Mink. My first chance to try the 1.4x TC on this lens. Poor light, but bursts at slow shutter speeds resulted in some sharp keepers, as mink don't stay motionless for long.
Canon EOS R5m2RF100-500mm F4.5-7.1 L IS USM + EXTENDER RF1.4x lens700mmf/9.51/125s6400 ISO+0.5 EV