Tenba RC14, 14" Waterproof Nylon Rain Cover for SLR Cameras with an 80-200mm Lens.

Tenba Rain Covers: Full rain protection for all 35mm cameras and motor drives with their large fast lenses.
The Rain cover is a no-seam, one-piece construction which covers from the lens hood to the view finder and wraps under and around the camera.

Available in 5 sizes:
RC9 for camera with 28-30 mm lens and hood.
RC14 for camera with 80-200 mm lens and hood.
RC18 for camera with 300 mm lens and hood .
RC24 for camera with 400 mm lens and hood.
RC26 for camera with 600 mm lens and hood.