Tamrac 5793 Super Telephoto Lens Pack, *mint* condition, only used 1 or 2 times. Specs say lenses up to 18 inches (600 mm etc) with pro DSLR attached. I show a Canon 500 f4 (with hood reversed) with attached 1.4x teleconverter and 5D Mark IV body + grip in the pics and there's still room to spare. The interior cradle is adjustable for lens length. Plenty of accessory storage pockets in the main compartment and on the sides, plus a rain cover. Padded shoulder straps plus a waist belt. Pocket and straps for monopod or tripod, I show a Manfrotto 190 tripod with Wimberley gimbal head in photo. Similar product today is the Tamrac Anvil Super 25.
