The Achilles heel to two-piece front projection systems has always been light. Any light, at any angle, will wash out the picture. The solution to this problem is a projector screen specifically made to reject ambient light while maintaining deep blacks and rich colors. Thatâ€™s exactly what the Stewart Filmscreen FireHawk G4 is made to do, and they have implemented a number of changes so the G4 does it better than the G3. Changes include a lower gain, completely opaque material, and increased off-axis viewing. Read on for our full review. Discuss "Stewart Filmscreen FireHawk G4 Projector Screen Review" here. Read the article.