The Mista Micro Camera looks to be modeled after the RunCam Micro Swift 1. It performs nearly identically, and is very close the same size. The lenses look to perform identically and are interchangeable. The internal hardware is not completely identical as shown by the location of the OSD letters from BetaFlight. The RunCam displays the OSD a little lower on the screen while the Mista camera tends to move it up a little. A configuration change in BetaFlight can move it to where the pilots wants it.
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You can get your own here:
Mista Micro:
RunCam Micro Swift 1:
Mista Replacement Lens:
RunCam Replacement Lens: