Skip to main content

Photography: Depth of Field

 Depth of Field is the area of clear vision of the camera. Depth of field is defined as the distance between the nearest and the farthest objects that are in acceptably sharp focus in an image. So, basically it's that which is in focus.

Depth of Field

Study the PDF below

(to be used for educational purposes only)

Depth of Field/Focus PDF

There are basically two kinds of depths of field.

1.     Deep or broad depth of Field

2.     Shallow or narrow depth of field

We can divide the visual field of a camera into three with reference to distance, namely, foreground, middle ground and background.

When all the three grounds are clearly visible it is called deep/broad depth of field. When only one, or not all the grounds, among the three grounds is clearly visible it is called shallow/narrow depth of field.

Deep Depth of Field

Documentary photographs and news journalistic photographs are mostly taken with deep depth of field. The truth telling capacity of such images are greater. Shallow depth of field, on the other hand, brings simplicity and greater aesthetic appeal to the images.

Shallow Depth of Field

Two factors contribute to creating depth of field,

1.     Focal length of the lens

2.     Aperture

With higher focal length its relatively easier to achieve shallower depth of field. 
Large aperture (smaller aperture number) creates shallow depth of filed.
Focusing 

Lens has to be at a comfortable distance from the subject of shoot for it to begin to see the subject with clarity. This is called Minimum Focus Distance (MFD), or Macro (not to be confused with macro photography).

Camera’s Focus works on two modes.

Auto Mode: The camera focuses on the subject automatically.

Manual Mode: Focus is achieved by manipulating the focus ring on the lens.


There are two other factors that help in focusing 

Autofocus Modes: When on Manual Focus, the photographer controls the focus. Autofocus Modes help in more targeted focusing while on Auto Focus.

Autofocus Points: When on Manual Focus, the photographer controls the focus. So Autofocus points are irrelevant.Autofocus points help in specifying which area on the screen to be focused.

Comments

Popular posts from this blog

Visual Analysis: SEMIOTICS

 Visual analysis is a systematic and scientific approach to examining visual materials that goes far beyond casual observation.  In our visually saturated world, images have become a inescapable universal language that shapes our perceptions, attitudes, and experiences. From the artworks adorning gallery walls to the advertisements lining city streets, visuals communicate narratives, evoke emotions, and reflect sociocultural ideologies. However, the process of seeing and interpreting visuals is not as spontaneous or natural as we often assume. As John Berger notably stated, "seeing is an active decision," suggesting that the process of interpreting visuals is neither spontaneous nor natural, but rather requires conscious effort and critical thinking. The way we perceive and interpret visual content is heavily influenced by habits, conventions, and our individual perspectives.  Serious visual analyses requires conscious effort and critical analysis to unravel the laye...

Visual Analysis: INTRODUCTION

 Visual analysis is a systematic and scientific examination of visual materials that explores their communicative meaning, aesthetic qualities, and functional impact. As Susan Sontag noted, humans tend to linger in "mere images of the truth," making it crucial to develop a deeper understanding of visual interpretation. Study the PDF below (for academic use only) Introduction to Visual Analysis PDF The Nature of Seeing: The process of seeing is not as spontaneous or natural as commonly believed. According to John Berger, our way of seeing art has historically been influenced by privileged minorities to maintain social and economic dominance. Visual perception requires conscious effort and is heavily influenced by habits and conventions. The visual faculty consumes approximately two-third of a person’s used energy, highlighting its significance in human experience. The Framework of Visual Analysis: Visual analysis could be traced back to communication models, for example, Har...

