Digital Photography Principles

This is an informational page and it contains a variety of interesting photography-related articles.

The first article focuses on optical and electronical principles of modern digital single-lens reflex (DSLR) cameras. The second article describes the technology used in camera lenses and related mechanics.

The third article describes how technical know-how can be combined with general rules of photography. My experience has shown that understanding technical principles of DSLRs really make a huge difference on how your photos turn out. The article also offers tips and tutorials on how to achieve professional results.

The Nature of Light
Image Formation
Camera Systems

1 – DSLR Principles
Internal Structures
Viewfinder Optics
The Metering Sensor
The Image Sensor
The Shutter
Focusing System

2 – Camera Lens Principles

3 – Photography in Practice
Light Intensity and Dynamic Range
High Dynamic Range Photography


I want to express my gratitude to the following supporting experts and photographers

Mr. Pierre Toscani –

Mr. Roger N. Clark –

Mr. James Murray –

Professor M.R. Shenoy – Optoelectronics – Indian Institute of Technology Delhi

Mr. Georg Michna – Master of Science – Physics