For some reason, I can't put a capital Q in the title
By no means an exhaustive or expert test. Dave from Camera Craft was kind enough to pull the red Q10 off but leave the genuine adapter on for me
Sunny day, around 3pm, no breeze except just enough to catch the lens hood.
Also keep in mind ImageShack destroys sharpness, so they look 35% worse after upload.
All these pictures were taken with the adapter wide open. I took another of the statue with it set to "4" and it's a bit softer due to diffraction but not terribly so. I think the f/5.6 max aperture is already a bit testing of the sensor...
Full image, statue was probably 10-15 feet tall and somewhere around 200-300 feet away
Full image again, flowers were around 100 feet away
100% crop of the above
And even with a Gimbal head, good luck keeping track of wildlife! Best of 6 tries, this robin was about 65 feet away