Originally Posted by pnwyankee
Agree that there is just so much you can expect with this setup
While the D500 is an excellent camera for this type of photography, it is already a cropped sensor.
300mm is a good compromise lens for handheld ( no tripod ) but it would be nice to have the longer reach of at least a 500mm or 600mm - thus eliminating the need for extreme cropping.
Sure is fun to spend $8,000 of somebody else's money
Or he could substitute the 1.4 for the 2.0 TC and take much less of a hit to IQ. I use this combo regularly—D500 with TC14EIII, always handheld—and have been quite happy with it.