Linked Questions

149
votes
10answers
53k views

What is the “exposure triangle”?

What is the exposure triangle? How do the "sides" affect my photographs?
126
votes
7answers
16k views

What is “ISO” on a digital camera?

What is "ISO" in general, and how is the scale defined? How does the ISO scale for film speed differ from ISO sensitivity as used in digital cameras? Is lower ISO always better?
31
votes
17answers
16k views

Can I show two sides of a card in one photo?

A form I was looking at asked for customers to submit ONE photo of BOTH sides of their ID card. I spoke with the developers of the form and they are changing it. But then it made me wonder is it ...
11
votes
4answers
16k 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?
4
votes
4answers
3k views

What is “Dragging the Shutter”?

I've heard this term of "dragging the shutter". What does this mean and why would I use it?
10
votes
5answers
324 views

Why is distance absent from the exposure triangle?

With exposure calculations, there are aperture, shutter speed, and ISO. Correspondingly, flash and light meters gives you the aperture (as an f-number) and shutter speed for a given ISO. However, ...
2
votes
3answers
2k views

Why does EV increase as ISO increases?

From what I understand, the lower the EV value, the more exposed (bright) the image is. EV decreases as aperture decreases. More light gets in with lower apertures. EV decreases as shutter speed ...
1
vote
4answers
422 views

Why is ISO counted as part of the exposure triangle?

My understanding of ISO is that it is electronic gain from recorded light in a sensor, ie it doesn't actually change the sensitivity of the sensor (because that is dictated by the quantum efficiency ...
2
votes
1answer
4k views

What is the relationship between film speed and shutter speed?

I'm doing my own research on film photography and planning to do it as a hobby. One question I keep is "what is the relationship between film speed and shutter speed?" Are the two completely ...
1
vote
4answers
150 views

Can exposure parameters be kept high even at high ISO sensitivity, to keep image quality up?

Following is from Film speed Film speed is the measure of a photographic film's sensitivity to light, determined by sensitometry and measured on various numerical scales, the most recent being the ...
0
votes
2answers
131 views

How can I capture motion while maintaining the sharpness of the main subject with an iPhone?

I want to capture motions. I use shutter priority mode with very low speed to get motion blur. But still want to maintain the sharpness of the main subject. I'm using iphone Camera + app. But I couldn'...