Here's a small and simple glossary related to photography. I hope that it can help you with your understanding and your pronunciation.
aperture
noun
Opening in a lens through which light passes to enter the camera.
Example: The aperture works like the pupil of our eyes.
fr: ouverture
bokeh
noun
The aesthetic quality of the blur produced in out-of-focus parts of an image.
Example: This lens renders a bokeh of quality.
fr: bokeh
diffuser
noun
Device which spreads the light from a light source evenly and reduces harsh shadows.
Example: Could you place the light diffuser on the left of the model?
fr: diffuseur
digital camera
noun
Device that records and stores digital images.
Example: He takes a picture with his digital camera.
fr: caméra numérique, appareil photo numérique
exposure
noun
Amount of light which reaches your camera sensor or film. It is a crucial part of how bright or dark your pictures appear.
Example: My picture is too bright because the exposure is too high.
fr: exposition
focus
noun, verb
Process of adjusting the lens to find maximum detail and sharpness in an image. It can be done either manually or automatically.
Example: Her face is out of focus.
fr: mise au point
Grain
noun
Visual distortion that affects the quality of the picture in film photographs. It is the random optical texture in images.
hard light
phrase
Type of light that creates harsh shadows. The transition between light and shadows is defined.
Example: Hard light creates more contrasts.
fr: lumière dure
image sensor
noun
Electronic device used in digital cameras and imaging devices to convert the light received on the camera or imaging device lens into a digital image.
Example: My digital camera has bigger image sensor than yours.
fr: capteur d'image
ISO
abbreviation
It stands for International Standards Organization. It is the light sensitivity rating of a digital image sensor.
Example: I will increase the ISO because the ambiant light is low.
fr: iso
lens
noun
Light-gathering device of a camera, typically containing a group of compound lenses.
Example: I use a 50mm lens for low-light shooting.
fr: lentille, objectif
noise
noun
Visual distortion that affects the quality of pictures taken by digital camera. It is the random variation of brightness or color information in images.
Example: Noise tends to get worse when you're shooting in low light.
fr: bruit
pixel
noun
Smallest item of information in an image. The more pixels there are, the better quality is the picture.
Example: My picture has a low amount of pixels.
fr: pixel
shutter
noun
Device through which the lens aperture of a camera is opened to admit light and thus expose the image sensor of a digital camera. Adjustable ones control exposure time, or the length of time during which light is admitted.
Example: There are two types of shutters in a digital camera.
fr: obturateur
Shutter speed
phrase
Length of time the camera shutter is open, exposing light onto the camera sensor.
Example: The picture is blurry because the shutter speed wasn't fast enough.
fr: vitesse d'obturation
soft light
phrase
Type of light with few hard shadows that’s bright yet balanced. The transition between the light and the shadows is more of a gradient and much smoother.
Example: The skin looks smoother when lightened with soft light.
