On the left is how your gelled lit background looks before you introduce another light to the set. In the middle we have a softbox as our key light and on the right we have a gridded dish as our key light. It's very clear to see that the key light modifier plays a big role in how our gelled background is affected.
A favorite with fashion photographers, Profoto StripLights are special application flash heads that provide a long and narrow light source with a subtle fall-off. They are commonly used by car photographers to create razor-sharp reflections i