290MM But the Tech guy/girl here described as it was an just an older camera.
ASIAIR@zwo is usually answered by a "she," and Tech@zwo is usually answered by a "he." But that can change, who knows for sure.
Yes, the ASI120MC and ASI120MM are very old cameras. Mine had a 2017 date code on it, and it had, if I remember, already been out for a while when I bought mine.
The ASI120 uses Cypress (now owned by Infineon) CY7C68013A series micro-processors, which are basically an Intel 8051 with a USB controller on it.
The ASI120 had so many problems (just search Cloudy Nights, etc), ZWO eventually simply dropped support for it, and issued the ASI120MC-S and ASI120MM-S as replacements (at cost to the poor customer, even though the broken design was not the fault of the customer).
I doubt that they are eager to resuscitate your camera, since it will bring up the rest of the problems with the ASI120. And if you time is valuable, you really don't want to deal with the problems, either.
Even with working firmware, my ASI120MM succeeds in connecting perhaps only one out of ten times. Once connected, most frames are dropped (and that is using ZWO's own program).
Chen
