With the development of optical lens and the pursuit of high pixel, high definition and other image quality of optical lens, choosing a low distortion lens or wide angle lens no distortion is the selection standard for front-end lens in many industry applications. For example, when photographing A4 size documents with a high-resolution camera, it is required that there is no distortion around the edge, and the illumination around the edge is good to ensure that the image is uniform and transparent; In addition to requiring high depth of field, it is required to identify objects such as QR code in a certain depth of field, and select a high-resolution lens without distortion, which plays a decisive role in the effect of the whole scheme.
Tesoo, as one of the most professional low distortion lens manufacturers, are able to provide qualified low distortion lens such as 5.4 mm non fisheye lens and so on. If you want to learn more details, feel free to contact us.
The sensor size of wide angle lens no distortion is 1/2'' to 1/4''. TTL: 5.99-22.3mm. EFL: 1.65-16mm. F.NO: 2.0/2.2/2.4/2.6/4.0/4.8/5.7. MBFL: 1.48-5.20mm.
The sensor size of scanning lens is 1/2'' to 1/3''. TTL: 7.49-22.3mm. EFL: 1.65-16mm. F.NO: 2.0/2.2/2.6/4.0/4.8/6.0. MBFL: 1.48-6.30mm.
The sensor size of 5.4 mm non fisheye lens is 1/1.8'' to 1/3''. TTL: 7.49-16.73mm. EFL: 4.60-5.60mm. F.NO: 2.4/2.6. MBFL: 1.48-6.24mm.
The sensor size of 6.5 mm lens is 1/2.7'' to 1/3''. TTL: 21.43/22.5mm. EFL: 6.0/6.50mm. F.NO: 2. MBFL: 5.20/6.55mm.
The sensor size of 90 degree lens is 1/1.8'' to 1/3''. TTL: 9.95-25.3mm. EFL: 2.60-5.60mm. F.NO: 2.0/2.2/2.4/2.8. MBFL: 1.81-5.06mm.
The sensor size of 84 degree angle lens is 1/2.3'' to 1/2.8''. TTL: 20.5-22.4mm. EFL: 2.7-6mm. F.NO: 1.8/2.2. MBFL: 2.4mm.
Non-distortion; Resolution: 8MP; no distortion for the ADAS camera; 70 degrees small wide-angle without distortion
Lens distortion is actually the general term of the inherent perspective distortion of optical lens, that is, the distortion caused by perspective. This distortion is very unfavorable to the imaging quality of photos. After all, the purpose of photography is to reproduce, not exaggerate, but because it is the inherent characteristic of the lens, it can not be eliminated and can only be improved. Low distortion lens such as scanning lens is a kind of lens that can reduce the degree of perspective deformation. In the production process, high-grade lens optical design and materials are used, and high-quality optical glass is selected to manufacture lenses by using the optimal design of lens group.
Although distortion will have a negative impact on photographic imaging more often. But if used properly, it can show more interesting works. Contact us for more camera lens distortion info.
When shooting buildings or trees with a wide-angle lens, the vertical line will bend inward, resulting in trapezoidal distortion or convergence effect. The unique trapezoidal distortion of wide-angle lens makes the building look more magnificent and tall.
Objects close to the lens look larger, while things farther away from the lens look smaller. Therefore, the foreground will be enlarged and exaggerated, while the background will gradually shrink and disappear. Making full use of wide-angle distortion can exaggerate the display of foreground elements and make ordinary scenes artistic.
The wide-angle lens will elongate the object, resulting in an exaggerated sense of depth. Makes objects look longer, higher, and farther. When shooting a portrait, when your camera is close to your legs, when shooting from a lower shooting position and an upward angle, your legs will become very long and look out of proportion to the whole body, which will effectively "stretch" the portrait.
Lens distortion is actually the general term of the inherent perspective distortion of optical lens, that is, the distortion caused by perspective. The distortion phenomena include pillow distortion and barrel distortion. When using a telephoto lens or the telephoto end of a zoom lens, pillow distortion is most easily detected. Barrel distortion, also known as barrel distortion, is the distortion phenomenon of barrel expansion of imaging pictures caused by the lens. Barrel distortion is most easily detected when we use a wide-angle lens or the widest end of a zoom lens. Distortion is caused by the large inclination of light. Unlike spherical aberration and astigmatism, distortion does not destroy the concentricity of the light beam, so it does not affect the definition of the image.
Distortion is manifested in the fact that each part of the figure in the image plane is out of proportion to the original object. The distortion is related to the position of the diaphragm. We can correct lens distortion through many methods, but we can't eliminate it.