This TC is fantastic quality. You will not be able to see any quality degradation. Best of the three TCs, but the least magnification.

Bought this for use on the 300 f2.8. I have seen no degradation of the image. It works well also with 105 f 2.8 and 70-200 f 2.8.

While I hope to create a full Nikon TC-14E II AF-S Teleconverter evaluation, my first priority is to include results from this lens in the lens comparison tools. This page currently exists because it is required by the database and content management systems for the posting of those standard test...

I have the AF-I version which has exact same optic design. Only difference is the cosmetic. IQ produced from this TC is simply superb. Highly recommended.

superb IQ

Nothing

I bought this teleconverter when I bought my 70-200. So far I've had great results shooting wide open at F4, and better results when stopped down a stop or two.

IQ isn't very noticeable when stopped down a stop or two

Will degrade image quality; but is much cheaper than buying the 300 F2.8 VR