Wide-angle lenses
for the industry
Overview of
wide-angle lenses
What are wide-angle lenses?
Wide-angle lenses are lenses in which the focal length is significantly smaller than the image circle, usually by at least 20%. In other words, lenses are wide-angle if their focal length is significantly smaller than the sensor diagonal used in the application. For example, a 2/3" sensor with a focal length of 8 mm is considered a slightly wide-angle lens. A lens with a focal length of 4.8 mm, on the other hand, is an extreme wide-angle lens with a much larger angle of view. Wide-angle lenses are used when you want to capture as much of the scene as possible from a certain distance.
Technical Features of wide-angle lenses:
- Low distortion (distortion control): Low distortion is important in technical applications to ensure accurate measurements.
- Telecentricity: The lenses are often combined with non-telecentric wide-angle lenses, which can cause perspective distortion.
- Resolution: The lens must be compatible with the sensor. High optical resolution across the entire image field is important for wide-angle lenses.
- Light intensity (f/#): Important for short exposure times in fast processes.
- Robust construction: Industrial-grade lenses are protected against dust, vibrations, and temperature fluctuations.
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