Teleconverter TC-20 III in the field

Pheasant, Norway
D3s, 1000mm, 1/200sek @ f/8, ISO250, beanbag

I used to own a Canon 2x teleconverter, but it was never used. When switching to Nikon I turned the TC-20 II down, and settled with the TC-14. This winter I was introduced to the new TC-20 III. Still I am quit comfortable with my focal lengths as they come, but lately I have started shooting with the new converter. Yes I know Nikon doesn't recommend the TC-20 for the 500mm f/4, but this is when I need it. If my 70-200mm come out short, I get the 200-400mm, and if the 300mm doesn't do the job I get the 500mm (and perhaps the TC-14). When the longest lens is not enough, is when I really need the extra magnification.

I experienced some difficulty focusing with the D3s, as expected, but the resulting files where very promising. Of course it can not be compared to the clean crisp images I get from shooting directly though the 500mm, but it is good enough. When it comes to a 2x teleconverter, I can settle with good enough. The TC-20 III will definitely be coming out more often in the future.

Tree Sparrow, Norway
D3s, 1000mm, 1/640sek @ f/8, ISO1600, Redged swinghead

Tawny Owl, Norway
D3s, 1000mm, 1/100sek @ f/9, ISO1000, Redged swinghead

100 % crop of the above file