I wouldn't leave the poles at home.... if you are carying all the gear you may need them for balance... or saving the knees on the way downhill...
When I pack for summer trips it is:
Ultralight tent, ultralight down sleeping bag, 3/4 length thermarest...
rainjacket and pants, fleece pullover, spare socks and underwear.....
MSR stove and one pot, a cup, a spoon, and a pair of chopsticks. (I eat out of the pot)
Dehydrated food, water filter, and 3 litre camelback
assorted stuff like first aid kit, flashlight, etc etc.
60D camera with 18-200 lens, sometimes a 400f5.6 if conditions permit.
It is the food that is the big weight savings. I prepare my food at home and dehydrate it. While hiking all I have to do is boil water, drop in the food, stir it, and turn the stove off. Let it sit for 10 minutes, bring it back to a boil, and eat. You use a minimumum amount of fuel (more weight savings) cooking is quick and simple, no burnt mess on pots... and you don't need lots of kitchen utensils to prepare it... just a pair of chopsticks to stir with.
WOW! A minimalist...like me!..I basically carry all the same camping gear except I skipp the pot and carry only one titanium cup..(eat out of the food packets),plus solar charger for my iPod mini. Lol!
I have a complete Canon kit...but that all stays at home especially when I go out for more than an overnight. I bring a Micro Four Thirds kit with me. ...not even my Olympus OMD (too heavy)...but my Panasonic GX1 (really light weight!), a viewfinder, with the best primes....there is nothing worse than being out on a three or four-nighter with too much weight on your back...no fun! I am anxiously awaiting a good quality long tele prime from Oly or Pany to bump the quality up on the long end a little...but everything in that kit is great and makes an incredibly great compromise to help save this old man's weary bones! :-)