Camera Techniques : APERTURE … Shallow Depth Of Field

EXAMPLE:

The aperture is the size of the opening of the lens. The smaller the number size, the shallower the depth of field is. As you can see in the example photo above, the main focus of the photo is the daisy at the front, whilst the ones behind it are blurry and unfocused. If you set the aperture ring on the lens to a really low number, such as 1.8, you get results like this. Beware that not all cameras go that low, some may only go down to about 3.5, but the results will be the same. This makes the size of the opening of the lens bigger, therefore being able to focus on just one point in the picture. This can often get confusing but if you remember that the smaller the number is, the bigger the opening of the lens is, thus making the depth of field shallower.

 

Image taken from: https://www.google.co.uk/search?q=google+images&client=firefox-a&hs=GBM&rls=org.mozilla:en-US:official&channel=fflb&source=lnms&tbm=isch&sa=X&ei=Y81KUv61HsO80QW-s4GoDQ&ved=0CAkQ_AUoAQ&biw=1280&bih=824&dpr=1#channel=fflb&q=shallow+depth+of+field&rls=org.mozilla:en-US%3Aofficial&tbm=isch&facrc=_&imgdii=_&imgrc=xlQnDtNtWQZqMM%3A%3ByYmJTKRFKQ_MjM%3Bhttp%253A%252F%252F4.bp.blogspot.com%252F-zudh8CJ8ltI%252FUFdTXue2SbI%252FAAAAAAAAASg%252FHS0_d9NsErs%252Fs1600%252FShort%252BDepth%252Bof%252BField%252B1.jpg%3Bhttp%253A%252F%252Fgabyytejada.blogspot.com%252F2012%252F09%252Factivity-4-depth-of-field.html%3B300%3B414