Details of exhibit
- Exhibition:
- 1911 Fifty-sixth Annual Exhibition of the Royal Photographic Society of Great Britain
- Exhibit title:
- Sunshine Index
- Exhibitor:
- D. Berlin
- Exhibitor 2:
- L. J. Berlin
- Section:
- V. Scientific Photography and Processes of Reproduction
- Exhibit No.:
- 696
- Description:
- This enables one to determine, by two simple adjustments, and with extreme accuracy, the time of day at which the sun will shine (or will not shine) in any given direction and in any month (between latitudes N. 40° and 60°).
It can be used either on the spot by means of a compass, or at any time beforehand on a map or plan.
The sunrise and sunset lines show that in many directions the sun will shine only in certain months.
Uses to which the "Index" has been put:-
(a) To determine the time the sun will shine across a building (architectural photography).
(b) To determine the times at which the sun will not shine in a garden (for group and portrait work).
(c) To determine the times of day and year at which the sun will shine into a studio if built with other than north light.
(d) To determine the times of day and year at which the sun will shine on certain windows which it was desired to fit with:-
1. Safelights.
2. Daylight enlarger. - Exhibit type:
- Photograph
- Process:
- [Not Listed] ()
- Award:
- none
