main points
(sensorex /automex cameras were auto diaphram)( the sensomat had the meter in the mirror NOT the prism that was removable)
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CORRECTION
the early miranda camera a b c d t s were all similar
the C ? and the D had instant return mirrors but no metering
except an add-on pentaprism (designed for the f fv sanf G) but would fit ol;der models.
Two pentaprism meters were sold one cds looking foprward qand one with
ttl metering ( both uncoupled)
there were also meters that sat on top and couples to the shutter speed dial possibly only G and FV.
this was mirandas attempt to upgrade.

the early models A B C D S T had no auto diaphragm action
the c and d often were sold with PAD external auto diaphram lenses
similar to the exactas.

CORRECTION TWO"
the automex which was made BEGORE the model D had an internal diaphram
and an external arm for match pointer meter coupling
( the wiki article and this one implies that the arm on the left was for diapham.
NO it was for match pointer metering.
the sensorex ( not the ec or ee versions or the dx3) were essentially the SAME as the automex. BUT the meter on sensorexes,was now on the Mirror,. Changing the Viewfinder to a waist level or crital Viewfinder, also did not affect the meter.
Internal diaphram ttl metering instant return mirror.

Another feature that I do not thinkdany other camera had was that by setting the max aperture dial and the external metering are to the same number ( usually f/1.4. this may be sensorex only as I do not have an automex

any darn thing could be put on the front of the camera and by adjusting the shutter speed
proper exposure could be obtained.
this meant photography thru microscopes and telescopes would be correctly exposed.
Older external diaphragm lenses could be used but the aperture setting had to be transferred from the left side arm to the aperture ruing on the lens.

there was a 5x 15x viewfinder that helped properly focus the lens.

edit as you wish-- mostly the fact that the automax /sensorex ( not ee or ec)
had the internal diaphragm

After the model D which was the last non internal diSsensomat had an internal diaphram coupling but were otherwise very similar to the earlier models like the D and before.
the sensomat was like the f fv and g but has stop down metering ( meter on the meter)

All cameras exceopt the DX3 were very close in constuction.

After the demise of the Miranda company some very close to the sensomat, were sold with a M42 mount or a K mount.
several years later a K mount " miranda" was made by cosina but was no different then Cosina K mount cameras except for the name.