Understanding Stop And Triangle Exposure In Photography
In photography, the word “stop” is often read and read. No, not that stop, not a stop stop. Stop here is a term in photography. An example of using it like this: “Because the picture looks at the top, I lower one stop”, well like that.
If until this moment, the word stop in photography still makes you confused, please refer to this brief explanation.
Stopping in photography more or less means changing the amount of light received by the sensor / film to blend the photo. Add one stop means brighter 2 times, plus 2 stop means brighter 4 times. Reduce one stop means darker and a half times. One stop is to change the amount of light by multiples of 2.
For you know, the amount of light our sensor receives matches exposure. And up one stop means to increase exposure 2 times. Actions rise or decrease exposure can be done by changing one or a combination of three elements that have triangular exposures: shutter speed, aperture and ISO.
Stop and Shutter Speed
speed sensor. The longer the shutter speed means the more light the sensor receives which means increased exposure. In shutter speed, a single stop is easy to monitor because it is the result of division of number two (by rounding): 1, 1/2, 1/4, 1/8, 1/15, 1/30, 1/60, 1/125, 1/250, 1/500, 1/1000, etc. Moving one stop means jump, eg from 1/30 to 1/125. Moving 2 stops means jump twice.
Stop and ISO
Also easy in ISO, staying 2 times means you go up one stop. ISO 100 to ISO 200 means one stop, 200 to 400 and so on. If asked how many stops from ISO 100 to 1600? well smart, there are 4 stops.
Stop and Aperture
Somewhat more difficult in aperture because numbers are jumping: f / 1, f / 1.4, f / 2, f / 2.8, f / 4, f / 5.6, f / 8, f / 11, f / 16 ff.
What’s a Stop Relationship With All Three?
Let’s say you use the camera’s initial settings like this: 1/125, f / 8 and ISO 100. Because the photographs under exposure (dark) you go up one stop that can be three things: 1/60, f / 8, ISO 100 (only shutter that changes). Or 1/125, f / 5.6 ISO 100 (only the aperture is changed). Or 1/125, f / 8 ISO 200 (only ISO changed). All changes have one stop.