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Controlling Depth of Field for Creative Effect
3/20/19 1 Copyright © 2019 Mark Naumann / Fly Boy Photo (www.flyboy.photo)
Bokeh--Agenda
! Defining Bokeh
! Defining Depth of Field
! Factors Affecting Depth of Field
! Minimizing Depth of Field—Maximizing Bokeh
! Examples
3/20/19 2 Copyright © 2019 Mark Naumann / Fly Boy Photo (www.flyboy.photo)
What is Bokeh?
! Bokeh: The Quality of the Unsharp, or Out-of-Focus, part of the Image.
! How to Pronounce Bokeh ! Video: “Bokeh”
3/20/19 3 Copyright © 2019 Mark Naumann / Fly Boy Photo (www.flyboy.photo)
What is Bokeh?
! Desirable Bokeh: ! Smooth, Subtle Gradations of Tone and
Color ! No Fringing or Unevenness ! Sharp Where Image Intended to be Sharp
! Good Bokeh Delivered by: ! Quality Lenses with Circular (or Nearly
Circular) Apertures
! Out of Focus Elements Assume Shape of Aperture
3/20/19 4 Copyright © 2019 Mark Naumann / Fly Boy Photo (www.flyboy.photo)
Depth of Field (DoF)
! Depth of Field (DoF): Defines the space within which an object will appear acceptably sharp. ! DoF is deep or extended if there is a great
distance between object in front of and behind the plane of best focus.
! DoF is shallow or narrow if there is only a small distance between objects that appear acceptably sharp in front of and behind the plane of best focus.
3/20/19 5 Copyright © 2019 Mark Naumann / Fly Boy Photo (www.flyboy.photo)
Factors Affecting DoF ! Aperture
! Large (f/1.4; f/2; f/2.8): Shallow DoF ! Small (f/16; f/22): Deep DoF
! Focal Length of Lens ! Long (telephoto): Shallow DoF ! Short (wide angle): Deep DoF
! Distance from Subject ! Close: Shallow DoF ! Far: Deep DoF
3/20/19 7 Copyright © 2019 Mark Naumann / Fly Boy Photo (www.flyboy.photo)
Factors Affecting DoF
! Images and Examples from Rocky Mountain School of Photography (RMSP).
! Link: RMSP-How to Blur Backgrounds
3/20/19 8 Copyright © 2019 Mark Naumann / Fly Boy Photo (www.flyboy.photo)
Factors Affecting DoF ! Aperture
3/20/19 9 Copyright © 2019 Mark Naumann / Fly Boy Photo (www.flyboy.photo)
Factors Affecting DoF ! Focal Length
3/20/19 10 Copyright © 2019 Mark Naumann / Fly Boy Photo (www.flyboy.photo)
Factors Affecting DoF
! Distance to Subject
3/20/19 11 Copyright © 2019 Mark Naumann / Fly Boy Photo (www.flyboy.photo)
Blurring Backgrounds ! Increase Distance between Subject and
Background (or Foreground Elements)
3/20/19 12 Copyright © 2019 Mark Naumann / Fly Boy Photo (www.flyboy.photo)
Achieving Bokeh
! To Maximize Bokeh, Minimize DoF
! Minimum (Shallow) DoF: ! Large Aperture ! Long Focal Length ! Close to Primary Subject ! Bokeh Field Separated from Primary
Subject ! Placed Outside of Primary Subject DoF
3/20/19 13 Copyright © 2019 Mark Naumann / Fly Boy Photo (www.flyboy.photo)
Bokeh Examples
! Shallow DoF
! Subject Separated from Background
! Background Lights have Bokeh
3/20/19 14 Copyright © 2019 Mark Naumann / Fly Boy Photo (www.flyboy.photo)
Bokeh Examples
! Relatively Shallow DoF
! Foreground Light Beyond DoF
! Snowflake Lens Mask ! Out of Focus Elements
Assume Shape of Aperture
3/20/19 15 Copyright © 2019 Mark Naumann / Fly Boy Photo (www.flyboy.photo)
Bokeh Exercise
! Stations with Background / Foreground Lighting
! Lens Masks
! DoF Experiment Station
! Flash to Illuminate Primary Subject
3/20/19 Copyright © 2019 Mark Naumann / Fly Boy Photo (www.flyboy.photo) 16
Bokeh
! Questions??
! Reference:
Ang, Tom: “Fundamentals of Photography”; Copyright 2008; Alfred A. Knopf
3/20/19 Copyright © 2019 Mark Naumann / Fly Boy Photo (www.flyboy.photo) 17