Banner PresencePLUS Megapixel C-Mount Lenses - Manual (Page 6)

Lens Selection Guide
Banner Engineering Corp. • Minneapolis, MN • USA
www.bannerengineering.com • Tel: 763.544.3164
P/N 69950 rev. B
3
P/N 69950 rev. B
3
Determining Working Distance
Working distance is the distance between the back of the lens and the target object.
Some of the key factors that can restrict working distance are as follows:
• The minimum working distance of Banner’s standard lenses is about 2.5 inches. Banner’s
high-performance lenses and most C-Mount lenses have a minimum working distance of 14
inches (spacers can be used to reduce that working distance).
• The lens may need to be close to the target object to avoid light fluctuations.
• There may be physical constraints that limit where the camera can be mounted.
Camera
Working
Distance
Target Object