Most filming involves the use of very hot bright lights. For a corporate video, when you are likely to be filmed in an enclosed space with the air conditioning turned off to reduce background noise, your face can easily appear ‘shiny’ or sweaty on camera.
If this happens, most good camera crews will apply face powder to take away the shine. However, it is advisable to always ask the film crew if you look shiny to make sure that they have made the consideration. If you do look shiny, ask the crew to apply some light face powder.
Women who wear make up usually prefer to bring their own. If that is your case, simply apply a little more than usual and ask the crew to advise if additional make-up should be applied during filming.