The detail from this original RAW file blew my mind. I realized rather than an image of a sparrow this was a study of the sum of feathers that make up a sparrow. The detail so great at 100% every rachis, barb and even the interlocking pattern of barbules are all visibly sharp, at 200 - 300% magnifications not only sharp but countable if one hand a mind too.
how close did you get? Amazing sharpness!
Juergen, it came within 12 - 9 feet as I was sitting still watching several birds at a local conservation area. And yes like I said the sharpness and detail of the full resolution file blew me away. Thanks for question and comment, Paul