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| Kenko extension tubes - Page 1 | |
| Ring flash won't work using extension tube/Micro Nikkor 105mm D lens | Rate Topic |
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| Posted: Sat Nov 3rd, 2018 16:10 |
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1st Post |
HPDMaven
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I have recently been trying macro photography (Nikon D5000, Micro Nikkor 105mm D lens, K&F Concept KF-150 flash unit). The issue is the ring flash unit won't function with the extension tubes in use with the 105 D lens. Without the tubes, it works fine, using the 18-55mm VR lens with the tubes, it works as well. I asked this same question on another forum, and there was no explanation to be had. I'm hoping on this Nikon specific forum, this issue may be resolved. Sorry to be a pest on my first post, but this is driving me kinda crazy! Regards, Dan
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| Posted: Sun Nov 4th, 2018 02:48 |
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2nd Post |
Gilbert Sandberg
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H, re: pest You are not, it's just an interesting question. I assume the Kenko set of tubes is fully compatible with your Nikon gear (I own a similar set). I do not know the flash you mention. Is it Nikon CLS compatible ? Have you tried the lens/tubes/camera with a normal Nikon flash ? Have you checked/cleaned the electrical contacts on the tubes/lenses ? Regards, Gilbert
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| Posted: Sun Nov 4th, 2018 13:05 |
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3rd Post |
HPDMaven
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Hello Gilbert, thanks for your reply. The tubes are the ones made to be compatible for Nikon, as is the flash. The only other flash unit I have is an old one for film SLR, it works after a fashion, not really compatible. I have looked at all the contacts, all looks good. It makes me think I have something set wrong, this camera (to me) seems as though it would be easier to run a nuclear power plant. It makes me long for my old SLR's in days past. Regards, Dan
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| Posted: Sun Nov 4th, 2018 14:35 |
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4th Post |
Robert
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Hi Dan, Welcome to the forum. This seems like one of those problems which it would be easier to solve in person rather than at a distance! Have I got this right? This is a ring flash, it works OK without the extension tubes but not with them... The flash screws onto the front of the 105 Nikkor... How are you connecting the flash to the camera? an adaptor off the flash shoe or from the flash socket on the camera body? From a purely electrical point of view I just wonder if the lens needs to make electrical contact with the camera body... The Kenko? tubes are plastic. I am a bit sceptical about using the zoom for close up when you have the Micro Nikkor 105 D. Except for trying to narrow down this problem of course! I would not recommend using an 'old' flash intended for film, on a DSLR because the trigger voltages on the old flash units can be quite high and can destroy the circuit boards in a DSLR. One sure way to trigger the flash is to use a flash relay like the Nikon SU4, triggered by the onboard flash.
____________________ Robert. |
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| Posted: Sun Nov 4th, 2018 14:42 |
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5th Post |
jk
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Hi MPDMaven, Welcome to the forum. Do the tubes have electrical contacts that go through from lens to camera body? Most ring flashes are not TTL as they cannot or do not pre-flash but work on the principle of using a fixed aperture value. However as soon as you put extension tubes into the equation this changes the notional aperture. So you need to use a bit of trial and error to work out if the lens shows f8 then the real aperture with the ext. tubes may be f16 or f22 or something else. Do a series of exposures and see which value you need to use for the shown aperture on the lens. Also remember that most ring flashes are relatively small flashes.
____________________ Still learning after all these years! https://nikondslr.uk/gallery_view.php?user=2&folderid=none |
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| Posted: Mon Nov 5th, 2018 07:06 |
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6th Post |
Gilbert Sandberg
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H, re: this camera Please note that the D3nnn/5nnn series are modestly-priced cameras by Nikon, some features that many people like have been left off. Back-on-subject: I have not come up with an idea how the failure you mention may occur.Q: why would you want to use tubes on a Micro Nikkor? Do you really want more than 1:1 reproduction ?On zooms and tubes: not the best combination under most circumstances. to others: Kenko (or otherwise branded) tubes can be very compatible. The best discerning factor is price, if a set of three tubes is priced anywhere under USD 100, compatibility and functionality may be an issue, mine cost more and work fine in all combinations I tried.(I admit to not owning any Dnn00 series cameras). Regards, Gilbert
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| Posted: Mon Nov 5th, 2018 07:36 |
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7th Post |
jk
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The 18-55 is an AFS lens The Nikon 105 macro D - I think this is a AFD lens The tubes must be electronically coupled to the camera otherwise. Please can you post full specification of the 105 lens. There are several versions of this lens. Do you have pictures of the tubes, lenses (both) so we can see the contacts on the rear of lenses and tubes as well as front of receiving throat of tubes.
____________________ Still learning after all these years! https://nikondslr.uk/gallery_view.php?user=2&folderid=none |
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| Posted: Mon Nov 5th, 2018 13:41 |
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8th Post |
HPDMaven
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Hello Robert, The flash is mounted directly to the hot shoe. The tubes are plastic, yet they do have the series of contacts for relaying the signals back and forth. I have only used the tubes on the 18-55mm AF VR lens for testing purposes. Robert, thanks for your reply, regards, Dan
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| Posted: Mon Nov 5th, 2018 13:55 |
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9th Post |
HPDMaven
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JK, the tubes do have the contacts. I don't seem to be getting correct information regarding exposure either. I tried the ring flash with the 18-55mm VR lens, and took a shot of my whole room using the ring flash. It lit up the whole room. This flash unit does have TTL, by the way. Thanks for your reply, regards, Dan
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| Posted: Mon Nov 5th, 2018 14:50 |
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10th Post |
HPDMaven
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JK, I'm having trouble posting photos. I'm exceeding the file size. I'm equally technophobic in both cameras and computers.
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| This is topic ID = 1602 Current time is 02:20 | Page: 1 2 3 4 | |
| Nikon DSLR Forums > Camera and Lens Forums > Specialised Photography - Macro, UV, IR, Underwater > Kenko extension tubes | Top | |
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