Disappointed by backcountry bags. Anything new on the market?

I have gone through this entire forum going back a few years and looked at every post about hiking packs for photography. This seems to be a recurring problem. 

F-stop was a huge leap forward. The atlas bag looks good. And the Shimoda 60L is probably the BEST one out there at the moment. (agree/disagree?) 

Here is the problem:
I got into photography because I am a hiker. I do long trails. I like spending extended periods of time in the backcountry (preferably nothing less than a week). All these so called hiking bags are good for is an overnighter, maybe two. This won't do. If the weather is not cooperating at the spot you have spent weeks researching, or the cloud cover is not quite arranged the way you like it, or maybe the angle you thought was going to work in reality doesn't work, etc, You don't have time to reposition or wait out the the weather or just experience the scene in all of its variations. Instead you have to pack up and leave because your pack only holds two nights worth of food. Or you have to bring less gear (one body, one lens, and tripod). This is fine but it is not ideal. Painters don't paint with just one brush, and photographers shouldn't shoot with just one lens. My ideal kit is a body, 16-35mm, 70-200mm, and 150-600mm (or if I had the money; the 500mm f/4), There have been so many times when I take my tamron 150-600 out and the cloud cover is perfect, colors thrown all over the peaks, and I can't capture it because my amature ass only brought one lens. Or vice versa. I have my 16-35 and I happen to come across a fox, or small group of mountain goats. It would be idiotic to try to approach them with a 16-35mm, especially during rutting season. Of coarse I treasure the experience. But I am a photographer and I want the shot but I can't becuase I can't fit the photo gear I need and the camping kit in one bag. I have mastered ultra light camping so my kit is pretty light and compact. I use a tarp and bivy so my shelter weight less than 1 1/2 lbs and I use a down sleeing bag that is also around 2lbs and very compressible. But it really comes down to food. For a weeks worth of food, that requires some space. Plus, where I go, I am often required to bring a bear canister. Boo! (But it keeps the bears safe! So thats a plus!) 

Anyway, what are your thoughts? Is there anything new on the market that addresses this problem? Am I the only one with this problem? 

I'm not a serious hiker, but I've been looking at options of late.

F-Stop has larger packs than the Shimoda, and they have ICUs for whatever you need. But the real question is, camera aside, how big a pack do you need for a week? And what has to be added for photography? I think that's the real question.

Comment: if you must compromise on your equipment, then you do the best you can with what you have. That's the way photography works.

Agree that F-Stop is likely the best option, but you might go to an REI to consider options, and adapt as required for the camera stuff.

I'm in REI all the time. I currently use a 60L hiking pack because there are no photo bags that fit my needs. The problem with traditional hiking packs is that they no longer feature front entry zippers because the thinking was that if the zipper fails then there is nothing to hold the contents of the pack inside. Second, hiking packs have NEVER featured the popular rear entry that photographers have come to love. So what you end up doing is having to dig out your photo equipment from all the various other gear. Its a mess. and its a pain. The result is less photos are taken until you have gotten to camp and emptied your pack of most of the non-photography gear.

The bigger F-stop packs are way too heavy. If I am going to pay that kind of price it needs to check off more of the boxes that I am looking for. Also, 101 in packing a pack for heavy loads is to always raise the heaviest items higher up on your back without going too much higher than your shoulders. All photo packs are designed to carry your photo gear (probably the heaviest items in your pack) at the very bottom of the pack. It's like dragging a rock around on the ground rather than using your lower body to support the load. Our backs deserve better treatment than that.

Very interesting and informative. Thank you.

I would think the ICUs would allow one to put things where you want them, but I've not laid hands on one so don't have any data.

I know that I would, had I the experience and knowledge, contact F-Stop and raise those issues with them, to encourage them to design something that might be more suitable. One wonders how many packs they sell to people that end up being dissatisfied for the reasons you list?

Besides continuing to shop, at this time you have constraints. You'll have to prioritize and make choices. Not sure what else you can do. Other than maybe launch your own Kickstarter to design and manufacture a bag that addresses unmet needs?