Finepix S100FS with the Fuji Finepix F100fd. Images below are all 100% crops from their respective cameras. ISO was set on each the camera. The aperture was fixed on the S100FS but the same could not be done for the F100fd which has no manual controls. Every other setting was left on automatic. All images were taken at the highest resolution possible for the set ISO sensitivity. For the S100FS, ISO 100 to 3200 support a full 11 megapixels, while ISO 6400 is limited to 6 megapixels and ISO 10000 is limited to 3 megapixels. For the F100, ISO 100 to 3200 are crops from 12 megapixels images, while ISO 6400 and 12800 are cropped from 3 megapixels images.

Both cameras produce class-leading results at all ISO settings. A common observation with Fuji Super-CCD-based cameras is that noise starts to show at low ISO values but increased very slowly. In the crops below, we can already see a faint noise-pattern start at ISO 200. Although the higher-resolution F100fd seems to start a smidgeon better from ISO 100 to 400, the S100FS manages to keep details better from ISO 800 and up. Small prints from the Fuji Finepix S100FS produce recognizable subjects all the way to ISO 6400.