![](https://coimages.sciencemuseumgroup.org.uk/519/997/large_thumbnail_1990_5036_5040__0001_.jpg)
Ilford Stop Wedge Screen Gradation 0
- maker:
- Ilford Limited
![Ilford Stop Wedge Screen Gradation 0](https://coimages.sciencemuseumgroup.org.uk/531/73/medium_smg00222183.jpg)
Ilford stop wedge screen gradation 0.16 per stop 9" x 7". Ilford (continuous) wedge screen gradation 0.16 per inch, 8 1/2" x 7 1/2". One example of plate characteristic curve obtained by crossed wedge method. One example of use of stop wedge in testing photographic papers.
Details
- Category:
- Photographic Technology
- Object Number:
- 1927-1982
- Measurements:
-
overall: 40 mm x 270 mm x 216 mm, 1.288 kg
- type:
- stop wedge screen
- credit:
- Ilford Limited