Noise Reduction for Long Exposure Shooting

The E-1 provides the professional with all the tools needed to get the best image quality every time, including Noise Reduction and Noise Filter.

Shooting at long exposures over 2 seconds, or high ISO speeds, can often show "Fixed Pattern Noise". The Noise Reduction feature lets the user cancel this phenomenon using a black frame exposure subtraction process.

Immediately following the capture of the original exposure, a black frame exposure is taken for the same exposure time, doubling the exposure time. The first image is then compared to the black frame to cancel any Fixed Pattern Noise that may be present in the original photograph.

Random Pattern Noise is often found in images with large solid colour areas like sky, coloured walls or skin tones of a picture. Random Pattern Noise is minimised with the Noise Filter mode of the E-1. By reviewing an image part by part, Noise Filter actively adjusts the phenomenon so it's less apparent while adding only a slight increase to the image processing time.