Adjustments allow the focusing of the beam from spot to flood. Provisions for color frames are generally present on the front of fresnels. Figure 5.5 depicts a typical fresnel spotlight. Typical fresnel spotlight. Specifically, no warranty is expressed or implied regarding the accuracy of the information contained within.
All trademarks are property of their respective owners.
You must obtain permission from the author before using the contents of The Handbook for anything other than private use.