About Us   Engineering Support Services Experienced help, when you need it most. There is a learning curve to every new technology and the transition from analog CCTV to IP based network video surveillance is no different. We have quietly been helping contractors and low voltage systems integrators overcome the hurdles of new technology for many years.   Video Surveillance Consulting Gish Technology is a provider of video surveillance consulting services in a number of vertical market sectors including education, gaming, health care, logistics, manufacturing, parking and retail.   vsCalc® Gish Technology is the developer of vsCalc software, a video surveillance calculator for tablet computers and smart phones. Get vsCalc on your iPad, iPhone or iPod touch. Easily select the correct camera and lens combination for your video surveillance project. Instantly calculate Field of View, Angle of View and Focal Length based on the Object of Interest, Visual Acuity Index and Target Distance.   vsCalc® tools Gish Technology introduces 2D CAD software tools. The new software named “vsCalc tools” generates 2D camera coverage models that are color-coded to indicate varying levels of visual acuity or picture quality. Get vsCalc tools on your Windows PC. Add visual acuity layers to your Visio drawings. Quantify camera placement and coverage for your video surveillance projects. Use in conjunction with vsCalc, the Video Surveillance Calculator.