@Harvey Melvin Richards was kind enough to point out that i had promised a report of some kind comparing two of the Mindshift Gear Rotation backpacks - the Panorama and the Horizon - that I own. I had (have) the Panorama and love it for its excellent build and it's defining feature - the rotation hip belt that allowed quick access to your quick camera. These backpacks were obviously built by people who shoot themselves and have probably been frustrated by the other available backpacks on the market. I used it as my carry on bag (and of course hiking) for my Kauai trip and a few other smaller outings. It performed really well in that it allowed me to pack the bag to my liking and then I was up and running. I was less than thrilled with two things on this particular model: 1. Small size, but that's not really a fault of the backpack. I knew going on how small it was as far as capacity, but till I had it my hands and started packing it, I didn't realize how small it is. 2. Water compartment - on one side, you can slide a Camelbak style bladder in to a zippered compartment for water on the go. Two issues - a) it made the pack a wee bit unbalanced, not enough to bother me, but enough to realize it when I put the pack on the first time so I had to adjust the straps and then forgot about it. b) Small, small, small compartment. It was supposed to be able to take two litre bladders, but I just couldn't get it to fit - the best I squeezed in there was a 2 litre bladder with 1 litre water, but it would pinch in spots and stop water flow. Still I fit the following into the backpack: Main compartment: - A rain jacket - Lens Switchcase (to organize flash, batteries, charger, memory cards etc.) - Rain cover for the backpack itself - Some snacks - A 750ml water bottle because the bladder compartment was just a pain to deal with - A flashlight, and two headlamps in the top pouch and their batteries on the outside Hip belt: - E-M1 with RRS base and L plate - 12-40 mounted, hood reversed - One spare SD card - 60mm macro - Spacer for remote release cable relief - Remote release - Bulb for blowing dust off - Case of polarizing filter on the 12-40 - Nodal slide - Arca-Swiss compatible clamp for the slide On the outside, I was able to strap a tripod to it. All of that was a very, very tight squeeze, and occasionally, I had to make decisions - do I take my light jacket so I don't get cold, or the rain jacket since it might rain? When Mindshift Gear announced the Horizon, I was thrilled. I had to justify it, and used my birthday as an excuse. I went to Munich recently, I used the Horizon and what a difference! I used it as my carry on bag and had the following in the main compartment: - A behemoth work 15" laptop with an extended battery pack (think almost two MacBook Pro 15" stacked) - Lens Switchcase (to organize flash, batteries, charger, memory cards etc.) - Rain cover for the backpack itself - Tripod suspension kit - A full change of clothes (underwear, an undershirt, a polo t-shirt, socks and a pair of jeans) - A flashlight, and two headlamps in the top pouch and their batteries on the outside - A Filter Hive Mini in the top pouch Hip belt: - E-M1 with RRS base and L plate - 12-40 mounted, hood reversed - One spare SD card - 15mm PL with hood, 75mm f1.8 with hood - Spacer for remote release cable relief - Remote release - Bulb for blowing dust off - Nodal slide - Arca-Swiss compatible clamp for the slide - Passport, and other important travel documents - Cash It also has a totally useful water compartment with the same design drawback (one sided) but at least it is function. It has a zippered pouch in the front that I stuffed my rain jacket and a Polartec fleece jacket into. The downside to the Horizon? Not much. Once I was set up in my hotel and I wanted to take just a couple small things and my camera and associated items, the Horizon was just too large. I wished for the Panorama in those cases. Both bags have excellent build quality and recommend them without any reservations whatsoever. Depending on the trip, I have a use for both bags. If my wife and I are both going somewhere, my wife will use the Panorama and I'll use the Horizon. I realize this being a photography forum, I should probably provide pictures of the two bags and their contents, but hey, you can't it all. Questions, comments welcome.