This series is called the “C-Series,” because they are for one Camera and lens attached together. Holster case (& zoom case) is the common name for the line of bags.
“Medium-Sized” Digital SLR Body: • Canon Rebel (all), 50D, 7D or 5D WITHOUT the optional vertical grip attached (all Canon bodies but a 1D-series body)
• Nikon D40, D60, D90, D3000, D5000, D90, D700 etc. without the optional vertical grip attached (all NIkon bodies but a D2 or a D3-series body).
There is also enough space for a Arca-Swiss style quick-release plate attached. “Short-Length” Lens: (partial listing only, includes lens hood attached and reversed in the stowed position on all)
• 10-22/3.5-4.5, 12-24/3.5-4.5, 16-35/2.8, 17-85/3.5-5.6, 18-55/3.5-5.6, 18-135/3.5-5.6, 18-200/3.5-5.6, 24-70/2.8 (except Nikon as it is too tall), 24-105/4 & 28-135/3.5-5.6
• And most every prime (fixed) lens with a focal length up 300mm and a front filter size up to 82mm in diameter, like 28/2.8, 50/1.4, 85/1.8, 200/2.8, 300/4 etc.