Quantum Help wrote:
The dome is a diffuser that spreads light all around and is usually used on a 45 degree angle.
You may be very right in that most people use them at a 45 degree angle. Since they create an omnidirectional light that mimics the bare bulb effect created when the parabolic reflector removed from the old bulb type flash heads, I never saw much purpose in aiming them any direction other than straight up.
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