Table 2:
Main WFCAM specifications.
| Item |
Specification |
Units and notes |
| Detectors |
4 Rockwell Hawaii-2 |
PACE HgCdTe devices operating from 0.8 to 2.5  m |
| Focal plane non-coplanarity |
50 |
Microns. Peak-to-valley |
| Signal digitization |
16 |
Bits |
| Number of parallel channels |
128 (32 per detector) |
In parallel, with synchronized clocks |
| Available read modes |
correlated double sampling, |
|
| |
fowler sampling, |
|
| |
up-the-slope sampling |
|
| Pixel scale |
0.40 
0.01 |
Arcsec |
| Single-shot field of view |
0.21 |
Square degrees |
2 2 tile field of view |
0.79 |
Square degrees |
| Image Quality(MTF) |
>0.5 |
At a spatial frequency of 1.2 cycles per arcsec |
| Image Quality(encircled energy) |
>80% |
Within a diameter of 1.2 arcsec |
| Autoguider CCD |
E2V 47-10 |
Backthinned non-inverted mode |
| |
|
1056
1027 pixels |
| Autoguider window sample rate |
20-100 |
Hz |