The 4 x 4" 1.2 (4-stop) Cavision Day for Night Filter is a great way to create images simulating dusk or nighttime while filming during the day. This filter is valuable since is enables you to shoot during the day instead of paying overtime to a film crew for night work. This is a huge benefit when working with a strict budget or when production time is of critical importance. This unique filter is tinted lavender blue which is normally associated with the color of moonlight photography.
Cavision is a Canadian company specializing in quality filters for film, broadcast and video productions.
Note:
The Cavision Day for Night filter is available in strengths of 0.3, 0.6, 0.9 & 1.2, with the higher numbers having the greatest effect.
Day for night is based on the perception that moonlight is bluish in color.
This works best when images are underexposed.
Since you can cheat day for night with this filter, you can make better use of your crew's time and stay on budget.