When looking at the histogram in Lightroom vs the the same photo in Photoshop, the histogram look very different. There are a lot more of the clippings in the Photoshop histogram than in the Lightroom histogram?
This is due to the fact that there are different colour spaces in Lightroom and in Photoshop. Most likely the colour space used in Photoshop is sRGB and Lightroom is either Adobe RGB or ProPhoto RGB.
- In the bar graph at the top right of Lightroom, the horizontal axis represents the tones and the vertical axis represents the quantity. The histogram shows 255 different shades from 100% black to 100% white
- When going from one software to another, make sure that you are using the same colour space.