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Understanding Exposure Part 2: Aperture by Danny Perez Photography

Understanding Exposure: Aperture

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Page 1: Understanding Exposure: Aperture

Understanding Exposure

Part 2: Aperture

by Danny Perez Photography

Page 2: Understanding Exposure: Aperture

Recap

The exposure is the amount of light received by the film or sensor and is determined by how wide you open the lens diaphragm (aperture) and by how long you keep the film or sensor exposed (shutter speed). The effect an exposure has depends on the sensitivity of the film or sensor.

Page 3: Understanding Exposure: Aperture

The Exposure Triangle

It is better to be under exposed than over exposed!

Page 4: Understanding Exposure: Aperture

Correct Exposure

✦ Right amount of light

✦ Balance of light and dark

✦ Light meter indicates correct exposure

✦ Combination shutter speed, aperture and ISO

✦ Can be 6 or more combinations

✦ Auto mode yields a “correct exposure”

Page 5: Understanding Exposure: Aperture

Consider This...

1. ISO 100 f/4 1/500 sec.

2. ISO 100 f/5.6 1/250 sec.

3. ISO 100 f/8 1/125 sec.

All “correct exposures”

Which is best? It depends...

Page 6: Understanding Exposure: Aperture

Creative Exposure

✦ Isolate a subject

✦ Blur your backgrounds

✦ Tell a story

✦ Show action

✦ Freeze action

It’s about finding the right combination of aperture, shutter speed and ISO

by macrophile

Page 7: Understanding Exposure: Aperture

Focus on Aperture

Using aperture to get creative exposures

Page 8: Understanding Exposure: Aperture

What is the Aperture

by Erwin Bolwidt (El Rabbit)

A hole or an opening through which light passes.

Page 10: Understanding Exposure: Aperture

Less is More

by Mehmetaergun via Wikimedia Commons

The smaller the f number, the large the openingFull Stops 1, 1.4, 2, 2.8, 4, 5.6, 8, 11, 16, 22, 32, 45

Page 11: Understanding Exposure: Aperture

What does this mean?

I want to take pictures - how do I use this to my advantage?

by Brian Lane Winfield Moore

Page 12: Understanding Exposure: Aperture

Amount of Light

In low light a fast lens will allow the lens to gather more light.

Page 13: Understanding Exposure: Aperture

Depth of Field

I want to take pictures - how do I use this to my advantage?

by lattiboy

Page 14: Understanding Exposure: Aperture

Creative Aperture

✦ Storytelling Apertures

✦ Singular-Theme Aperture

✦ “Who Cares” Aperture

Based on Bryan Peterson’s Understanding Exposure

Page 15: Understanding Exposure: Aperture

Storytelling Aperture✦ Sharp focus throughout

✦ A beginning, middle and end

✦ Landscapes

✦ Works best with wide angles

✦ Where to focus

✦ Small aperture f/16, f/22, f/32by E_TAVARES

Page 16: Understanding Exposure: Aperture

Singular-Theme Aperture

✦ Isolation of subject

✦ Portraits

✦ Flowers

✦ Telephoto lenses work best

✦ Large apertures f/5.6, f/4, f2.8by Anderson Mancini

Page 17: Understanding Exposure: Aperture

“Who Cares” Aperture✦ “f/8 and be there”

✦ Use when depth of field is not a concern

✦ Subjects at same focal distance

✦ Sweet spot on elliptical glass

✦ Critical sharpness and great contrast

✦ f/8 and f/11

by Ian Muttoo

Page 18: Understanding Exposure: Aperture

Bokeh

Aesthetic quality of the blur, in out-of-focus areas, or "the way the lens renders out-of-focus points of light."

by Josh Liba

Page 19: Understanding Exposure: Aperture

But How?

Turn the dial: aperture priority or manual mode

Page 20: Understanding Exposure: Aperture

Demo Time

Let’s try something fun

by msjacoby

Page 21: Understanding Exposure: Aperture

Question?

How? What? Where? When? Why?

by e-magic

Page 22: Understanding Exposure: Aperture

Stay Tuned

Shutter speed coming up next