vsCalc supports 516 cameras from 5 manufacturers. Arecont, Axis, Panasonic, Pelco and Sony. Get vsCalc on your iPad, iPhone and 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 (Picture Quality) and Target Distance. Quickly find all cameras that meet your prescriptive specification and performance requirements. Compare camera specifications and pricing including MSRP cost per megapixel and cost per square unit of measure.