Photographic equipment is offered in various modifications, and the presence of a high-quality lens directly affects the shooting result. Thanks to optics, you can get a clear and bright image. Fisheye lenses are often used by professional photographers, with their help you can get unique pictures. There are several varieties of such optics, the technical characteristics of which are somewhat different. To choose the right lens, you need to familiarize yourself with its features in advance.
What is it and what is it for?
The fisheye lens refers to short-focus optics, which have natural distortion . In the photo, the straight lines are strongly distorted, which is the main distinguishing feature of this element. To increase the viewing angle, manufacturers can install three negative menisci. This scheme is used in cameras of different manufacturers: both domestic and foreign.
On ultra-wide-angle formats, you can place more information, which is impossible to do in the case of standard optics. Also , the fisheye is suitable for shooting in a small room to create a wide plan. This allows you to push the limits of the photographer and get stunning panoramic shots even at close range.
This equipment is often used in applied photography, allowing the photographer to show a creative intent.
With the fisheye effect, you can make the original image if you correctly configure the equipment. However, due to the use of such optics, the perspective is very distorted. Vignetting may appear on some pictures, and the lighting may change. Often this occurs for technical reasons, but professional photographers can use this technique for an artistic effect. The minus is the large diameter of the optics, which causes some inconvenience.
The fisheye depth of field is large, so each object in the picture will be in focus, which means that you can create a frame with an interesting plot. This should be considered if objects in the foreground need to be highlighted and the background blurred.
There are two types of such optics: diagonal and circular.
Circular optics has a field of view that is 180 degrees in any direction. The frame will not be completely filled with the image, a black frame will form on the sides. Such lenses are used infrequently only if the photographer has a special idea in order to get vignetting.
As for the diagonal lens, it covers the same angle of view, but only diagonally. The vertical and horizontal form less than 180 degrees. The frame is a rectangle without black edges. Such lenses are considered more practical, photographers use them when shooting nature, interiors and architecture.
The circular fisheye is mounted on film and digital cameras with a 35 mm sensor. True lenses that give this effect are considered lenses that capture 180 degrees in the widest places. Some manufacturers have optical models whose coverage reaches 220 degrees.
However, it is worth noting that such lenses are heavy and large, therefore they are used in rare cases and only by professional photographers.
If we talk about models of such optics, then we can mention the Canon EF-S. It has a built-in stabilizer, and the focus is automatic and does not make noise. The sharpness of the lens is excellent, even if you shoot moving objects or in conditions where there is not enough light.
A focal length of 16 mm is offered in the Zenit Zenitar C model with manual adjustment. Samyang 14mm is a manual lens. The convex lens is protected from mechanical damage and glare. The special UMC coating allows you to suppress glare with glare. Sharpness is manually adjusted, as there is no automation in this model.
To choose a lens for the camera, you need to consider a number of factors.
Immediately pay attention to the compatibility of the lens with the size of the camera’s sensor. In full-frame devices, you cannot use the lens without cropping the picture.
The type of optics plays an important role, so first you need to decide what effect you want to get when shooting.
The viewing angle is the main characteristic. The wider it is, the less time and frames it will take to create a panoramic picture. It is recommended that you study the instructions for the lens to determine whether it is suitable for the camera you are using in terms of parameters.
Instruction for use
For the original shooting of celestial objects, you can build a composition by positioning the horizon in the center. Using an implicit line will be relevant when photographing landscapes. If the horizon in the landscape frame is not clearly visible, you should not worry, since the bend will be hidden by hills or mountains.
It is not always necessary to build on the horizon . The camera can also be directed downward, focusing on a beautiful corner of nature. Complete freedom of creativity manifests itself in foggy weather, when long-range plans are not visible at all. In such cases, you can not worry about the curved line, shooting in any direction. When shooting curved tree trunks, it is not necessary to try to straighten them: such trees can be used as a frame for the landscape.
A win-win fisheye application is the close proximity of a beautiful foreground. The small minimum distance that is present with such optics allows macro photography. It is convenient to photograph spherical panoramas with a wide viewing angle. It is suitable for shooting nature and architecture. As for portrait shots, they will come out rather comic, but you can experiment.
Professionals believe that the fisheye lens is the best lens for underwater shooting. It is under such conditions that the distortion becomes not so noticeable, since the process takes place in the water column, where there is no straight line and horizon.
Do not shoot at a long distance, so the frame will be inexpressive. It’s better to get close to the object so that the picture is shaped the way our eye sees it.
Now consider the correct sighting technique.
- The first step is to press the viewfinder to see the full frame.
- Make sure that the subject is close, but you can not take the camera from your face to see the desired picture.
- It is important to consider the frame along the diagonal so that it is completely filled. A common mistake photographers make is inattention to the periphery of the image. Therefore, it is extremely important to examine everything so that there is nothing extraneous in the frame.
The following is a video review of the Zenitar 3.5 / 8mm lens with a constant focal length of the circular fisheye type.