One of the most important tools for any photographer, other than a camera, is an accurate light meter. Whether it is an internal reflective light meter inside your camera or a separate hand-held ambient light meter, if it does not perform correctly, your entire shoot could be at jeopardy. You can check the accuracy of older light meters, whether they are a digital model with an liquid crystal readout or an analogue model using a needle and dial, against the light meter in your camera.
Instructions
- 1
Attach your camera to a tripod, turn on your camera and set the exposure mode to manual, indicated by the letter M.
2Set your cameras shutter speed and ISO (light sensitivity) to the same setting. The ISO should read 400 and your shutter speed should read 1/400th of second. Set light sensitivity on your light meter to 400 as well. Depending on how old the light meter may be, it may be seen as "ASA," as opposed to "ISO."
3Place or have someone hold a gray card 2 feet in front of the cameras lens and angle it at a 45-degree angle towards the sky or ceiling, if indoors. A gray card is as its name suggests a card of gray material that photographers can use to set white balance and to measure exposure. Its color is designed not to be too reflective, allowing the two meters to obtain accurate readings.
4Take a reading off of the gray card through your cameras meter. Look through the viewfinder and adjust the aperture until you exposure is at the correct level. This will be your base line meter reading to compare against the older meter.
5Take a reading off the gray card using the older meter. Confirm its readings against the reading from your camera. If they are the same, then both meters are functioning correctly. If there is a variance, make sure the lighting conditions were the same. If you were outdoors, you will want to conduct both readings either in sunny or cloudy conditions for consistency.
One of the most important tools for any photographer, other than a camera, is an accurate light meter. Whether it is an internal reflective light meter inside your camera or a separate hand-held ambient light meter, if it does not perform correctly, your entire shoot could be at jeopardy. You can check the accuracy of older light meters, whether they are a digital model with an liquid crystal readout or an analogue model using a needle and dial, against the light meter in your camera.
Instructions
- 1
Attach your camera to a tripod, turn on your camera and set the exposure mode to manual, indicated by the letter M.
2Set your cameras shutter speed and ISO (light sensitivity) to the same setting. The ISO should read 400 and your shutter speed should read 1/400th of second. Set light sensitivity on your light meter to 400 as well. Depending on how old the light meter may be, it may be seen as "ASA," as opposed to "ISO."
3Place or have someone hold a gray card 2 feet in front of the cameras lens and angle it at a 45-degree angle towards the sky or ceiling, if indoors. A gray card is as its name suggests a card of gray material that photographers can use to set white balance and to measure exposure. Its color is designed not to be too reflective, allowing the two meters to obtain accurate readings.
4Take a reading off of the gray card through your cameras meter. Look through the viewfinder and adjust the aperture until you exposure is at the correct level. This will be your base line meter reading to compare against the older meter.
5Take a reading off the gray card using the older meter. Confirm its readings against the reading from your camera. If they are the same, then both meters are functioning correctly. If there is a variance, make sure the lighting conditions were the same. If you were outdoors, you will want to conduct both readings either in sunny or cloudy conditions for consistency.
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