"No unfortunately not, this and a shot immediately afterwards had that halo while no other images from the morning did that. I didn't shoot RAW that morning so can't figure out if it was some setting in the D7000 that caused it."

"Wow. Any idea what causes the dark halo around the bird itself?"

"Well thought and perfectly realized."

"Really great shot!"

"Yup... I'm officially sick. I "like" my Sigma 70-200 2.8... but I LOVE the nikkor 70-200 VR2. Wow."