Learning the key features of a Digital Single Lens Reflex is a bit harder, but not a rocket science. Often, everyone escapes from learning a perfect combination of these three primary functions by switching the camera’s mode dial to auto. But applying these functions manually can get you a more efficient and clearer result than an image captured on Auto Mode. These three functions are liberal only in Manual Mode. User can set them at any figure and position where they want to but make sure that exceeding any figure can cause the picture to distort/overexpose or underexpose.

 

Combination of ISO with Aperture

Utilizing ISO discloses a way to brighten the image. Actually it supports the shutter speed by aiding sensitivity to the sensor to prevent the image from being dark. If aperture blades collapse, it increases the figure of aperture value and when they open, aperture value reduces which cause light to pass through the lens to sensor in a massive amount. So, if you lower the amount of ISO, the image gets dark in low light conditions. On the other side, lowering the amount of ISO also affects aperture value. Both of things oppose each other. One thing elevates but the other one lowers.

 

Combination of Aperture with Shutter Speed

Shutter speed and aperture, both have the similarity to perform one same function which is to pass the light through it in order to produce a balanced-exposed picture. Same logic here as above mentioned topic of aperture with ISO. If you plus the figure of Shutter speed then aperture value will automatically be decreased to compensate and maintain balanced-exposure image and if you plus the aperture value, shutter speed will be adjusted by the camera to compensate with aperture value. Just because both the shutter and aperture pass light through them, one of them sacrifices not to close the door for light.


Combination of Shutter Speed with ISO

As we all know, shutter speed has the attribute to freeze motion to capture the image clearly. But in order to capture the motion, we should have some best light conditions. So here’s the mechanism how shutter speed and ISO work together to have a contrasted image. If you elevate the shutter speed, it closes the shutter that causes the light to pass through it in a tiny amount. Just in case, the ISO also increases to cover the image. And if you deplete the shutter speed which causes the light to pass in a good amount, ISO also depletes to not make the image over-expose because ISO turns the sensor’s sensitivity ON to add some exposure to the image.