I get that they sound similar but they absolutely are not the same thing and its use implies that there are only mirrorless cameras.
I get that they sound similar but they absolutely are not the same thing and its use implies that there are only mirrorless cameras.
Agree. People talk about full frame and APS-C sensors independently of whether that sensor is in a DSLR or MILC body.
One possible explanation is that some FF and APS-C DSLRs are still in production while four thirds DSLRs stopped production 15 or so years ago. Four thirds also doubles as the name of the first system, which helps add to the confusion.