I currently have two Osprey packs that I use for backpacking, both of which I LOVE. I use a Talon 44 for day hikes (its a bit large for this but works fine) and shorter trips and an Ariel 55 for longer trips. I got a Six Moons Designs Traveler at one point but returned it because I felt I needed a beefier pack with a more substantial frame. I often carry photography equipment with me on trips, and I find that this is really uncomfortable without a good frame due to the rigid and bulky nature of those items.
I'm planning to thru hike the Long Trail (265 miles in Vermont) this summer/early fall and was looking at getting a larger pack, probably around 70L. I want to do the trip without a resupply, and go no cook to save on stove and fuel weight (I'm more of a snacker anyway). I will also probably want to bring some basic camera equipment, an estimated 6-10lbs of camera, lens, extra batteries, tripod, and ballhead.
What are your recommendations for a lighter weight, full frame, fully featured pack? I'm not looking for something ultralite, but rather a compromise between weight, features, and durability. I was looking at the Arc'Teryx Altra 75, but am not sure how I feel about the side loaded hydration sleeve.
My current options: Osprey Ariel 65 or Ariel 75, Arc'Teryx Altra 75, anything else?