You get what you pay for. Build and design is otherwise okay, but there's rather substantial wiggle in the screw mechanism that tightens the gear (that contacts the geared lens ring) to the unit. That wiggle, combined with other sources of wiggle, such as the mount, adapter, lens focus ring, mechanical connection of the unit to the cage/rails, etc..adds to too much play for my taste and defeats the sole purpose of the unit. The focusing is also very tight which may be good for some lenses, but for lenses that have tight focus rings to begin with (say, Sigma Arts), it will have way too much resistance.
Verified purchase: Yes | Condition: New
I'm finding these to be very useful, bought a 2nd one! The Video light is super bright!
Verified purchase: Yes | Condition: New
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