300mm f2.8 VR + TC-20E III

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Enigma

New member
Hello there
I am new to this forum and i hope that I am posting this in the right place.
I noticed something with the nikkor 300mm f/2.8 VR lens when I attach it to the TC-20E III. the lens makes some sound (motor) when it is attached directly to the camera (D810) and the AF is fast, but when i attach it to the TC it becomes really silent and the AF moves a bit slower ... is this normal?? ... I used the same TC on a 70 - 200mm 2.8 VRII before and I did not notice any difference in AF speed. So I am wondering if there is an issue with the lens?
Thank you
 
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mikew_RIP

Senior Member
Welcome to the forum,i would expect the AF to slow a bit as you are losing two stops of light,as for the noise i cant answer that.
 
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pforsell

Senior Member
I have the same combination and don't know what might cause that odd behavior with the sound. Maybe your VR is misbehaving? Have you tried with VR on and off whether that has any effect? Perhaps the TC has a problem and it disables VR? First thing to try is to clean the contacts on the lens, camera and both ends of the TC.

AF speed takes a hit with my 200/2 VR2, 300/2.8 VR1 and 400/2.8 VR when using the TC-20E III but not with the TC-14E III. Not a big hit, but noticeable. I haven't tried TCs with zooms so I cannot comment on that. Possibly the zoom focuses so slowly anyway that the TC doesn't affect it in the same proportion as it does the fast primes. I don't have the 70-200VR2 but I have the VR1 and the focusing speed is very slow compared to 200VR2.
 
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Enigma

New member
I dont think it is the VR.. the VR makes the ticking sound which I understand is normal on some lenses ... but the noise I am getting is like buzz from a motor ... anyway ... I took it to couple camera stores here and both think the noise is normal ... my only confusion is why the noise disappears when I hook it to the TC :confused:
 
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