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Types of Machine Vision Lenses

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Types of Machine Vision Lenses

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This lens selection guide is broken into three distinct parts. This app note, which is the first section, Types of Machine Vision Lenses, answers the question: what kind of lens do I need for my application? For the purposes of this text, lenses will be divided into one of two buckets: a variable magnification lens or a fixed magnification lens. It describes these different types of lenses and what they are useful for. The second section, Basic Lens Selection explains how to make an informed lens selection when a camera has already been chosen, which is often the case. This section focuses on lens selection by emphasizing the importance of comparing the needed field of view (FOV), set by application requirements, to the FOV specification on the lens data sheet, given the working distance (WD) or other constrained parameters.

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