The somewhat different Fotorucksack

The CULLMANN Sport Pack 400 will combine sports and hobby together. Apart from the fact that for most sports is probably also a hobby, I find the idea great.
For me as a nature photographer who is also like to go by bike really fits the bill.
But the question is: How safe is my equipment in such outdoor packaging and what all fits into the piece?
Against dust and moisture from above a rain cover is included. Luxury seems to be the storage space for a water bladder. However, this is not included. I know should water bladder from my bike routes, but even the smallest with a liter would not fit there. On my two-liter Camelbak I would not think it was only then.
Ok, this is 400 probably not thought of Sport Pack.
Given the springlike temperatures it lured me with the camera outside. So the opportunity was favorable, try the same backpack.
It is unusual that the opening for the camera equipment is on the back. As I said, unusual, but not bad. There are also side a zipper to allow quick access to the camera.
I have three Nikon bodysuits and various lenses, which are used depending on the subject and a Canon camera Bridge.
The bridge camera is comfortable in the camera compartment into place, which was to be expected due to the small size also.
Let's try it now once with the Nikon D80 with AF-S DX VR Zoom-NIKKOR 18-200mm / 3.5-5.6G IF-ED.
Fits without problems, even with battery grip.
The next candidate is the Nikon D800 with battery grip and the Nikkor AF-S 16-35mm 1: 4G ED VR.
Watch out, though it is likely to be a little more of width.
It follows the Nikon D700 with battery grip and the Tamron SP 2.8 / 24-70mm Di VC USD.
Watch out, though it is also something should be wider.

However, in all three cases, with the SLR systems the tray so full that the entrainment of another lens or flash unit is not to think. The water bladder compartment I do not want to misuse it, since no padding is present here.

Now I once wanted to get some more focal length, or light intensity into the luggage. For the VR Nikkor AF 80-400 / 4.5-5.6 D ED it is very scarce in the combination with the bodys above. Also, a disassembly of the battery grip would bring no benefits in the length.
Unfortunately, this is suboptimal.
Now the camera body were with the Nikkor AF-S 70-200mm 1: 2.8G ED VR II.
The first test with the D80 brought the result that it is not. While it was possible to squeeze camera including lens into it, but a safe transport would not be guaranteed.
So I went with the combination Nikon D700 with battery grip and the Tamron SP 2.8 / 24-70mm Di VC USD on photo tour. The comfort is superb thanks to the sophisticated upholstery in spite of some kilograms of equipment.
In practice, the lateral compartment proves to extract the camera in D700 as impractical, so that in order to prevent the tuft, rather limited to the rear opening.

Conclusion:
Given the purchase price I would have expected more space for my equipment. Also, the storage compartment for water bladder has failed too small. Visually, the backpack appears larger than it actually is the case. So I want to pull a star here.
Processing and comfort are good to very good.
For someone who wants to take in its outdoor activities rubusten a backpack with camcorder or maximum entry-level SLR camera with a lens, the CULLMANN Sport Pack 400 is a good choice for sure. For me personally, the Sport Pack 400 is more of a half-hearted solution.