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Kenko extension tubes   -   Page   2
Ring flash won't work using extension tube/Micro Nikkor 105mm D lens  Rate Topic 
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Posted: Mon Nov 5th, 2018 15:40
 
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Robert



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Don, re. photo's, use low resolution JPEGS. I do a selected screenshot of the image I want (Mac, Shift+Command+4, don't know about PC's), save it to my desktop then use that. Unfortunately we can only post single image per post. Something we need to address...

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Posted: Mon Nov 5th, 2018 15:45
 
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HPDMaven

 

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Robert, JK. I'll try one photo here, see what happens

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Posted: Mon Nov 5th, 2018 15:52
 
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HPDMaven

 

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Ex. tube, Micro Nikkor 105

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Posted: Mon Nov 5th, 2018 16:19
 
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HPDMaven

 

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Micro Nikkor 105mm 1:2.8 D lens

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Posted: Mon Nov 5th, 2018 16:25
 
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HPDMaven

 

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Ex. tubes, Micro Nikko 105mm 1:2.8 D

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Posted: Mon Nov 5th, 2018 16:35
 
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HPDMaven

 

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I have managed to post a few photos, others wouldn't.

 




Posted: Mon Nov 5th, 2018 16:36
 
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jk



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I have that lens but I dont have any extension rings for the lens as I use bellows instead.
I have a Ring flash but I need to manually get exposure correct as any extension changes the shown f stop to a different one depending on the degree of extension.

I can see no reason why the flash wont fire when the tubes are used.



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Posted: Tue Nov 6th, 2018 02:43
 
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Robert



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jk wrote:
I can see no reason why the flash wont fire when the tubes are used.

That's my take too.

Dan, have you tried the same combination, with extension tubes and without extension tubes, with the inbuilt flash, rather than your ring flash?

Not suggesting it as an alternative but as a way of eliminating the external flash.

I just get the feeling the camera could be 'taking over' when the extension tubes are fitted.

Have you altered the flash menu settings? A two button reset should return the flash settings to factory settings.

Also, try operating the flash not actually mounted on (or touching) the lens, both with the zoom and the micro 105. I am still thinking of the possibly missing earth return path when tubes are used in combination with the micro 105.

The standard method of cleaning the contacts is using an eraser, especially a pencil top mounted eraser which can get into the contacts without damaging anything. An alternative is a fibreglass tipped pen which can be used to scrub the contacts to clean them.



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Posted: Tue Nov 6th, 2018 12:38
 
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HPDMaven

 

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Robert, I will try the tubes with the built-in flash, though I may have already tried that, but I've tried so many things, I can't remember if I did or not, at this point.

Also, I'm going to try doing a continuity test on the contacts of the tubes, and see if they are working properly. I have found trying to find out anything from Kenko seems pretty much be an impossibility, If I can't make them work, I'll return them to Amazon.

Thanks,
Dan

 




Posted: Tue Nov 6th, 2018 14:37
 
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Robert



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HPDMaven wrote:
I have found trying to find out anything from Kenko seems pretty much be an impossibility.

One of the downsides of lower priced gear, although TBH Nikon aren't always forthcoming.

Good luck!



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