The Brown Sisters: A Four-Decade Portrait of Time and Sisterhood

 Nicholas Nixon's "The Brown Sisters" stands as one of photography's most compelling longitudinal portrait studies, documenting four decades of sisterhood through annual black-and-white photographs taken from 1975 to 2014. Using an 8×10 inch view camera, Nixon captured his wife Bebe and her three sisters—Heather, Mimi, and Laurie Brown—in the same order each year, creating a remarkable visual meditation on time, aging, and familial bonds. For the full set of images see the PDF below (for academic use only) Forty Portraits in Forty Years PDF What began as a spontaneous family photograph in 1975 evolved into a profound artistic documentation of human transformation. The project's strength lies in its methodological consistency: the sisters maintain their positions, with the sequence remaining unchanged throughout the series. This rigid framework paradoxically highlights the subtle changes that occur year by year, creating a powerful commentary on the passage of time...

Sigmund Freud on Creative Writing and Day-Dreaming

 Freud in his essay, Creative Writers and Day-Dreaming, explores the psychological origins of artistic creativity and the impact of literature on readers. He draws parallels between the imaginative activity of creative writers and the day-dreaming of ordinary people. It is a discussion about the relationship between creative art and unconscious phantasy. In it, Freud talks about the role of daydreaming and fantasy in human behaviour, and how creative writers are able to express their daydreams without shame or self-reproach. Read the essay below (for academic use only) Creative Writers and Day Dreaming PDF Freud argues that the child's play and the adult's phantasies/daydreams share a common element—the desire to alter an unsatisfactory reality and fulfil unfulfilled wishes. The creative writer is like a successful daydreamer who is able to transform their private fantasies into works that provide pleasure to the audience. Freud suggests that the writer's choice of subject...

A Critical Visual Analysis of Jan Banning's ‘Bureaucratics’

 Jan Banning's photographic series Bureaucratics offers a remarkable anthropological study of civil servants across eight countries, revealing how power, hierarchy, and cultural identity manifest in governmental spaces. Through meticulously composed photographs taken from a citizen's perspective, Banning unveils the theatre of bureaucracy the most immediate visual impact comes from Banning's consistent methodology: each photograph is taken from the same height and distance, positioning the viewer in the role of a citizen approaching the bureaucrat's desk. The bureaucrats are photographed in their natural habitat – their offices – which become stages where power dynamics and cultural values are performed daily. Make visual analysis of  Bureaucratics  by Jan Banning given below. Bureaucratics by Jan Banning PDF  (for academic use only) In examining the spatial arrangements, a clear pattern emerges: the desk serves as both barrier and symbol of authority. In many image...

2025 Must Create Its Own Art

 Tonight’s art becomes inadequate
and useless when the sun rises in
the morning. The mistake lies not in creating art for tonight, but in assuming tonight’s answers will serve tomorrow’s questions. Louise Bourgeois, a French American artist, reflected, “art is a guaranty of sanity;” but that guarantee must be renewed with each dawn, each cultural shift, and
each evolution of human consciousness. If some art endures through generations, it
is only because of its capacity to speak, its ability to demand fresh interpretations that test and challenge the new. To guarantee sanity in the coming year, 2025 must create
its own art. Why create art? Why watch art? Why read literature? True art, in the words of Sunil P Ilayidam, shakes that which is rigid and unchangeable. Art serves as humanity’s persistent earthquake, destabilising comfortable certainties and creating space
for new ways of seeing, thinking, and being
in the world. An artist’s duty is to reflect the times, and we see this in...

Early History of Cinema

 The late 19th and early 20th centuries witnessed the birth and rapid evolution of cinema as a new artistic and technological medium. Lets us examine the key innovations, pioneers, and early milestones that shaped the beginnings of cinema, from its precursors in motion photography to the establishment of narrative filmmaking techniques. Study the PDF below (for academic use only) History of Cinema PDF The foundations of cinema can be traced to experiments in capturing and displaying motion through photography. In 1878, Eadweard Muybridge's groundbreaking "The Horse in Motion" used multiple cameras to decompose the movement of a galloping horse into a sequence of still images. This technique presaged the fundamental principle of cinema - the illusion of motion created by rapidly displaying a series of static images. A pivotal moment came in 1888 with Louis Le Prince's "Roundhay Garden Scene." At just 2.11 seconds long, it is recognised by the Guinness Book of...