Sgma 50/1.4 A @f7.1, ND gradual filter; hand-held, Nikon D600 morning, contre-jour, diffuse side sunlight, Amazon
Sigma 100-400 OS C @310mm, f6.3; Nikon D600 view over the eastern Andes, late morning
Nikkor 200-500 VR/TC 14 III @500mm, f8, ISO 250 Nikon D750 (Ramphastos brevis), back-lit; courtship display, the female nearby, Choco
