Works great with my 600 f/6.3. Much better than using my 500 f/5.6 with as teleconverter.

So far, so great. It works as I expected. I am using with 180-600mm

I use the tele-converter mostly the Z 100-400 f 5.6. It works as advertised. Only see a slight degradation of image quality. Have to zoom in to 100% on picture to see.

It works great with several of my z lens and can help me decide what to take when hiking.

I paired this with a 180-600 Nikon lens. I am please with the added reach, image quality, and weight. Definitely an asset for wildlife photos.

I've used the lens with my 100-400mm zoom on the Z7II for two bird outings. Image quality, as expected, has been great and I appreciate the longer "reach".

I really am enjoying this Z1.4 tele on my Z6iii with the amazing Z100-400 S lens. Just a little extra boost to my range when I need it without putting me into lose of details or worry about extra grain. Would highly recommend you purchase one of these.

Use it with Z 100-400mm f/4.5-5.6 VR S; have also tried it with Z 180-600 f/5.6-6.3 VR and Z 70-180 f/2.8. Retains very good image quality with all these lenses. Very solid connections; no wobble when carrying lens-converter-body combination by lens foot (or lens alone with the 70-180). Very satisfied.

This is an outstanding product. Hooked up to the 180-600 zoom, I'm getting impressively sharp photos and sacrificing only one f stop. I see no signs of distortion at all from the extra glass. Highly recommended, particularly for wildlife.