I have had all three of those binoculars you mention, and I would take the Zeiss SF 8x40 out of the three, but there is an auction on eBay for a Swarovski EL 8x32 which I like even better. It is mismarked as an EL Range, but it is a regular EL Swarovsion 8x32 and looks brand new. Outside of the Zeiss SF or Swarovski NL which are both about $2500, it is one of the best birding binoculars you can get. I would throw a bid in on it for about $1700. Not much more than the Zeiss SFL 8x40. For some people, the Zeiss SFL 8x40 will show the blue ring of death around the edge of the FOV.
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