Work with ISO, speed and aperture

Work with ISO, speed and aperture

The exposition represents the quantity of light that is caught on the camera's sensor. By exposing a a picture properly allow you to get all the details of it, that we want to get. When a picture is lighter than it should be, it is called over exposed. When is darker, it is defined as under exposed.  In those cases you have to work manually to get the exposition that you want, trying to change the iso, and the aperture shutter speed.

During a lesson we went out in Nottingham in different places with different light conditions to understand how you work to get the right exposition.

In this square, firstly, we started to think about how to set our camera, thinking about the natural light in front of us. We decided to set F8 1/125 and ISO 400 because it was a sunny day with just a few clouds.

The first shots were alright, but as soon as we started to include the sky in the picture we started to have over exposition because the sky was so much lighter than everything else, but we only needed to modify the shutter speed, without editing anything else. 

Afterwards we went to this church where the light conditions were completely different compared to before, it was dark and the only light source was coming from the glass window.

I only needed to edit the ISO taking it to the maximum and the aperture to f.5.6, but once we decided to include only the glass window with all its details, we changed the aperture to f.9. 
In this location, it wasn't easy to decide the camera's settings, because the sky in front of us was very light and it was very dark behind us, and beside us the wall was reflecting the light. 
We started with f.8 1/125 and iso 400, but with this settings the picture was over exposed, so we make it better by raising the aperture at f.11.