I have used if on a 7DII and sigma 150-600 Sports. Great for each reach/focal length. Images are still sharp. Auto focus is a little slower but still useable.
Verified purchase: Yes | Condition: New
I bought the unit for my Nikon D810 coupled with a Tamron 150-600, hoping to get a little extra reach for bird photography. It slowed the auto focus considerably making it very frustrating. The subject was usually well gone before the focus stopped fizzing around and it had settled. It may be faster with other lenses, but for me, the unit is useless where focus speed is essential. Disappointed.
Verified purchase: Yes | Condition: New
Awesome discount from DC Expert was too good to let go. Handy being able to update the firmware with the dock, so it's future-proofed. Loss of image quality hardly noticeable.
Verified purchase: Yes | Condition: New
Great Value for Money. Provides a significant upgrade to my existing Camera Lens at a realistic Cost.
Verified purchase: Yes | Condition: New
Also works with canon lenses and is excellent quality!
Verified purchase: Yes | Condition: New
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