Exhibit no. | Exhibitor | Exhibit title | Section | Picture | Catalogue |
[890] |
Wratten & Wainwright, Ltd.
|
Specimens of filters for three-colour photography |
Photographic Apparatus and Material |
|
catalogue page |
[890] |
Wratten & Wainwright, Ltd.
|
Specimens of "K" filters for orthochromatic photography |
Photographic Apparatus and Material |
|
catalogue page |
[890] |
Wratten & Wainwright, Ltd.
|
Specimens of special filters for photomicrography |
Photographic Apparatus and Material |
|
catalogue page |
[890] |
Wratten & Wainwright, Ltd.
|
Examples of dyed gelatine used in the manufacture of various special filters with their spectral cuts indicated |
Photographic Apparatus and Material |
|
catalogue page |
[890] |
Wratten & Wainwright, Ltd.
|
Photographs to show the advantage of the use of panchromatic plates and "K" screens |
Photographic Apparatus and Material |
|
catalogue page |
[890] |
Wratten & Wainwright, Ltd.
|
X-ray photographs on the new Wratten X-ray plate |
Photographic Apparatus and Material |
|
catalogue page |
[890] |
Wratten & Wainwright, Ltd.
|
Transparency showing by means of "wedge" spectra the differing ranges of sensitiveness of the various plates issued by the firm |
Photographic Apparatus and Material |
|
catalogue page |
[890] |
Wratten & Wainwright, Ltd.
|
Transparency showing the various renderings of a series of colour strips: (a) On a Panchromatic plate with six times screen; (b) on an Orthochromatic plate with six times screen; (c) on an ordinary plate |
Photographic Apparatus and Material |
|
catalogue page |
[890] |
Wratten & Wainwright, Ltd.
|
In the centre panel a wheel, made to rotate at will, containing segments alternately red and green, which, combined by the rapid motion, produce in the eye the sensation yellow |
Photographic Apparatus and Material |
|
catalogue page |