[adrr]

It isn't a boom. It is just a transition from DSRL/video cameras to mirrorless. Market is consolidating around mirrorless for everything from photography to video. Hire a wedding photography and a wedding videographer today, they may have the same equipment.

[thomasjb]

I believe that TLRs are going to make a resurgence and wipe out this mirrorless fad

[Krisando]

I have yet to see a TLR in real life.