About Us   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 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.   vsCalc® for Windows We plan to release vsCalc for Windows in the online store in January 2012. Single manufacturer versions will be available for Arecont Vision, Axis, Pelco, Panasonic and Sony. If you would like to have a camera manufacturer added to our growing database, please have them contact us directly. We do not charge the camera manufacturers for this service. We do ask for technical information about the sensor that is frequently omitted from the camera specifications.