The WFPC2 consists of three Wide Field cameras and one Planetary camera. The Wide Field
cameras have a focal ratio of f/12.9 and a field of
view of 80" x 80" with each pixel subtending 0.0996 arcsec
. The three cameras form an L-shape,
with the Planetary camera completing the square. The Planetary camera
has a focal ratio of f/28.3,
0.0455 arcsec
/pixel,
and an overall field of view of 36 arcsec
.
All four cameras have
an 800 x 800 pixel silicon CCD with a thermo-electric cooler to suppress dark current.
The WFPC2 has two readouts formats -- single pixel resolution (FULL mode) and 2x2 pixel binning
(AREA mode). All images taken through the 814 filter were taken in FULL mode while
all images taken through the 300 filter were taken in AREA mode.