pixco auto focus macro extension tube 10mm + 16mm for canon eos m ef-m mount mirrorless camera – m m5 ii m6 m50

it is macro extension tube for canon eos m ef-m cameras.
automatic extension tube set is combined of 2 rings – 10mm, 16mm.
can be used individually or by combination.
equipped with electronic contacts which transfer exposure data.
body is made of abs plastic with aluminium alloy ring.

all automatic functions work well and there is no need to set them manually.
as for af engine and ttl auto exposure in modern lenses there is no need to worry, it works perfectly well with extension rings.
use these by inserting between the lens and the body of slr cameras.