|
Photographic Plates were in use at INT
and JKT since 1984. However, they were quickly replaced
as common detectors by the CCDs and IPCS devices due to their higher
versatility and efficiency. Only the photographic Wide Field Camera at the
JKT continued to
use the plates until it was decommissioned in May 1996.
The emulsions used at ING were coated on to 356mm
square glass, 1mm thick. The typical emulsions available were
the following Eastman-Kodak types:
|
Emulsion | Grain type | Spectral sensitivity |
|---|
| IIa-O | medium | uv to 500nm |
| IIIa-J | fine | uv to 540nm |
| IIa-D | medium | uv to 650nm |
| IIIa-F | fine | uv to 690nm |
|
