With the Dynamic Shuttle L I found this backpack.
It is very spacious, so that I can accommodate my entire photographic equipment, including special accessories (full frame camera with battery grip and 24-105mm f4, 17-40mm f4, 50mm f1.4, 100mm f2.8, f2.8 70-200mm , 2x converter, flash, flash-top reflectors, several batteries, Angle Finder, 6x Fernauslöser set, memory cards, Xrite color plates, cables, various filters, ...). The backpack is flexible interior divisible, so that it can be flexibly adapted to the respective equipment. For my 15 "notebook is in the appropriate front, separate slide-in space.
The backpack valuable content is stored only accessible from the rear and thus well protected and secure.
The backpack is well made, wears excellent and convenient, especially when it is fully loaded.
The backpack meets all my requirements and expectations and to, in comparison with other products, good price-performance ratio.