Pentax K5 with Falcon8mm and Nodal Ninja 3
This was taken from the inside of a RB.211 -524B jet engine at the Technic museum
in Speyer, Germany. The fan has a diameter of 215cm (about 7 foot). The RB in the name stands for Rolls Royce - Barnoldswick (where it was developed). The engine was used for Lockheed L-1011 TriStar planes in 1977.