INGRID (Isaac Newton Group Red
Imaging Device) is a near infrared
camera dedicated to high spatial resolution imaging. Located
at the Nasmyth focus of the
4.2m
WHT, the camera is permanently attached to one of the science ports
of
the ING's adaptive optics (AO) system
NAOMI.
The 1k x 1k Hawaii detector has a pixel scale of 0.04"/pixel, yielding
a total field of view of about 40" x 40". Prospective applicants should
refer to the
instrument
overview, the
planning observations
page and the latest NAOMI+INGRID
performance summary.
The ING also offers INGRID in conjunction with the AO coronograph
OSCA.
Please
note that INGRID is no longer available at the Cassegrain focus.
If you are interested in observing a larger field of view than INGRID
provides (although without AO correction), the ING also offers the
infrared
imager and spectrograph LIRIS,
which has a field of view of
4.27' x 4.27' in imaging mode.

During winter 2003-2004, INGRID
underwent a major re-engineering program to improve the reliability,
positional repeatability and accuracy of its mechanism control system. This picture shows the pupil wheel, with
the two filter wheels behind it, during the re-engineering work. The
light enters
through the top position. (Click on image to
enlarge.)
Picture credit:
Mischa Schirmer (ING)