Hi all.
I'm holidaying for 6 weeks in the US later this year (Oct/Nov).
My travels will include the Mojave/Grand Canyon/Monument Valley and surrounding desert regions.
I'll be travelling with my 40D and various L series lenses, all housed in a good quality Lowepro bag.
I'm just a little concerned about dust and sand.
Is my gear resistant enough (weather sealing) or will I need extra protection? If so...what do you recommend?

