Quote:
Originally Posted by tomsem
I don’t think turning up the front light increases (physical) contrast, so much as makes it easier for eyes to focus. Even if you have good visual acuity, if iris is opened up to max it makes focus more difficult.
I think it would be interesting to measure the physical contrast at various light levels and see if it ‘actually’ changes that much. Of course, in the end, contrast perception is subjective (generated by brain).
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It does indeed not change the physical contrast, but you need the light in a range where you can see the difference. For the human eye white to light gray is easier to distinguish than black to dark gray