Stagehand for iPhone brings the Roscolux and Apollo gel swatchbook to your iPhone and iPod touch! Gels are sorted into swatchbook order and can be searched to find the perfect color. Each gel is complete with its name, description, transmission, and also includes its RGB and HSB values for use with non-conventional lights and for mixing primary colors on cycloramas. Also included is a light mode where gel colors can be previewed by turning your device into a light fixture gelled with the selected color.