Dear ZWO I tried to use the T2-M43 adapter on my 6.5mm back focus camera and my M43 lense. I could not focus at infinity. I mount the lesne on my ZCam E1, it is ok. I measured the ZCam E1 (M43 camera) distance from sensor surface to bayonet ~ 16mm !!!! Not 19.25mm Is it the T2 M43 adapter 3mm too long? Is the 19.25mm spec refered to a different dimension? Did anyone dared to make such measurement on a Sony camera ? Thank you Andrei