SLR Photography Camera Settings and Exposure. What is exposure? In photography, exposure is the...

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SLR Photography Camera Settings and Exposure

Transcript of SLR Photography Camera Settings and Exposure. What is exposure? In photography, exposure is the...

Page 1: SLR Photography Camera Settings and Exposure. What is exposure? In photography, exposure is the total amount of light allowed to fall on the film (or.

SLR PhotographyCamera Settings and Exposure

Page 2: SLR Photography Camera Settings and Exposure. What is exposure? In photography, exposure is the total amount of light allowed to fall on the film (or.

What is exposure? In photography, exposure is the total

amount of light allowed to fall on the film (or electronic sensor in the case of digital photography) during the process of taking a photograph. Exposure is measured in exposure value (ev), with higher values denoting more light.

Page 3: SLR Photography Camera Settings and Exposure. What is exposure? In photography, exposure is the total amount of light allowed to fall on the film (or.

How is exposure controlled? Three factors control the exposure of the

image: Shutter Speed Aperture (f-stop) Film Speed (ISO)

Page 4: SLR Photography Camera Settings and Exposure. What is exposure? In photography, exposure is the total amount of light allowed to fall on the film (or.

Shutter Speed Shutter speed refers to how long the

camera shutter opens up to let light in. It is expressed in fractions of a second or full seconds (i.e 1/60th, 1/500th, 1/1000th).

The higher the number, the faster the shutter. A faster shutter means less light is let in.

Page 5: SLR Photography Camera Settings and Exposure. What is exposure? In photography, exposure is the total amount of light allowed to fall on the film (or.

Shutter Speed Fast shutter speeds are used to “freeze”

the action, e.g. for sports or action photography.

Slow shutter speeds are used when a blurring effect is desired – e.g. for the classic “waterfall” shot or for nighttime traffic pictures.

Page 6: SLR Photography Camera Settings and Exposure. What is exposure? In photography, exposure is the total amount of light allowed to fall on the film (or.

Fast Shutter Speed

Page 7: SLR Photography Camera Settings and Exposure. What is exposure? In photography, exposure is the total amount of light allowed to fall on the film (or.

Fast Shutter Speed

Page 8: SLR Photography Camera Settings and Exposure. What is exposure? In photography, exposure is the total amount of light allowed to fall on the film (or.

Slow Shutter Speed

Page 9: SLR Photography Camera Settings and Exposure. What is exposure? In photography, exposure is the total amount of light allowed to fall on the film (or.

Slow Shutter Speed

Page 10: SLR Photography Camera Settings and Exposure. What is exposure? In photography, exposure is the total amount of light allowed to fall on the film (or.

Aperture Aperture (or f-stop) refers to how much light

is let into the camera. There are a series of blades built in to the camera lens that open and close to let more or less light in.

Aperture settings are standardized, and expressed as numbers such as 2.8, 4, 5.6, 8, 11. The lower the number, the wider the aperture/more light let in.

Page 11: SLR Photography Camera Settings and Exposure. What is exposure? In photography, exposure is the total amount of light allowed to fall on the film (or.

Aperture Wider apertures cause a shallow “depth of

field”. Depth of field refers to the area of the

photograph that is in full focus. Wide apertures allow you to have an out of

focus background for more aesthetically pleasing portraits.

Page 12: SLR Photography Camera Settings and Exposure. What is exposure? In photography, exposure is the total amount of light allowed to fall on the film (or.

Shallow Depth of Field

Page 13: SLR Photography Camera Settings and Exposure. What is exposure? In photography, exposure is the total amount of light allowed to fall on the film (or.

Shallow Depth of Field

Page 14: SLR Photography Camera Settings and Exposure. What is exposure? In photography, exposure is the total amount of light allowed to fall on the film (or.

High Depth of Field

Page 15: SLR Photography Camera Settings and Exposure. What is exposure? In photography, exposure is the total amount of light allowed to fall on the film (or.

High Depth of Field

Page 16: SLR Photography Camera Settings and Exposure. What is exposure? In photography, exposure is the total amount of light allowed to fall on the film (or.

Film Speed (ISO) Film Speed refers to the sensitivity of the

film or image sensor to light – that is, how fast it is able to capture the image.

Expressed in ISO numbers e.g. 50, 100, 200, 400, 800.

The higher the number, the faster the image is captured - faster film tends to be “grainier” though.

Page 17: SLR Photography Camera Settings and Exposure. What is exposure? In photography, exposure is the total amount of light allowed to fall on the film (or.

Film Grain

Page 18: SLR Photography Camera Settings and Exposure. What is exposure? In photography, exposure is the total amount of light allowed to fall on the film (or.

Digital Noise

Page 19: SLR Photography Camera Settings and Exposure. What is exposure? In photography, exposure is the total amount of light allowed to fall on the film (or.

Setting Exposure Automatic (P) – Camera Decides Shutter Priority (Tv) – You set Shutter,

camera sets Aperture Aperture Priority (Av) – You set Aperture,

camera sets Shutter Full Manual (M) – You set

both

Page 20: SLR Photography Camera Settings and Exposure. What is exposure? In photography, exposure is the total amount of light allowed to fall on the film (or.

Under and Over Exposure Camera sets exposure based on 18% grey

reflectiveness Overexposure occurs when too much light

is let in to camera – picture is bright Underexposure occurs when not enough

light is let in – picture is dark

Page 21: SLR Photography Camera Settings and Exposure. What is exposure? In photography, exposure is the total amount of light allowed to fall on the film (or.

Overexposed

Page 22: SLR Photography Camera Settings and Exposure. What is exposure? In photography, exposure is the total amount of light allowed to fall on the film (or.

Underexposed

Page 23: SLR Photography Camera Settings and Exposure. What is exposure? In photography, exposure is the total amount of light allowed to fall on the film (or.

Difficult Exposure Situations Subject in front of bright window – hard to

get even exposure (subject too dark or background too bright)

Taking pictures on snow or ice – Camera is fooled, snow may look greyish.

Page 24: SLR Photography Camera Settings and Exposure. What is exposure? In photography, exposure is the total amount of light allowed to fall on the film (or.

Overexposure