In digital photography, exposing to the right (ETTR) is the technique of adjusting the exposure of an image as high as possible at base ISO (without causing unwanted saturation) to collect the maximum amount of light and thus get the optimum performance out of the digital image sensor. The name derives from the resulting image histogram which, according to this technique, should be placed close to the right of its display. Advantages include greater tonal range in dark areas, greater signal-to-noise ratio (SNR), fuller use of the colour gamut and greater latitude during post-production. The direction of the relative adjustment to the camera's meter reading depends on the dynamic range (or contrast ratio) of the scene. Typically, with low-contrast scenes, an increase in exposure over that indicated by the camera's meter will be required. When attempting a single-exposure of a high dynamic-range scene, a reduction in exposure from the meter's reading may be needed. In the final analysis, however, the camera's meter is irrelevant to ETTR since the ETTR exposure is established, not by a meter reading, but by the camera's exposure indicators, the histogram and/or the highlight-clipping indicators (blinkies/zebras). ETTR images requiring increased exposure may appear to be overexposed (too bright) when taken and must be correctly processed (normalized) to produce a photograph as envisaged. Care must be taken to avoid clipping within any colour channel, other than acceptable areas such as specular highlights. The principle is also applied in film photography in order to maximize the negative's latitude and density and achieve richer blacks when the image is printed slightly down. With high-dynamic-range scenes With the advancement of digital image sensors, the same ETTR technique may be applicable to scenes with a relatively high dynamic range (HDR) (high contrast within both bright highlights and dark shades in harshly lit scenes), previously in the domain of HDR techniques involving multiple exposures. , the better of the recent photographic imaging sensors of the 35 mm "full-frame" format can accommodate up to about 14 stops of engineering dynamic range (DR) or 11.5 stops of useful photographic DR in the raw shooting mode. A complication to using ETTR with higher DR is the fact that the vast majority of photographic cameras can only display a histogram produced by its JPG processing engine. In-camera JPG engines tend to have a narrowed DR than the sensor and does not faithfully represent the underlying raw