The Beta Shell 4.0-260mm Rigid Waterproof Lens Case (Black) is compatible fast large lenses. It fits lenses with an external length of 8.11-9.76" (206-248mm) and maximum external diameter of 2.68" (68mm) or less. The case has a rigid cylindrical design that protects the lens against the harshest environments. A 1.5" Visco-elastic polyurethane foam support system dampens impact. It has a 2.0mm thick neoprene liner. There is a heavy-duty O-ring seal that keeps water, moisture and dirt out.
The case protects the lens from temperature changes that can develop condensation and fog. This case is compatible Canon EF 55-200mm f/3.5-5.6 II USM or Nikon Nikkor AF 200 f/4 Micro, Nikkor AF-S 300 f/4.5, Nikkor AF Ai-S 300 f/4.5 IF-ED, Nikkor Ai-S 100-300 f/5.6, Nikkor AF 80-200 D ED or Nikkor AF-S 70-200 f/2.8 IF ED VR I lens. Other brand i.e.; Contax, Pentax and similar size lenses can also fit in the case.