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-   -   Kenko 1.4 pro 300 on D80 (

Angel L. Sep 16, 2008 11:29 PM

I just received my tc a pro 300 N-AFd.
I get the flashing F-- error. I cannot get the D80 to focus or shoot??

Angel L. Sep 17, 2008 11:25 AM

I am noticing the focus rings on both sides of the tc are very loose and rattle when shaken.

I switch to manual and it does show shutter speed but not f stop, and still no AF?

artmustel Sep 17, 2008 7:07 PM

Angel, what is the maximum aperture of the lens you are using?

FrankD Sep 17, 2008 7:37 PM


What lens are you mounting to the TC? Is the lens compatible with TCs? There are various compatibility tables around. This one looks quite useful:

If your lens has an aperture ring and is not set to the minimum aperture (highest f-number) the camera will displays the flashing Es. There might be a lock to hold the aperture ring in the correct position.

Angel L. Sep 18, 2008 10:52 AM

Thanks guys,

I am using a D80 with a Tokina 80-200 f2.8 pro lens. The apeture ring is locked at f32. The lense works fine mounted w/o the tc.

If I mount the tc only to the camera I also get the flashing F--???

I do noyt think this tc is AF?

artmustel Sep 18, 2008 11:19 AM

Angel, can you see the electric contacts on both sides (camera and lens)of the tc? if so it should be AF, otherwise it might be defective...

Angel L. Sep 18, 2008 11:43 AM

You are right it is AF, but it does not mount perfectly, I have to wiggle ever so slightly to make contact.

Angel L. Sep 18, 2008 12:25 PM

After cleaning the contacts, it does make a better connection, but not solid. The lense it top heavy and I needl to make sure it maintains connection. I bought it used from KEH, should I consider this item defective, or is this normal operation.

FrankD Sep 18, 2008 1:18 PM

It should maintain a good electrical connection. If it does not I'd say it was defective.

I use a Signa 1.4x TC with a Sigma 100-300mm f/4 and it works without any problems.

artmustel Sep 18, 2008 1:43 PM

Angel, at this point I'd go for a return.

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