The Carbon Process
The Carbon Process When A Bichromate Salt Is Mixed With An Organic Substance Soluble In Water, Like Gelatine, The Latter Has A Tendency To Absorb Oxygen From The Former, And Also To Become Insoluble ; This Action Is Enormously Accelerated By Exposure To Light. The Carbon Process, And Various Other ...
The Chemical Theory Of
The Chemical Theory Of Exposure And Development Not Lightly Have We Approached The Task Of Writing An Account Of The Chemical Changes Involved During The Exposure And Subsequent Development Of The Ordinary Dry Plate. At The Very Start We Are Baffled. The Latent Image Is Invisible, And Though, Without Doubt, ...
The Color Salt
The Color Salt If We Trace Back The Origin Of Almost Any Great Discovery Or Invention, We Find That It Was Heralded By A Whole Series Of "dreamers Of Dreams." With The Dream Came The Irre Sistible Impulse To Set To Work And Make It A Reality. Each Would-be Discoverer ...
The Dark Room
The Dark Room Photography Is Perhaps Unique Among The Sciences For The Variety And Many Degrees Of The Votaries It Attracts, From The Simple Amateur Who Is Content To Develop And Print Two Or Three Dozen Plates A Year, To The Serious Worker Who Devotes Many Hours Each Day And ...
The Gum Bichromate Process
The Gum-bichromate Process Quot Homines Tot Sententi " Is Apparently The Motto Of All Who Adopt And Recommend This Very Beautiful Process. It Is Almost Outside The Range Of Ordinary Photography, Beyond The Fact That It Commences With A Negative From Which An Image Is Printed In Bichromated Gum Or ...
The Laws Of Pictorial
The Laws Of Pictorial Composition Although We Are Concerned In This Chapter Entirely With What Are Generally Spoken Of As The " Laws " Of Composition, We Must Warn The Reader, At The Very Beginning, Against The Danger Of Overestimating Their Importance. A Short Time Ago, At The Conclusion Of ...
The Lippmann Process In
The Lippmann Process In Practice In The Present State Of The Screen Colour Process, It Is Hardly Advisable For Us To Give Practical Directions. Improvements Are Introduced Almost Daily, And The Directions Issued By The Manufacturers Of The Various Plates Are So Complete, That Any Supplementary Advice On Our Part ...
The Optics Of Photography
The Optics Of Photography The Lens Is The Only Part Of A Camera Which A Person Of Average Mechanical Skill Cannot Make For Himself. A Good Carpenter Can Make The Camera Body, Dark Slides, And Stand, And Anybody With A Taste For Mechanism Can Construct Some Kind Of Shutter. Every ...
The Pinhole Camera
The Pinhole Camera Just As Nature Sometimes Indulges In A Reversion To The Primitive Type, So Art Finds Renewed Vitality By A Return To First Principles. And So Photography, Which Is Neither Nature Nor Art, But A Hybridised Pursuit, May Revert Back To The Original Camera Of Some Three Centuries ...
The Wet Plate Process
The Wet-plate Process The Glass First Essential For The Glass Support Is That It Must Be Flat, Or It Will Not Sustain The Heavy Pressure Of The Printing Frame, Possibly In Contact With A Metal Engraving Plate. Sheet Glass Is Often Slightly Curved, And Therefore Only Suitable For Very Small ...
Three Color Negatives
Three-color Negatives Although The Results Of The Screen Processes Are Often Of Exceeding Beauty, And Are In Some Ways Far In Advance Of Any Other Method Of Automatically Recording The Colours Of Nature, They Have Not Hitherto Been Applied Directly To Re Production On Paper. For This We Must Still ...
Time Development
Time Development In Our Last Chapter We Stated That Most Of The Advantages Formerly Attributed To Development In The Open Dish Were Now Proved To Be Illusory. For A Clear Understanding Of The System Which Is Taking Its Place With A Considerable Body Of Photographers, We Shall Have To Recapitulate ...