book

Digital Ultraviolet and Infrared Photography

by Adrian Davies

October 2017

Intermediate to advanced

214 pages

6h 49m

English

Routledge

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1.1 Introduction1.2 Historical Context1.3 UV Photography1.4 IR Photography1.5 The Digital Era1.6 References
2.1 Overview2.2 Properties of Light2.3 Bibliography
3.1 Imaging Sensors3.2 Testing an Unmodified Camera3.3 Converting a Camera to UV and/or IR3.3.1 Sensor Size and Focal length3.3.2 Resolution3.3.3 Depth of Field3.3.4 ISO3.3.5 Focusing3.3.6 DIY Conversions3.3.7 Self-Cleaning Function3.3.8 Possible Fogging of IR Images3.4 Conversion Types3.4.1 Single Wavelength Conversion3.4.2 Full-Spectrum Conversion3.4.3 Visible Light Photography with a Full-Spectrum Camera3.4.4 Advantages and Disadvantages of Each Type of Conversion3.5 The Sensor Following Conversion3.6 Filters3.6.1 Filter Terminology3.6.2 Filter Transmission (Spectral Absorption) Curves3.6.3 Filter Thickness3.7 Harmonisation of the Components3.8 Resources

4.1 Overview4.2 Basic Principles4.3 The Camera4.3.1 Monochromatic Cameras4.3.2 UV Viewing Scope4.3.3 Video Recording4.4 The Lens4.4.1 Specialist UV Lenses4.4.2 ‘Accidental’ Lenses4.4.3 35mm f/3.5 Lenses4.4.4 Removing Lens Coatings4.4.5 Focus Shift4.4.6 Live View4.4.7 Pinhole Images4.5 UV-Transmitting Filters4.5.1 Baader U-filter4.5.2 Other UV-Transmitting Filters4.6 Radiation Sources for UV4.6.1 Overview4.6.2 Daylight4.6.3 Tungsten4.6.4 Gas Discharge Lamps4.6.5 Metal Halide4.6.6 Fluorescent Strip4.6.7 Light-Emitting Diode (LED)4.6.8 Electronic Flash4.7 Case Study: UV Reflectance of Flower4.8 Lighting the Subject4.9 Open Flash Technique4.10 Focus Stacking4.11 Tethered Shooting4.12 Image Processing and Colour4.12.1 White Balance Targets4.13 Some Applications of UV-Reflected Photography4.13.1 Medical Photography4.13.2 Sunscreens4.13.3 Forensic Photography4.13.4 Botany4.13.5 Entomology4.13.6 Spider’s Web4.13.7 Bird Vision4.13.8 UV Astrophotography4.13.9 Other Areas4.14 References4.15 Bibliography4.16 Resources
5.1 Overview5.1.1 Atoms5.2 Stokes’ Law5.3 Basic Principles5.3.1 Visible Light Leakage5.3.2 Background5.3.3 Exposure5.4 Lighting5.4.1 UV Sources for Fluorescence Photography5.4.2 Gas Discharge Lamps5.4.3 Fluorescent Strip5.4.4 Laser5.4.5 Light-Emitting Diode5.4.6 Electronic Flash5.5 Control Images5.6 Case Study: Photographing Mineral Fluorescence5.7 Some Applications of UV Fluorescence Photography5.7.1 Mineralogy5.7.2 Amber5.7.3 Medical5.7.4 Fluorescein Fluorescence5.7.5 Hygiene5.7.6 Crack Detection in Metal5.7.7 Art Research and Analysis5.7.8 Security5.7.9 Forensic5.7.10 Botany5.7.11 Wood5.7.12 Lichens5.7.13 Corals and Other Underwater Subjects5.7.14 Fruit5.7.15 Mould on Citrus fruits5.7.16 Other Moulds5.7.17 Quinine5.7.18 Zoology5.7.19 Fluorescence Microscopy5.7.20 Eggs5.7.21 Uranium Glass5.7.22 Philately5.7.23 Creative5.8 References5.9 Bibliography
