DAY-FOR-NIGHT FILTER
 

The Harrison & Harrison filter can be purchase by anyone. It is about $60 or less these days. The company makes two kinds of Day-For-Night filters. One is called "cool-blue", and the other is called "monchromatic."

I will post more pictures when I get my footage back from the editor/producer. The long shots looked just as good as the closeup shots. The weakness of the filter is no different from any other day-for-night filter. It can not darken sky enough. (I would pay a lot for a filter with such capability.)

Again, the company is located in Porteville, California.