Figure 4 - Higher resolution photograph (471k) at 1000ft of low beam headlight and off-axis laser

1000ft low beam headlight off-axis laser

Distance 1000ft (354 meters). Full moon night 1-25-2005. f/2 iris. 1600 speed film. Pentax MV1 ASA setting - stepped down to 1250 ASA. Pentax MV1 SLR 50mm Lens with auto-shutter timing. Angular width of image is approx. 35 degrees.

Comments: At this distance to the naked-eye, the high beam headlight almost overwhelms the laser beam. This exposure overstates the headlight's glare as compared to the naked-eye. To the naked-eye, the green "dot" of the laser was visible next to the headlight. At 1000ft, the green laser pointer beam, is visible to the photographic left of the headlight, was about 12 inches to the left and 12 inches above the camera, and crosses in front of the headlight. A three-foot tall plastic highway reflector is visible in the foreground of the picture.

The green laser was stationed two feet to the photographic right of a car headlight. The car's second headlight was opaqued with masking.

K. Fisher fisherka@csolutions.net (1-26-2005)