Great surveillance work----cia or fbi material. Patience is a virtue. Nice shotThe 12-40 Pro works okay for birding - when mounted on an E-M5 MkII on remote control via the Olympus app on the front deck with the local matriarch hen blackbird harassing my cat (a daily routine..). Camera on a small gorilla pod about 24 inches (40 cm) from the subject. Uncropped.
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