Zoom Lenses
Zoom Lenses for Precision Imaging
Both varifocal and zoom lenses are equipped with movable elements that allow for the adjustment of focal length. These types of lenses offer a versatile solution for applications that previously necessitated the use of multiple fixed focal length lenses to achieve the desired field of view at a specific working distance. For instance, a lens may be specified with a range like 2.8 -12mm or 5 – 50mm, indicating that the focal length can be varied within these specified intervals. Varifocal and zoom lenses find applications in various fields, including inspection, machine vision, robotics, and more.
Zoom Lenses
With varifocal and zoom lenses, users have the flexibility to choose an effective focal length within the given range, such as 6 – 60mm. When using a varifocal lens, it’s important to note that refocusing is necessary whenever the focal length is adjusted. In contrast, a zoom lens maintains focus even while adjusting the focal length. The varifocal lens is an economical and compact option, which makes it a cost-effective choice compared to a zoom lens.
Avantier Inc. offers a diverse range of both zoom and varifocal lenses, with options for manual or motor-controlled zoom versions. For those seeking motorized zoom and focusing capabilities, Avantier provides lenses equipped with electromotors and controllers that can seamlessly integrate into existing systems. Customers have the flexibility to select specific motors tailored to their requirements, enabling basic operations like zoom, focus, and iris adjustments.
Please contact Avantier if you’d like to schedule a free consultation or request for a quote on your next project.
Focal Length |
19.3-22.6mm |
Maximum Aperture |
F/1.7 (wide) – 2.2 (tele) |
Imager Format |
0.63″ LCD 1280X768 |
Zoom Ratio |
1.2 |
Field Angle |
56° |
Imager Circle |
21.5mm |
Distortion |
1.50% |
Relative Illumination |
80% |
Projection Range |
1~infinity |
Lateral Color |
<0.7 pixel |
Focal length |
56mm-560mm |
F/# |
F5-F30 |
Imaging size |
8mm |
Zoom Ratio |
10 |
Field Angle |
8°-0.8° |
Distortion |
1% |
Relative illumination |
＞98% |
Projection range |
Infinity |
Lateral color |
＜0.2 Pixel |
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