Photography is very familiar in today's technological developments including as the utilization in everyday life. In addition, the use of smartphones has also become a millennial lifestyle. Camera effects, which are part of digitization, require a way to produce good effects. The use of sepia effect has spread to various areas of human life, one of which is in smartphone cameras. The Spatial Mask method can be used to create a sepia effect on smartphone cameras by separating the mask from an RGB pixel, namely red, green and blue.