Image thickness / density - help me figure out what it is In: Cameras Posted October 4 9 hours ago, noone said: I cringe now when i look at some colour photos in old glossy magazines from the 70s and 80s taken with film. Yeah. All of those photos by Richard Avedon, Irving Penn and Victor Skrebneskiphotos were terrible! 18 hours ago, tupp said: Color depth in digital imaging is a product of resolution and bit depth (COLOR DEPTH = RESOLUTION x BIT DEPTH). 9 hours ago, noone said: The best image quality metric that correlates with color depth is color sensitivity, which indicates to what degree of subtlety color nuances can be distinguished from one another (and often means a hit or a miss on a pantone palette). Maximum color sensitivity reports in bits the number of colors that the sensor is able to distinguish. "Color sensitivity" applied to digital imaging just sounds like a misnomer for bit depth. Bit depth is not color depth I have heard "color sensitivity" used in regards to human vision and perception, but I have never heard that term used in imaging. After a quick scan of DXO's explanation, it seems that they have factored-in noise -- apparently, they are using the term "color sensitivity" as a term for the number of bit depth increments that live above the noise. 9 hours ago, noone said: My lowly aging 12mp A7s still fairs very well for portrait colour depth. That's a great camera, but it would have even more color depth if it had more resolution (while keeping bit depth and all else the same). 9 hours ago, scotchtape said: A good image starts with good lighting. That is largely true, but I am not sure if "good" lighting is applicable here. Home movies shot on film with no controlled lighting have the "thickness" that OP seeks, while home movies shot on video usually don't have that thickness. 19 hours ago, tupp said: Color depth in digital imaging is a product of resolution and bit depth (COLOR DEPTH = RESOLUTION x BIT DEPTH). 2 hours ago, kye said: Interesting. Downsampling should give a large advantage in this sense then. No. There is no gain of color depth with down-sampling. The color depth of an image can never be increased unless something artificial is introduced. On the other hand resolution can be traded for bit depth. So, properly down-sampling (sum/average binning adjacent pixels) can increase bit depth with no loss of color depth (and with no increase in color depth). 2 hours ago, kye said: I am also wondering if it might be to do with bad compression artefacts etc. Such artifacts should be avoid, regardless. "Thick" film didn't have them. 2 hours ago, kye said: Converting images to B&W definitely ups the perceived thickness There is no chroma sub-sampling in a B&W image. I really think color depth is the primary imaging property involved in what you seek as "thickness." So, start with no chroma subsampling and with the highest bit depth and resolution. Of course, noise, artifacts and improper exposure/contrast can take away from the apparent "thickness," so those must also be kept to a minimum.