Tagged Questions
3
votes
1answer
704 views
What is the EV scale?
I have seen an "EV" (exposure value) scale that's sometimes used to express a camera's exposure settings, or scene brightness. How exactly does this scale work?
12
votes
2answers
3k views
What is the difference between luminance and illuminance?
The more I read about this, the more confused I become. Illuminance, as I understand it, measured in lux, is the perceived brightness of light on a surface. It's what you'd measure with an incident ...
18
votes
3answers
5k views
What does TTL mean?
I'm new to photography and I see the term TTL all over the place. What does it mean? And how do I use it to make my pictures better?
