Answers, 553 Q&A | Forensic Certification
Mega Guide 2025/2026.
Camera Obscura
First pinhole camera used by early scientists.
Girolamo Cardano
Added lens to camera obscura in 1550.
Hassan bin al Haitham
Arab scholar who wrote about camera obscura.
Diaphragm Invention
Created in 1568 by Daniele Barbaro.
Angelo Sala
Observed sunlight darkening silver nitrate in 1614.
Johann Heinrich Schulze
Proved silver salts darken with light exposure in 1725.
Jean Hellot
First to use the term 'Photography' in 1737.
Photography Definition
Means 'writing with light' as coined by Hellot.
Evolution of Camera
Three key developments led to modern cameras.
Pinhole Camera
Early device for observing light and images.
Curved Mirrors Addition
Improved image production in 1558 camera design.
Silver Nitrate
Chemical that darkens when exposed to light.
,Carl Wilhelm Scheele
Discovered light reduces silver chloride to black.
Thomas Wedgwood
First attempted photography with camera obscura in 1795.
Panorama
Wide field paintings in circular buildings.
Robert Barker
Created first circular panorama building in 1792.
Invisible Infrared
Light discovered by Sir William Herschel in 1800.
Joseph Niepce
Credited as inventor of photography in 1826.
Hydrosulfite of soda
Dissolves silver salts, fixing photographic images.
John Herschel
Discovered hydrosulfite of soda in 1819.
Photogrammetry
Mathematical study of photographic measurements, started in 1822.
Louis Daguerre
Partnered with Niepce to advance photography.
Fox Talbot
Produced first photographic negative in 1835.
Daguerreotype
First successful photographic process announced in 1839.
Calotype
Photographic process patented by Talbot in 1841.
Noel Lerebor
Used Daguerreotypes for newspaper illustrations in 1839.
Wolcott and Johnson
, Opened first portrait studio in NYC in 1840.
Aime Laussedat
Father of Photogrammetry, created topographic maps.
Wet-Plate Process
Developed by Frederick Scott Archer in 1851.
UV Fluorescence
Discovered by Sir George G. Stokes in 1852.
Ambrotype
Photographic process invented by J. A. Cutting in 1854.
Carte-de-Visite
Invented by Disderi, a popular photographic format.
Tintype
Also known as ferrotype, invented by Hamilton Smith.
Gaspar Felix Tournachon
First aerial photograph taken in 1858.
Luco v. US
Supreme Court case on photograph evidence in 1859.
Stereophotography
Popular method using stereo prints in 1860.
Color Photography
Developed by Maxwell and Sutton in 1861.
Orthochromatic Film
Film insensitive to red light, widely used.
Mathew Beady
Covered American Civil War using portrait profits.
Photogoniometer
Invented by Porro to eliminate lens distortion.
Crime Scene Photography
Replaced sketches; first used in 1867.