Take photos at dusk or twilight, with no wind. The best time is approximately 20-45 minutes after sundown. Too much daylight will not show up your lighting project and too little daylight will create hot spots in the photograph.
Use the following
Focus while still daylight. Focus on an area about 40 feet in front of you.
Have your film processed by a regular processor.
CREDIT: Michael Bud Austin, Hadco - Division of Genlite
Cascade Lighting
3395 Miller Park Road, Suite 1
Akron, OH 44312
Toll Free: 1-800-758-6359
Phone: (330) 733-7070
Fax: (330) 733-4868