GH3 Metabones adapter not reaching full aperture....

S

Stab

Well-known member
Hi guys,

I've recently bought a Nikon G -> Micro 4/3 adapter from Metabones.

I've realised today that I cannot fully open the aperture on all three lenses I own. I have a Sigma 18-35, a Tokina 11-16 and a Samyang 85mm all in Nikon mounts. The adapter does seem to work fine though, and by turning the aperture ring of the adapter the aperture of the lens physically moves smoothly and indeed gets smaller or bigger depending on which side I'm turning.

However, it's like the mechanism inside the adapter isn't quite 'long' enough to push the lever so that the aperture opens completely. I see the same thing happening, even when I do not attach the adapter to the camera.

The question is, is this normal? Is this just how the adapter is designed? Does anyone here has the same adapter / lens combo to tell me? Or is mine broken?

Thanks!
 
I have this adapter but I'm not using it with any Nikon G lenses, so I can't confirm the issue that you are experiencing. ( I'm only using it with Nikon AI-S lenses so far, and there's no issue at fully opening up the lens via the Metabones ring )
 
Make sure you have the adapter set to "7" or fully closed before mounting the lens... otherwise the lens' lever can get on the wrong side of the adapter's aperture cam and result in exactly what you're experiencing.

If you're doing this, and it's still doing that, then a call to Metabones is in order.
 
mcbob said:
Make sure you have the adapter set to "7" or fully closed before mounting the lens... otherwise the lens' lever can get on the wrong side of the adapter's aperture cam and result in exactly what you're experiencing.

If you're doing this, and it's still doing that, then a call to Metabones is in order.
Click to expand...

Thanks Mcbob. Yes I knew that already so I've tried that as well many times. It makes no difference unfortunately.
 
yslee said:
Is it just a little bit, or a lot?
Click to expand...

It's about a full stop. Maybe 1.5.
I've just contacted Metabones and they asked for pictures, so I sent them. I just read some customer reviews about this adapter and there were a couple more people mentioning the same problem.
 
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