The D5000’s normal ISO range extends from ISO 200 to 3200, allowing for superior shooting in low-light conditions. Additionally, the D5000’s ISO range can be expanded to a Lo 1 setting of ISO 100 or a Hi 1 setting of ISO 6400, furthering the opportunities for previously impossible shots.

Images below were taken from a production Nikon D5000 with AF-S DX NIKKOR 18-55mm F3.5-5.6 G VR.

ISO samples below ranges from ISO100 to ISO6400 accompanied with 100% cropped sample. Autofocus was set to centre point and noise reduction is set to standard mode. Lens used was AF-S DX NIKKOR 18-55mm F3.5-5.6 G VR. All shots were taken using Program mode with auto white balance at focal length of 55mm.

1/60 second f/11 55mm ISO 6400 AF-S DX NIKKOR 18-55mm F3.5-5.6 G VR

Below are sample images of ISO100, ISO200, ISO400, ISO800, ISO1600, ISO3200 and ISO6400 at 100% Crop:

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