Practical backpack for amateur photographers

I bought the element Mantona outdoor backpack for hikes and excursions, but also for city breaks.
He is well-made, comfortable to wear (and carrier belts can be optimally adapted) and has an integrated rain cover. For me, he is the ideal companion, because he one hand optimally protect my camera and I have access (side) and on the other hand still offers enough space for additional luggage quickly.

I'm usually with the Nikon D5000 with two lenses (8-55 mm and 55-200 mm) as well as some accessories (batteries, memory cards, cleaning cloths, camera rain cover) go. This equipment fits easily into the camera bag. For the last trip I had a Nikon D800E with 24mm lens case. Here the place was a bit tight, but (can be attached with Velcro) with some trial and error, and thanks to the two adjustable "enclosures" I also found a solution for it.
The bag can be easily and quickly removed from the backpack and used separately, and even has its own rain protection. Very convenient!

Between the upper and lower compartment, there is a separation. This does not slide all the contents of the upper compartment downwards when the camera bag is removed. And if time is not a camera with me, the separation can be removed by zipper, making the Mantona becomes a normal backpack.

The upper compartment provides space for provisions (in my case, packed in a box approximately 20 x 15 x 6 cm), clothing (fleece jacket, gloves, scarf, hat). Since I had no notebook I stowed in this subject my raincoat. The rather small tripod and a small bottle of water found in the outer side pocket. There are 5 smaller compartments. Two of the abdomen belts (Smartphone), one in the upper compartment (for smaller items, incl. Practical key ring), one in the lid (perfect for my little first-aid kit) and one behind. This I have not used, but would certainly be for maps, guides etc. practical. The backpack was therefore not fully. In addition, there are various grinding and belts, which can be attached to additional material.