Summary: Easily holds my Canon digital rebel XT with 70-300 IS in the center compartment, even with a hood attached. Add my 17-55 f2.8 IS, a 50mm f1.8, flash and some cleaning supplies and there is still plenty of room. There are extra pockets for cards, batteries, etc. I like the easy access for the center compartment. You can also access items around the outside of the main compartment by only unzipping one side of the pack. The backpack is sturdy and well made.
Summary: I used it in 10 days anthropological research in a woods. It was sunny and rainy. I have been taking pictures in a swamp and with no dry peace of land around. Additional moisture resistant cover bag for it appeared to be very useful. I put in this bag Pentax K20D, two lenses, flash unit, batteries and charger. Everything fits well. The bag is stiff enough and good protection for my gear. I would miss one good pocket in it, but still, I like it.
Pros: Comfortable, Easily Accessible Equipment, Strong Construction
Summary: I use the Kata R-103 while hiking and traveling. The pack has plenty of room for my camera body, grip, flash, four lenses, and various accessories (cable release, diffuser, batteries, memory cards, etc...). The pack is built like a tank. I especially enjoy the exterior mount for my tripod, the ease of which - as a land and cityscape photographer - cannot be over emphasized.
Pros: Comfortable, Easily Accessible Equipment, Eh awesome, Strong Construction
Summary: I needed to lug some gear around Southwest China, mostly day trips into villages. Being a not-too-fit 58 year old dame, I found this sack fit well, and I was able to get around in the roughened lanes and hill paths. I filled the pack with my Canon EOS 5D, Speedlite 580EX II, EF 16-35mm F/2.8L II USM and EF 70-200mm f/2.8L IS USM lenses USM lenses, along with an Epson-P5000 and extra batteries, chargers, cords, etc.
Pros: Adjustable Harness, Comfortable, Easily Accessible Equipment, Strong Construction
Summary: I am a photojournalist for a daily newspaper and for thepast 21 months this has been my primary daily camera bag.Some of the padding inserts have loosened a little, butoverall this bag is stellar. I've beaten the crud out ofthis bag and it's virtually as good as new, just faded. Thiscompany also makes bullet proof vests and it shows in the bag. It is also more sleek & stylish than the fat boxy bags othercompanies make.
Summary: I bought this bag for trekking in Alaska. I was looking forsomething comfortable and water proof that could carry myNikon D70, middle zoom (300), Long zoom (500), and wideangle as well as charger, filter sets, memory cards, andtripod. This bag is very well designed for the purpose. The quick access flap in the back allows me to get at thecamera quickly without opening the entire bag and exposingeverything to the elements.