Was basically the same as the PzKpfw III Ausf E.
The PzKpfw III Ausf F was the first main production model of the PzKpfw III series.
Improvements to the covers on the air intakes (bow near headlights), improved brake system, and additional position lights were fitted. Armed with 37mm but later changed to 50 mm KwK 38 L/42 (approximately 100 were built). From August 1940 to 1942 most of the remaining tanks were converted to the 50 mm main gun and had additional 30 mm armor plates added to the bow and superstructure.
Some turrets had additional storage added to the back of the turret.
On the hull were five smoke generators that were remotely controlled from the turret.
The design changed so that there were only six road wheels used.