What Is A Wide-Angle Lens?
A wide-angle lens, or short focal length lens, has the ability to capture an image of greater size than a standard focal length. This type of lens aims to replicate what the human eye can see in its natural state.
A wide-angle lens is often used in landscape photography and event coverage because it allows the photographer to capture everything in a single photo without cutting portions off, as might occur with a telephoto lens.
Working of wide-angle lens
How wide-angle lenses affect the depth of field in an image
Depth of field refers to that area in an image that appears sharp. With a wide-angle lens, you’ll get more depth of field for any given aperture setting compared with a standard or telephoto focal length lens.
If you need everything from near to infinity to be sharp, use as small a f/number as possible (f/22 is the smallest aperture now available on DSLRs).
A wide-angle lens will also give you a greater depth of field than the human eye can see. Therefore, if your subject is at any distance from you and not located near the very front or back of your image, it’ll be sharp even though our eyes might tell us otherwise.
This photo of Edinburgh Castle was taken with a 24mm lens. The large aperture combined with the wide-angle focal length has given me enough depth of field to ensure that almost everything is in focus.
The same scene, captured at f/11 instead, would have rendered only the castle itself sharp and anything more than an inch or so away from it out of focus.
This is why, when photographing landscapes with a wide-angle lens, you’ll often see the aperture set to f/11 or more.
Why would you want to use a wide-angle lens
As a wide-angle lens can capture an image of greater size than a standard focal length, it is often used for landscape photography and event coverage.
This type of lens allows photographers to fit everything into one photo without having to cut off some parts as would otherwise happen with a telephoto lens.
A wide-angle will also give you more depth of field than your eye can see, making it possible to get everything from near to infinity in focus.
If you need everything sharp, use as small a f/number as possible (f/22 is the smallest aperture now available on DSLRs).
If your subject is at any distance from you and not located near the very front or back of your image, it will be sharp even though our eyes tell us otherwise.
A wide-angle lens is also useful for panoramic photos as they can fit more into a single frame than telephoto lenses (which are great for compression).
A wide-angle of view (larger than 90 degrees) will make buildings appear to converge at the top, creating a sense of height.
When not to use a wide-angle lens
Some drawbacks of a wide-angle lens:
A wide-angle lens is more difficult to hold steady than a telephoto of the same length and aperture because it has shorter focal lengths and, therefore, smaller maximum aperture openings (for any given length, the f/ratio of long lenses will be smaller than with short lenses).
A wide-angle is also not great for close-up work because of the distortion effect. When you get too close to your subject, it will unnaturally distort them.
A wide-angle will also give you a much greater depth of field that your eye can see, making it possible to get everything from near to infinity in focus.
This is often not ideal for portraiture work, where you want your subject to be more isolated from the background.
Things to consider when buying a wide-angle lens
We should consider the following things when buying a new one:
Some wides are much lighter than others. For example, if you are hiking, you might want to have a lighter lens.
Some lenses are more expensive than others, but that doesn’t necessarily mean they’re better! The price of the widest angle lens is very dependent on its features and quality.
Wide lenses are very stable. They will not shake even if you move them around, while others might be less steady and more difficult to work with on the go.
make sure your lens is covered by warranty in case of any issues that may arise during use! You don’t want it breaking down when out in the field, so make sure you choose one with a good warranty.
Conclusion about what is a wide-angle lens
In conclusion, a wide-angle lens can capture an image of greater size than would normally be possible with a standard focal length lens.
They are often used for landscape photography and event coverage as they allow photographers to fit everything into one photo without having to cut off some parts or get too close that it begins distorting your subject.
What is the purpose of the wide-angle lens?
The wide-angle lens allows photographers to get in close to their subject without omitting important elements of the background scene so that viewers feel as though they see the scene firsthand instead of through a photograph.
What is considered a wide-angle lens?
The angle of view covered by a wide-angle lens falls between 64° and 84°, so a 35–24mm lens in a 35mm film would represent this angle of view.
Do wide-angle lenses make you look fat?
In contrast, short focal lengths on narrow-angle lenses create the illusion of both wider and taller people in the centre of the picture. It’s possible for these wide lenses to make the people on the outside of a group shot look fatter due to the flipped image.