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When considering fluorescence technologies, a specific light cable is mandatory due to intrinsic wavelengths' transmission ability. Depending on the configuration of the video system, one should consider “fluorescence fluid” or “fluorescence fiberoptic” light cables. Since the most common fluorescence applications in veterinary surgery use ICG, the more frequently chosen type of cable corresponds to the fiber optic version.

The video camera system consists of the camera head, CCU, and monitor. Heads include adapters with different focal lengths that determine the displayed image size. However, image size and magnification can be adjusted more conveniently with an integrated optical zoom knob located on the camera head. Optical zoom produces a true magnified image without compromising the resolution, unlike digital zoom, which merely increases pixel size [1–5, 8, 13].

An important consideration may be the flexibility of the chosen camera for different procedures and different endoscopes. It may be prudent to consider both a variable focal distance head as well as a CCU that is compatible with all the types of scopes that might be used in practice (fiberscopes, videoendoscopes, and rigid telescopes). Multidisciplinary and versatile systems may support a broad endoscopy service for a reasonable investment. Larger practices may, however, consider having separate systems for different services [1–5].