Products
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Vari-focal & Manual Iris Lenses |
Vari-focal lens is kind of zoom lens where you have a range of focal lengths you can take. For example, our popular 3-8mm lens fit most of the installation requirement which allow you to adjust for the field of view you like from wide, somewhat distant view to narrower angle bringing the objects closer.
Vari-focal lens are available in manual Iris lens and auto iris lens. Pricing for manual iris lenses is higher than fixed iris and lower than auto iris lenses.
Manual iris lens has a manual adjustment to set the iris opening (f-stop) in a fixed position, generally used for fixed lighting applications.
Auto iris lens are designed for outdoor use or any applications with variable lighting conditions. For information about auto iris lens feature, just click the link
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Tips:
In constant light conditions that are either dim or very bright, a "Manual Iris Lens" may be the answer. As it's name implies, this type of lens can have the Iris aperture adjusted by hand to give the optimu
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