Features and effects of wide-angle lens:
A wide-angle lens is a photographic lens with a focal length shorter than a standard lens, an angle of view larger than a standard lens, a focal length longer than a fisheye lens, and a smaller angle of view than a fisheye lens. Wide-angle lenses are divided into two types: ordinary wide-angle lenses and ultra-wide-angle lenses. 135The focal length of an ordinary wide-angle lens of a camera is generally38-24Mm, the viewing angle is60-84Degrees; the focal length of an ultra-wide-angle lens is generally20-13Millimeter viewing angle is94-118degree. Because the wide-angle lens has a short focal length and a large angle of view, it can shoot the largest area of ??scenery within a short shooting distance, so it is widely used for shooting large scene scenery. In photography creation, using a wide-angle lens to shoot can obtain the following effects of course:
One.It can increase the spatial depth of photographic writing;
two.The long depth of field can ensure that the front and back scenes of the subject can be clearly displayed on paper, so most modern pocket-type automatic cameras(Fool machine)use38-25Mm ordinary wide-angle lens;
three.The lens has a large cover area and a wide shooting range;
four.The scene shot outside the same shooting distance is smaller than the scene shot with a standard lens.
Fives.It is the defect that is prone to perspective distortion and influence distortion in the picture. The shorter the focal length of the lens and the closer the shooting distance, the more obvious this defect. Therefore, it is not suitable to be close to0.6M so as not to produce perspective distortion. If you use an ordinary wide-angle lens to take a standard portrait photo for ID, it’s best to take a half-waist or knee-length portrait, and when you use an ultra-wide-angle lens to take a full-length portrait of such a person. Then crop during the magnification process to obtain a standard portrait photo, so that perspective distortion can be avoided. Of course, sometimes when shooting portraits, in order to reduce certain defects of the subject''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''s face, this perspective distortion can also be used consciously. If the subject has a narrow forehead and a wide jaw, a slightly higher overhead angle can be used to take the picture, which can eliminate its defects. Conversely, using a low-angle upward shot can make the characters appear slender on the screen and increase their beauty. When shooting with a wide-angle lens or teleconverter, sometimes perspective distortion and edge distortion will occur. This distortion is mainly due to the lens Caused by the oblique projection angle at the edge of the film''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''s field of view.
When shooting with a wide-angle lens or teleconverter lens for inconsistent models, such as 27mm,28mm,30.5mm,34mm,43mm,46mm,49mmFor other models, it can be solved by using an adapter ring.
First of all, I need to explain to you that our product is a wide-angle add-on lens. The wide-angle add-on lens is not an independent photographic lens. It is just an additional tool with an independent photographic lens. The link can increase the original focal length.(Zoom in. Objects on the screen increase and decrease the depth of field). So it has its own defects, such as distortion of square lines and distortion of color reproduction(Dispersion phenomenon)Of course this is related to the quality of the wide-angle add-on lens.
A wide-angle lens is a photographic lens with a focal length shorter than a standard lens, a viewing angle larger than a standard lens, a distance longer than a fisheye lens, and a viewing angle smaller than a fisheye lens. Wide-angle lenses are divided into two types: ordinary wide-angle lenses and ultra-wide-angle lenses. The focal length of the ordinary wide-angle lens of the 135 camera is generally 38-24 mm, and the viewing angle is 60-84 degrees; the focal length of the ultra-wide-angle lens is 20-13 mm, and the viewing angle is 94-118 degrees. Due to the short focal length of the wide-angle lens and the large angle of view, a larger area of ??scenery can be captured within a shorter shooting distance.