Nice trio Colin.
You've reminded me that that polarizer also drops light by two stops, similar to an ND filter.
Has any '707 users tried night time shots of aircraft landing/taking off?
I've been trying, but with variable results...
Those extra two stops might come in handy.
...and the wide angle? I don't get close enough to use one.
Also, interesting to see Brian has used full digital zoom.
I occasionally use part of the digital zoom without any noticeable deterioration to the picture. Once manipulated and resized to 1024px, it's fine.
It can take you way beyond the 323mm equivalent.