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...

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...

Mass Media: Platforms and Content

 Mass Media today is interplay between technological infrastructure and creative expressions. Mass media, defined as channels of communication designed to reach large audiences, has undergone profound transformation in recent decades. What began as predominantly print-based communication has expanded into a multifaceted ecosystem encompassing visual, audio, and interactive modes of engagement. This essay explores the dialectical relationship between media platforms and content, arguing that the two elements exist in dynamic tension—with platforms shaping content possibilities while content innovations drive platform evolution. As Marshall McLuhan famously observed, "the medium is the message," suggesting that the vehicle of communication fundamentally alters how we perceive and process information. This principle remains relevant as we navigate an increasingly fragmented media landscape characterised by both institutional and user-generated content. The Architecture of Mass M...

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...

Pope Francis—Fully Human and Fully Pope

 Pope Francis led the Church with the authority and obligation of a co-pilgrim. He became the conscience of the Church. Long before Pope Francis fell ill and the Catholic world began talking about what is next and who is next; while Pope Francis was still making waves of change in the Catholic and non-Catholic world, I heard men of the Church judging him, saying he needed to be a little more careful, tactful, and diplomatic; take time to speak and act—meaning to be conservative and moderate like the Church almost always has been. The pressure on Pope Francis was that he must restrain from saying things that would make him and the Church look weak, vulnerable, and human. I was of the opinion that the authority and influence of a Pope, the vicar of Jesus, who sits in a pompous cathedra is to be enduring even at the point of embracing vulnerabilities, and not run away; be comfortable with others and varied perspectives; face discomfort, sweat, anger; laugh at power; and 'have the smel...

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...

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...