6.1 Overview6.2 Analogue Infrared Photography6.2.1 False Colour IR Film6.2.2 Simulation of IR Colour Film with Digital Cameras6.3 The Infrared Spectrum6.4 Basic Principles of IR Photography6.5 Lens Filters6.6 Lenses and Hot spots6.7 Resolution in IR Photography6.8 Focusing6.9 Sources of Infrared6.9.1 Daylight6.9.2 Halogen6.9.3 Fluorescent6.9.4 Electronic Flash6.9.5 Incandescent6.9.6 Light-Emitting Diode (LED)6.10 Exposure and Metering6.11 ISO6.12 Control Images6.13 White Balance6.13.1 Adobe DNG Profile Editor6.14 Video Recording6.15 Different Subjects6.15.1 Foliage6.15.2 Human Skin6.15.3 Fabric6.15.4 Water6.15.5 The Sky and Clouds6.15.6 Rock6.15.7 Glass6.16 IR Landscape Photography6.16.1 High Dynamic Range Imaging (HDR)6.16.2 Haze Penetration in Landscapes6.16.3 Halation6.17 False (Faux) Colour IR6.17.1 Technique for Channel Swapping6.18 Portraiture6.19 Weddings6.20 Art6.21 Sport6.22 Wildlife Observation and Recording6.22.1 IR Recording6.22.2 Practical Operation6.23 Surveillance and Security Cameras6.24 Forensic Imaging6.25 Thermal Imaging6.26 IR Astrophotography6.27 IR and Drones6.28 IR Luminescence (Fluorescence) Photography6.28.1 Basic Principles6.29 References6.30 Bibliography
7.1 Overview7.2 Cultural Heritage7.3 UV7.3.1 Other Types of Artwork7.3.2 Paper7.3.3 Textiles7.3.4 Marble, Jade, Ivory7.4 Infrared7.4.1 Foxing7.4.2 IR Luminescence7.5 Multispectral Imaging7.5.1 Case Study: The Archimedes Palimpsest7.6 Forensic Photography7.6.1 Lasers7.6.2 Light-Emitting Diode7.6.3 Visualisation of Finger Marks7.6.4 Visualisation of Shoe Marks7.6.5 Detection of Blood7.6.6 Ink7.6.7 Paint7.6.8 Other Stains7.7 Medical Photography7.8 Multispectral Imaging - Biological Subjects7.8.1 Image] Software7.9 References7.10 Bibliography7.11 Resources
8.1 Overview8.2 Image Processing Programs8.3 Computer Hardware8.3.1 The Computer8.3.2 The Monitor8.4 Image Size8.5 Sharpening Images8.6 Image File Formats8.6.1 JPEG Versus Raw Files8.6.2 TIFF Files8.6.3 DNG File Format8.7 Bit Depth8.8 Filing and Archiving8.8.1 Naming and Keywording8.9 Image Modes8.10 Basic Colour Theory8.11 Adobe Camera Raw8.12 Image Enhancement in Photoshop8.13 Histogram8.14 The Tone Curve (‘Curves’)8.15 Selections8.16 Noise Reduction8.17 Retouching8.18 Layers8.19 ‘Creative’ Processing8.20 Saving8.21 Creating a Photoshop Action8.22 Making Composites8.23 Bibliography

Content preview from Digital Ultraviolet and Infrared Photography

Chapter 8

Processing UV and IR Images

8.1 Overview

This book is concerned with UV and IR photography, not digital image processing – there are far better and more comprehensive books available, and a couple are listed in the Resources section at the end of this book. However, most, if not all images produced by digital cameras will require some form of image processing, and it was felt that a working knowledge of image processing and its potential would be useful, particularly that related to UV and IR images, which are often very different in character from conventional images.

A whole new terminology has evolved, and is continuing to evolve, with digital photography. The term image processing can be applied to any adjustment made to the ...

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Digital Infrared Photography Photo Workshop

Publisher Resources

ISBN: 9781315515076

Digital Ultraviolet and Infrared Photography

by Adrian Davies

Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Digital Infrared Photography Photo Workshop

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Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.