Nikon TC-20E III 2x Teleconverter

The Nikon TC-20E III 2x teleconverter arrived today for my 70-200mm f/2.8 lens. It doubles the focal length (more zoom), but also doubles the effective aperture (less light) turning it into a 140-400mm f/5.6. I’m not sure what happens to Vibration Reduction (VR) performance, but it appears to work just as affectively, i.e. about 4 stops of extra shutter speed when hand held on a still object. 1/60 shutter speed looks plenty sharp at 400mm, when you would normally need at least a 1/400 shutter for sharp images without a tripod. I had no trouble at all with autofocus either, but I haven’t tried any moving objects yet. From reviews I’ve read, it is a bit sharper stopped down to f/8 than wide open at f/5.6, but I don’t see any issues with sharpness at all at maximum aperture. Bokeh is beautiful; backgrounds further than 8” away from the subject turn dreamy smooth. Here are some quick sample images I took around the house. All of these were taken hand held at 400mm, f/5.6, 1/60, and ISOs ranging from 360 to 2000.

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