Photography can be as simple or complicated as you want to make it. Basically, it’s a compromise. It is a relationship between 3 key elements.
- DEPTH OF FIELD [APERTURE]
- EXPOSURE [SHUTTER SPEED]
- ISO (SENSITIVITY TO LIGTHT)
Which ever one you choose to prioritise in your next photograph, you must compromise with the other 2.
But what does that really mean? Lets explore these elements and understand their relationship to one another. Once you've mastered this relationship, the rest comes easy.
Well as you are beginning to find out everything in photography is related. If you stop down one aperture point from f22 to f16, you are increasing the light to the sensor, which in turn brightens the image, so you need to increase your shutter speed, to reduce the amount of light getting in, to avoid over exposing your image and loosing detail. You want your picture to look the same but with less depth of field.
The best way to explain this is to see it in action.
Here are a series of pictures showing you how to get similar results with different Aperture, Exposure and ISO settings
All the following variables are the same for every photo shown below -
- CAMERA 5 D sr
- LENS 100mm prime
- No FLASH
- No tripod HANDHELD ONLY
- White Balance setting - Tungsten