
The Turmzielfernrohr 9d (T.Z.F. 9d) was a German telescopic sight used on the Tiger II (also known as the “King Tiger”) heavy tank during World War II. It replaced the previous T.Z.F. 9b/1 and was specifically designed for use with the 8.8 cm Kampfwagenkanone 43 (Kw.K. 43) cannon.
The T.Z.F. 9 d had a reach of 3 kilometers on its lower magnification with a wider field of view (2.5×25°) and a second setting with higher magnification and a reach of 5 kilometers with a more narrow field of view (5.0×14°). This specific piece of equipment was made by the company Fa. Ernst Leitz from Wetzlar in 1944

The T.Z.F. 9d was a significant advance in Wehrmacht fire control technology. It enabled the gunner to engage targets with high precision at long distances. In training scenarios, a hit probability of almost 100% at 1,000 m, 95–97% at 1,500 m, and 85–87% at 2,000 m was achieved, depending on the ammunition used. In actual combat, the hit probability was over 80% at 1,000 m, in the 1960s at 1,500 m, and in the 1940s at 2,000 m

