How to use the gray card for photography?

Is an accurate test.

expose

Benchmark. Rich in layers,

colour

saturated

draw

Accurate exposure. If the light of the shooting scene is too bright or too dark, it may lead to exposure deviation. The gray card can balance all scenes with complex light to 18%.

Neutral ash

, through

light meter

Will get stuck in the ashes.

reflected light

If recorded, you can get accurate exposure.

numerical value

!

Grey card is suitable for hand-held exposure meter and TTL SLR.

camera

There is also a paraxial photometry camera. The use of grey cards is the guarantee of taking high-quality photos.

camera operator

Necessary tools.

Try to put the card as close as possible to the main body;

Avoid the card surface reflecting light to the camera;

For the plane subject (such as remake), the grey card should be parallel to the subject, and it is best to put it directly on the subject;

When shooting a three-dimensional object, point the gray card at the middle angle between the main light and the camera to prevent the card from reflecting light to the camera;

edge

Lens optical axis

The direction points to the gray card to measure the reflected light;

If the subject is very light-colored, according to the measured exposure

read

Subtract1ev;

If the subject is dark, add1ev; Calculating the exposure time according to the measured exposure reading;

If the main part is bright or dark, don't use this metering method. It is more appropriate to read with multiple measuring points.