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<blockquote data-quote="crycocyon" data-source="post: 136384" data-attributes="member: 13076"><p>So I got it today and wow. On my 300 f/2.8 (which I also got today) I was focusing on far away landscape and the converter would just BOOM jump into focus as fast as anything I've seen from a D or G or DX lens. Even cooler was that the autofocus indicators in the viewfinder of my D800 were finding subject points with the black LCD squares popping up just as if it was an AF-S lens. Of course I had to manually focus to a certain point but then around that point is where one really needs the autofocus for fine focusing and it worked great. Of course, the teleconverter relies solely on the D800 for focusing so it will be as good as the D800 autofocus system. I'll need to do more testing because it was reading a minimum aperture of f4 while the aperture ring on the lens itself is set to f22. But the few handheld test photos I took turned out great. I'll assess the relative loss in quality of the converter as well at some point.</p></blockquote><p></p>

[QUOTE="crycocyon, post: 136384, member: 13076"] So I got it today and wow. On my 300 f/2.8 (which I also got today) I was focusing on far away landscape and the converter would just BOOM jump into focus as fast as anything I've seen from a D or G or DX lens. Even cooler was that the autofocus indicators in the viewfinder of my D800 were finding subject points with the black LCD squares popping up just as if it was an AF-S lens. Of course I had to manually focus to a certain point but then around that point is where one really needs the autofocus for fine focusing and it worked great. Of course, the teleconverter relies solely on the D800 for focusing so it will be as good as the D800 autofocus system. I'll need to do more testing because it was reading a minimum aperture of f4 while the aperture ring on the lens itself is set to f22. But the few handheld test photos I took turned out great. I'll assess the relative loss in quality of the converter as well at some point. [/QUOTE]

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