https://www.vision-systems.com/cameras-accessories/article/16735776/understanding-fundamentals-of-imaging-lenses

In other words, it is the portion of the object that fills the camera's sensor. ... Some lenses, such as objective lenses, have a fixed working distance; many lenses ...

https://www.edmundoptics.com/resources/application-notes/imaging/understanding-focal-length-and-field-of-view/

By focusing the lens for different working distances, differently sized Fields of ... are three ways to change the field of view that the system (camera and lens).

https://www.vision-doctor.com/en/optical-calculations/calculation-working-distance.html

Lens calculator - Calculating the working distance a ... Calculating the working distance using focal length, object and sensor size .... Camera calculations.

https://www.the-digital-picture.com/Photography-Tips/how-to-calculate-lens-working-distance.aspx

The-Digital-Picture.com Canon DSLR Camera and Lens Reviews ... By lens working distance, I am referring to the distance from the end of the lens (or the end ...

https://www.lumenera.com/blog/the-impact-of-a-lens-focal-length-on-a-vision-system

Sep 15, 2017 ... If flexibility exists with the working distance, greater importance should ... As the camera moves closer, the apparent size difference between the ...

http://www.ni.com/product-documentation/54616/en/

Feb 15, 2018 ... Field of view (FOV): Area under inspection that the camera needs to ... The ratio of working distance to focal length is 381mm/6.06mm = 45:1.

https://machinevisionstore.com/design/calculator

Easily calculate focal length, field of view, or working distance. ... It is assumed the camera's sensor has a 4:3 aspect ratio, the sensor is a common size, and that  ...

https://en.wikipedia.org/wiki/Close-up_lens

In photography, a close-up lens is a simple secondary lens used to enable macro photography ... This is the maximal working distance at which you will be able to take a picture with the close-up lens. ... When you add a close-up lens to a camera which is focusing at the shortest distance at which the objective lens can focus ...

https://www.dinolite.us/features/wd

The Working Distance (WD) is the distance between the end of the Dino-Lite handheld microscope camera and object being viewed.

http://www.industrial-camera.com/working-distance.htm

Tips, basics and selection criteria for industria cameras - Working Distance.