Paris

by Jon

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1
vote
3answers
236 views

How does the spectral sensitivity of different sensors affect the resulting photo?

I am learning about light and color formation but I don't understand how does the sensitivity affects an image. Take for instance the different sensitivities for two "cameras" for each RGB channel ...
7
votes
1answer
316 views

What is Colour Rendering Index (CRI)?

From this answer on white balancing a LED light I understood there's a thing called Colour Rendering Index (CRI). I understand it has something to do with how well lights reproduce the sun's colour ...
1
vote
4answers
207 views

Why are these lights all different colours and how can I correct them?

I occasionally take panoramic city photos and I've noticed that certain sections of the cities have a lot of different coloured lights. What causes these different lights? Some of these appear to be ...
8
votes
2answers
883 views

Why are sensors less sensitive to blue light?

This is a followup question to Why is the blue channel the noisiest?. The simple answer to that question is that sensors are less sensitive to blue, and therefore require more amplification, which ...