Know "wide-angle lens" and "super Wide-angle lens"
In general, the 24mm is already a wide-angle lens (Aps-c is 18mm) under the full picture allows you to incorporate a lot of landscape content into the photo, but there is another, more wide-angle lens that can reach 16mm (full width) or 10mm (APS-C), and these lenses are "super wide-angle" ( ultra-wide)!
For landscape photographers, the wide-angle lens is useful, but the more useful is the "super wide-angle", so what is the effect of the super wide-angle lens?
Canon, Nikon and many other manufacturers also have a professional production of the ultra wide-angle lens.
The magic power of super wide-angle lenses
(a) to accommodate more scenery in a limited space
Wide-angle lenses can be photographed a lot of things, but sometimes in extreme circumstances, such as near-distance shooting tall buildings, or in small areas of the hill shooting, the site does not allow you to back up to shoot more scenery, then a super wide-angle lens will help! Incidentally, if the super wide-angle also failed to take all the pictures, the ultimate " Weapon "is able to shoot the 180º fish glasses!"
Without the super wide-angle lens, you can't shoot such a vast environment on the hill!
(Nikon D810/16-35/f8)
The ultra wide angle lens can accommodate more views and is useful in a narrow environment.
(b) Use exaggerated deformation to increase tension
One of the reasons to use the super wide-angle lens is that it exaggerated the effect of the camera distortion! Using the super wide-angle lens, you can make exaggerated "far small near large" effect, whether in the composition (in the middle of the composition, guide line composition, etc.) or highlight the scenery is also very helpful, this tension is the effect of other lenses can not do!
In the near-pat, the super wide-angle lens can also be used to produce tension photos.
(iii) Substantial increase in space sense
Space sense can let the reader have exposure to the feeling, using the super wide-angle lens can greatly increase the sense of space, especially suitable for shooting prairie, Flower Sea, fields, mountains and other broad environment, this is also other lenses can not copy Ah!
Using a super wide-angle lens can make readers feel comfortable.
(d) Making handheld shooting easier
One of the most useful parts of the super wide-angle lens is its ability to prevent hand tremors, it means that because of the wide angle, even if the camera is slightly oscillating because of the shaking of the hand, the photo will not become blurry and the effect can be reduced, compared to when you use the long Gio, the slightest vibration can make the picture very blurred! Some of the extra wide-angle lenses are built to prevent hand shaking, which is more helpful for handheld photography.
Even in the dark environment using the super wide-angle lens can be hand-held to take a clear picture!
(v) Large aperture can also take deep depth
If your classmates have noticed the teaching articles about "How to shoot a shallow depth of light", then you know that to take a shallow depth of view, "focal length" is one of the most influential elements – the more telephoto the lens the easier it is to take a shallow depth of view, with a very short focus angle (10mm, 16mm, etc.), It can be a bit difficult to get a shallow depth of the light (but it's also possible!).), what is the use of this feature? Just think, in a dark environment (such as a church, a museum), you can not use a flashlight or a tripod, you have to hand-shot, but also want to have all the scenery clearly presented, You can then use the Super wide angle lens with the maximum aperture and the right amount of high ISO to shoot, because the wide-angle focal length is not easy to take a shallow depth of view, even if the maximum aperture (such as f/2.8, F/4) and moderate ISO (such as ISO400), can also make the photo all clear not hand shock!
Even with the large aperture of the F/4, the super wide-angle lens can take a picture of deep depth.
Postscript
For the students who love to shoot the scenery, a high quality of the super wide angle can let you take a more tensile photos, if you can use it, will be a professional landscape photographer an important stepping stone ah!