Using the Fuji X-Pro2 OVF and XF 100-400mm for Birds in Flight

I had not considered using the Optical viewfinder on the X Pro2 for use with the Fuji 100 - 400 mm lens but when we look at why the rangefinder/Optical viewfinder is popular its is so you can see what is coming into the frame.


I did try tracking birds in flight, but I was using the Electronic viewfinder and with the length and limited view of the sky between the trees I kept loosing the birds in the EVF

Time for another go...