why do photos need color correction prior to printing ?

Started Jan 24, 2013 | Questions thread
technoid Senior Member • Posts: 2,014
Re: why do photos need color correction prior to printing ?

Hugowolf wrote:

It is just use. You are used to seeing images projected onto a computer screen or phone screen. It is a very different medium than print - transmissive rather than reflective.

Modern monitors are much brighter and run at much higher contrast levels than they did even just a few years ago. They are great for viewing, but set at their default 'brightness' and contrast, they are terrible for editing images for print. Mac monitors, in particular, are well know for their over-the-top default luminance levels.

You can not turn up the brightness of a print. A print is limited by the whiteness of the underlying paper.

Read more books. Visit more fine art galleries, photo exhibitions, and museums.

Brian A

Actually, if you put together a print illumination system that just focused 6.5k Kelvin light at 350 Lux only on the print, a print using Relative Colorimetry would match quite closely a calibrated sRGB where the emitted luminance of white (255,255,255) was 100 cd/m^2 (aka: 100 nits).

It's not that one is emissive and one reflective. It's that it's damn hard to illuminate a print, and only the print, with the relatively bright and bluish light required to produce the same level of image brightness. Also, many monitors now sport upwards of 300 nits of luminance. Matching that level is even harder.

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