[tom00_uk]

I have a 5 month working trip lined up to the waters of the southern ocean, between antarctica and south georgia.

while there i want to capture the seals, penguins, albatross and icebergs etc i come across,

with the extreme temperatures that are going to be faced from leaving the bridge and going out onto the deck would a DSLR or a bridge camera be better suited to the frequent temperature changes?

I'm expecting the gear to last but that said its going to be used daily so there is a chance it will fail and so im looking to not spend silly money, esp when in such a rough patch of sea it might get damaged.

Not sure if im flying out on the civilian route via Santiago or the RAF flight to the Falklands, if the latter then a bigger luggage allowance

what extras would be needed to ensure the best images to my abilities, with the bright conditions im guessing a lens filter will be required?

has any one any top tips on taking pictures of iceburgs etc, since i want to show the detail and not just a white mass next to the ship?