I struggled a lot with the first task as I couldn’t seem to find the balence between shutter speed, ISO and F-stop. Eventually I realised I had by shutter speed way too low. I couldn’t get the background to full blur like I wanted too but there is a slight difference in focus between the two pictures especially around the tree.
As a general rule of thumb, if you have good lighting and want some blur in the background of the image use a low F stop, a higher shutter speed and adjust the iso accordingly.
The opposite is done for if you want a focused image: high F-stop, lower shutter speed and adjust iso accordingly.
The F-stop is how much light the camera lets in. If you are taking pictures in a fairly light area such as outside on a sunny day or in a studio with specialist lights, you should have a lower F-stop. It also brings Ito focus what’s directly in front of the camera.
A high F-stop lets lets in more light and focuses on everything in the camera, which makes it ideal for landscapes, but not so great for portraits.
To get the right shot you need a perfect balance of F-stop (how much light the camera lets in), the ISO as the ISO also effects how much light the camera lets in by changing the sensitivity of the camera. A high ISO lets in a lot of light but pictures are bad quality and grainy, a low ISO lets in less light but pictures are crystal clear.
Shutter speed also affects the amount of light the camera lets in, but it is mainly use for taking pictures of fast moving objects.
This is why it is important to take a couple of test shots before you start shooting to get the balance perfect.
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