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Manual Controls

Shutter speed, aperture, ISO
by

Lydia Brooks

on 28 November 2016

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Transcript of Manual Controls

Proper Exposure
Shutter Speed
Fast shutter speed = stop motion
Slow shutter speed = shows motion
The amount of time the shutter is open
Aperture
1/30
1/125
Any shutter speed below 1/60 you must use
a tripod to prevent camera shake
The size of the lens opening
Shallow depth of field
Long depth of field
ISO
Controls how sensitive the camera sensor is to light
ISO 100
ISO 1600
Less noise = sharper detail
more noise = less detail
Outside: daytime
Inside, dusk, night

Indoor Sports Events – where your subject is moving fast yet you may have limited light available.
Concerts – also low in light and often ‘no-flash’ zones
Art Galleries, Churches etc- many galleries have rules against using a flash and of course being indoors are not well lit.
Birthday Parties – blowing out the candles in a dark room can give you a nice moody shot which would be ruined by a bright flash. Increasing the ISO can help capture the scene.
Situations where you might need to push ISO to higher settings include:
Shallow depth of field
Long depth of field
Stop motion
Show motion
Imagine your camera is like a window with shutters that open and close.

Aperture is the size of the window. If it’s bigger more light gets through and the room is brighter.

Shutter Speed is the amount of time that the shutters of the window are open. The longer you leave them open the more that comes in.

Now imagine that you’re inside the room and are wearing sunglasses. Your eyes become desensitized to the light that comes in (low ISO). When you take off the sunglasses your eyes are sensitive to the light (high ISO).

There are a number of ways of increasing the amount of light in the room (or at least how much it seems that there is. You could increase the time that the shutters are open (decrease shutter speed), you could increase the size of the window (increase aperture) or you could take off your sunglasses (make the ISO larger).
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