Very nice accessory for a relatively fast lens (2.8 or less). Somewhat expensive, but excellent optical clarity. A great way to nearly double your reach with only a small penality in light loss.

The converter is very easy to use, and with Nikon's modern lenses it enables all functions; Optics are excellent, and very little is lost in sharpness; The 1.7 is a very nice middle ground between the 1.4 and the 2.0.

The converter is expensive; and a little inconvenient if you are in a hurry

I am taking on field photos of college lacrosse games and trying to get up close and detailed photos for the players, the school and the parents. This teleconverter allowed me to get a bit closer with my 70-200mm f/2.8 Nikon lens and make better use of the whole field.

Consistent Output; Durable; Strong Construction

Poor in Low Light

I would rate the 1.4TC as the only TC that will yield excellent results across the board. The 1.7 is a good compromise, but dont expect it to yield tack-sharp results on every lens. You need to stop many lenses down at least two stops when using this TC to achieve max sharpness.

Good reach; works flawlessly with top-quality glass

Not as sharp as 1.4TC

like a lot of photographers, I'm looking to cut down on carrying everything including the kitchen sink. this lens takes up very little space but it packs a punch. Its the first thing into the holdall. Should have bought it years ago.

Durable; Easily Interchangeable; Lightweight; Rugged; Strong Construction

I bought this (not from amazon) to use with my 70-200 2.8 VR2, after reading good reviews online. The thing is, there is a great impact on image quality, so much so that I just don't use it. Images are soft, even stopped down 2 stops, and lack contrast.

I would rate the 1.4TC as the only TC that will yield excellent results across the board. The 1.7 is a good compromise, but dont expect it to yield tack-sharp results on every lens. You need to stop many lenses down at least two stops when using this TC to achieve max sharpness.

Good reach; works flawlessly with top-quality glass

Not as sharp as 1.4TC

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