When should I use center weighted metering?
It requires a little extra thought than matrix metering does and is best used for scenes where you think you will need more control over where the camera measures the exposure. If you don’t want the lighting in the background, for example, to affect your exposure, you should switch to center-weighted metering.
What does metering mode do?
The metering mode determines which areas of the frame are used by the camera to measure subject brightness and how the camera sets exposure.
What are the 3 metering modes?
Most of today’s modern cameras have at least three different metering modes to choose from; matrix (evaluative), center-weighted, and spot.
What is center weighted?
Center weighted metering is a camera metering mode. For example, if you are shooting a natural light portrait and have placed your subject in the center of the frame, the camera will determine the correct exposure for their face while placing a significantly lesser importance on the background.
What is Matrix mode?
Matrix mode allows a comparison between two dimensions, setting one as columns and the other as rows (similar to a pivot table) to see, for example, who is buying Product X but not Product Y. Although classed as a mode, this feature is selected using the Matrix button rather than the Mode button.
What is the difference between spot center-weighted and matrix metering?
Center-weighted metering evaluates the light in the middle of the frame and its surroundings and ignores the corners. Compared to Matrix Metering, Center-weighted Metering does not factor in the focus point you select, it only evaluates the middle area of the image.
What is GL Pushmatrix in OpenGL?
glPushMatrix pushes the current matrix stack down by one, duplicating the current matrix. That is, after a glPushMatrix call, the matrix on top of the stack is identical to the one below it. glPopMatrix pops the current matrix stack, replacing the current matrix with the one below it on the stack.