Next: Signal to noise
Up: Choice of Focal
Previous: Optical performance
The WHT prime focus has the following advantages over INT
prime:-
- The collecting area is a factor of 2.8 greater.
- With a CCD with 24 micron pixels the sampling of the image on the WHT
will be appropriate for seeing of about 0.8 arcsec, which is the median
seeing in summer, wheras on the INT in the good seeing the images will
be undersampled.
Tue Aug 15 16:42:46 BST 1995