No. 1. 20 min. exposure to a dull sky. " 2. 10 " " " bright sunlight. " 3. 20 " " " " " 4. 30 " " " "
The results are arranged in Tables VI and VII.
Table VII contains results of different exposures under sunlight conditions.
20 Minutes’ Exposure on White Sensitized Papers.
-----+-----------------+-----------------+------------------ Pap-| | | ers | OPEN SCREEN. | RED SCREEN. | ORANGE SCREEN. | | | -----+-----------------+-----------------+------------------ | Blk. Or. Red. | Blk. Or. Yel. | Blk. Or. Red. 1 | 7·8 4·2 6·0 | 2·0 4·8 3·0 | ---- ·3 ·2 | | Red. | 2 | 6·0 5·0 5·5 | 1·9 3·1 ·4 | ---- ---- ---- | | Yel. | 3 | 7·8 3·2 7·0 | 2·7 4·7 3·0 | ---- ---- ---- | | Red. | 4 | 7·2 4·3 6·0 | 2·2 3·2 ·2 | ---- ---- ---- 5 | 5·8 7·2 4·0 | 1·9 2·3 ·8 | ---- ---- ---- 6 | 5·6 7·4 4·0 | 1·8 2·6 6 | ---- ---- ---- -----+-----------------+-----------------+------------------
-----+-----------------+-----------------+-----------------+------------------ Pap-| | | | ers | YELLOW SCREEN. | GREEN SCREEN. | BLUE SCREEN. | VIOLET SCREEN. | | | | -----+-----------------+-----------------+-----------------+------------------ | Blk. Or. Red. | Blk. Or. Red. | Blk. Or. Red. | Blk. Or. Red. 1 | 2·0 3·0 1·6 | ---- ---- ---- | 3·9 7·6 3·5 | ·2 ·4 1·0 | | | Yel. | 2 | ·4 ·4 1·0 | ---- ---- ---- | 4·3 9·2 4·5 | ·2 ·8 ·8 | | | Red. | 3 | 1·2 ·5 ·8 | ---- ---- ---- | 3·7 9·3 2·0 | ·7 ·6 ·9 | | | Yel. | 4 | 1·2 ·1 1·2 | ---- ---- ---- | 3·4 1·1 1·0 | ·7 ·7 ·9 5 | 1·0 ·3 ·3 | ---- ---- ---- | 3·3 8·7 2·0 | ·3 ·3 1·2 | | | Red. | 6 | ·2 ·3 ·4 | ---- ---- ---- | 3·6 8·9 1·5 | ·4 ·2 ·9 -----+-----------------+-----------------+-----------------+------------------
10 Minutes’ Exposure on White Sensitized Papers.
---+-------------+---- --------+--------------+--------------- NO.| OPEN SCREEN.| RED SCREEN. |ORANGE SCREEN.|YELLOW SCREEN. ---+-------------+-------------+--------------+--------------- |Blk. Or. Red.|Blk. Or. Yel.|Blk. Or. Red.|Blk. Or. Red. 1 | 8·4 1·6 6·5|2·8 6·8 1·9| ·34 1·41 ·55| 2·3 7·1 -- 2 | 8·2 2·0 6·3|2·7 4·7 3·6|-- -- -- | ·8 1·9 ·70 3 | 7·8 2·2 7·5|2·4 7·0 4·1|-- -- -- | 2·4 4·2 ·80 4 | 7·8 1·6 8·6|2·4 5·4 3·2|-- -- -- | 1·5 2·3 ·70 | | | | 5 | 6·4 4·4 7·7|2·4 5·2 3·0|-- -- -- | ·9 1·8 ·80 6 | 5·2 6·3 5·5|2·3 5·1 3·0|-- -- -- | 1·1 2·0 ·80