Hi,
Operationally, the Zfc and Df are more like the FA than anything else. With motor drives and data backs. And in a much smaller and lighter packag.
I can't see that. They aren't so much like the FA. And the Df is certainly not in a smaller and lighter package, it's like an FA on steroids. The Zfc more so, but then it's a half-frame camera, so it's still relatively oversize.
The FA was the most advanced of the line and it has a very differently shaped pentaprism.
Yes, different from either the FE or FM.
Yet when I shot with a FE and a FA side by side, I used the FA in Aperture Priority and center weighted metering just like the FE and they operated as if they were the same model.
So the shape of the pentaprism really means little.
It's a design cue, that was all I was talking about. This is industrial design, it's about form not so much function. And it's significant that Nikon decided to take the design cues of the FM series, not so much the FE or FA when it came to the major difference, that pentaprism housing. There must be a marketing reason, that is it is the FM series that is 'iconic', whether that is rational or not.
And they'd have been better off calling the FM3a the FE3.
They didn't think so. So why did they call it the FM3A? As above, the FM series was the 'iconic' one, and a large reason for that its that it wasn't battery dependent, so it could be put forward as more of a 'pro' tool (before you say it, marketing things as 'pro' is mostly spurious, whichever company does it). The FM3A retained the ability to operate without a battery, though as I remember you only got one shutter speed.