ABSTRACT

The Orion Nebula’s amazing clouds are worthy of revisiting; there are many ways of approaching it, both with conventional color cameras and monochrome models, fitted with narrowband filters. At the same time, it is also a challenging subject to do well on account of its extreme dynamic range. When a RAW file is viewed in a traditional image editor, the image is similarly boosted and when it is converted to an editing format like JPEG, TIFF and PSD, it is often made permanent during the conversion and the image is said to be non-linear. There are two potential causes; the missing gamma correction mentioned earlier and the way in which the image bit-depth is translated into a higher bit-depth file. In terms of improvement, even after the close crop to the square picture, the successive image stretches reveal a top to bottom sky gradient.