Posted by Donovan Taylor on January 17, 2001 at 10:31:41:
I am planning to improve the lights at my local club. Can anyone give me advice as to the correct lighting that will make it legal.
Thanks in advance. -donovan
Posted by Michael Ray on January 17, 2001 at 12:28:16:
If you can find a light meter, 1000 lux at the targets and 300 lux general range lighting is the ISSF standard.
A mix of incandescent and fluorescent works best. When we put in our new range (NCAA rifle), I made sure we would have plenty of light. Ceiling height is 9.5'. I've got a row of FL fixtures about 3 feet in front of the targets and a row of spots (2 per point) that now house 90W Sylvania bulbs with diffused lenses about 8-9 feet in front. If I do say so myself, it's the best lit collegiate range I've ever seen to date. The only thing I would have liked is having some lights on the floor as well, but I didn't have that option available to me and it turns out I really didn't need it.
If you are not doing 3P 10m rifle as well, you'd have no need for floor lighting anyway since all the targets will be near 1.4m from the floor.
FYI, the Atlanta range has a row of FL above the firing points, a row (or 2?) of FL way up high angled toward the targets and a 50W Philips spot 14" from the target face.
Posted by mako on January 17, 2001 at 13:36:19:
In Reply to: Re: Lighting for 10m indoor range posted by Michael Ray on January 17, 2001 at 12:28:16:
If you can't find an illuminance meter, here are some "translation" using a regular light meter. These light readings are most easily obtained using a light meter with an "incident" diffusing dome. If you are using a reflective meter, such as one built in to a camera, you need to check your readings off of an 18% Gray Card - obtainable at photo stores. The light meter should be set at an Exposure Index (ASA) of 100.
1000 Lux equals to 1/60th second and F2.0 + 6/10th. (about half way between F2.0 and F2.8)
300 Lux equals 1/60th at almost F1.4 (F1.0 + 8/10th)
1000 Lux can be obtained with a 60 watt bulb at little less then 2 feet from the target. You can use an inexpensive goose neck lamp hung above and in front of the targets.
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