We seem to have veered slightly off the topic.
Returning now to the discussion of the Nikon F ....... another aspect of this camera that was held in high regard was the motor drive.
This was probably the feature that put the Nikon F ahead of its contemporaries.
The combination of the Motor drive F36 and the direct-connecting battery case truly represented the dawning of the motor drive era in photography.
The motor drive gained worldwide popularity due to its mobility.
Later, the noise it created would become a problem ; nonetheless, the motor drive was established as a symbol of high class among more experienced users.
The F36, along with the 250-frame motor drive F250, were employed in the maintenance of scientific records, as well as in a number of different industries.
The powers that be decided that, for the "A", a motor drive that performed at a higher level and simplified operation was necessary. It would be designed exclusively for the "A" model.
Among its new features were quicker film advance (five(5) frames / sec., up from four(4)), electronic film rewind and auto frame counter reset.
A feature of the "A" that stood out was the hole in the bottom of the camera to enable motor-driven rewind.
At that time, Japanese film manufacturers had begun to make a film rewind key of the cartridge on the opposite side of the cartridge from the conventional key.
Once famous overseas manufacturers followed suit, the hole was incorporated in the design of the "A".
Development of the A-36 and the A-250 began — six(6) months late, but it did indeed get underway.