Could someone please explain the difference between these chipsets, and does any chipset offer advantage over the other? Also why is ExviewHAD CCD slightly more expensive than the superHAD, and is it worth spending the extra couple quid on ExviewHAD? Thanks for feedback in advance

ExviewHAD CCD is ~ 2 time better / more sensitive than superHAD
so if you need low light ex sony microlens is better

http://products.sel.sony.com/semi/ccd.html

dusan