Users' questions

What is the equivalent value of a Footcandle?

What is the equivalent value of a Footcandle?

A foot-candle equals one lumen per square foot. This is a British measurement. Using the metric system, a lumen is measured by a square meter or a lux. Thus a foot-candle is equivalent to approximately 10 lux or 10.57 lux.

How to convert lux to f stop?

Lux is the European equivalent of footcandle and is slowly replacing footcandles. Unfortunately, they aren’t equal. There are 10.74 lux to one footcandle. Roughly, people convert lux to footcandles by dividing by 10.

How do you convert foot-candles to lumens?

One foot-candle equals 10.76 lumens (a lumen is considered the same as lux, which is what most modern light meters calculate their measurements in), so in order to convert your foot-candles to lumens, you will need to take the amount of foot-candles measured and multiply by 10.76 to get the number of lumens.

What does fc mean on a light meter?

CGS units. 1.076×10−3 phots. A foot-candle (sometimes foot candle; abbreviated fc, lm/ft2, or sometimes ft-c) is a non-SI unit of illuminance or light intensity. The foot-candle is defined as one lumen per square foot.

What is the OSHA standard for lighting?

General construction areas require a minimum of 5 foot-candles of illumination, and plants and shops require at least 10 foot-candles. For other types of workplaces, the minimum illumination standards are as follows: First-aid stations and infirmaries: 30 f-c. Warehouses, walkways, and exits: 10 ft-c.

What are the F stops on a camera?

F-stop is the term used to denote aperture measurements on your camera. The aperture controls the amount of light that enters the camera lens, and it’s measured in f-stops.

How do you convert EV to lux?

1 Answer

  1. EV is 5 Lux.
  2. EV is 10 Lux.
  3. EV is 20 Lux.

How many foot candles is a 60 watt bulb?

What is considered adequate lighting? Adequate lighting means a light intensity of 20 foot-candles (approximately equivalent to a 60 watt bulb at a clear distance of 5 feet).

How many lumens is 10 foot candles?

For example, a 100 square foot living room, which needs 10-20 foot-candles, will need 1,000-2,000 lumens. A 100 square foot dining room, which needs 30-40 foot-candles, will need 3,000-4,000 lumens….How much light do I need?

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Is par the same as foot candles?

They’ll say that measuring perceived brightness in lux (lumen per square meter) or foot-candles (lumen per square foot) is less accurate because perceived brightness is most sensitive in the green region of the spectrum (550 nm), whereas PAR includes the farther ends of the visible spectrum (blue – around 400 nm and …

How many lumens is a lux?

one lumen
One lux is equal to one lumen per square meter (lux = lumens/m2). Essentially, as light travels from the emitter, it will disperse throughout an area.