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11-01-2011, 12:33 AM   #1
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Anyone seen this ring flash before? Thoughts??

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JY-670 Macro Ring Close-UP O Flash Gun for Canon Nikon Olympus Pentax Samsung | eBay


It says LED but appears to be a standard flash as well. Have spotted a few of these on eBay lately.
Am keen to test out this kind of flash for some infill lighting when Im doing event photography at music festivals and in conjunction with other lighting when im doing more studio stuff.

I understand it isnt very powerful, but could have its uses...

11-01-2011, 08:22 AM   #2
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I'd be interested to hear if anyone has any comments too. I'd love a ring flash for macro work at some point but don't want to spend a lot.

Edit to add:
I Googled for some reviews and didn't find any, but I did find it cheaper at Amazon:
http://www.amazon.com/Viltrox-Macro-Digital-Cameras-JY670/dp/B005SSMQAG
11-01-2011, 01:40 PM   #3
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This one seems a lot less expensive:

LED Marco Ring Flash For Pentax PK k-r kx k-5 k7 645D | eBay
11-03-2011, 04:46 PM   #4
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QuoteOriginally posted by bdery Quote

This one looks mostly like LED only? The other one appears to have flash tubes, dunno, hard to tell.

11-04-2011, 04:47 AM   #5
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Yep, the one I showed looks like it's LEDs only. Would that be a problem?
11-07-2011, 11:53 AM   #6
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It looks like ring lite - written on control unit.
On Viltrox homepage:
- 44 pcs LED Lights - but on the photos it looks like it is some kind of lamp behind (it's hard to see)
- Full svivel, 80 dgrees in either direction - this is interesting.
JY-670 Macro Ring Lite Specification - Products1 - Products - Viltrox

It looks like it has modeling lights on top and bottom.




Last edited by trco; 11-07-2011 at 11:55 AM. Reason: Forgot data ;)
03-21-2012, 05:13 PM   #7
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Meike FC100 LED Macro Ring Flash Light for £21 including shipment worldwide

I just ordered this one:

Meike FC100 LED Macro Ring Flash Light for Nikon D300 D3100 D90 D80 D7000 D5100 | eBay

It says "for NIKON", but I have answers from a chinese seller as well as a polish trader which both state that distinguishing between brands is just a marketing thing. No matter whether they are labeled as "for Nikon, Canon, Sony, Pentax,...", they all just use the x-contact.

If you have a closer look at the specifications, this makes sense. The LED flash offers variable flash INTENSITY, the ordinary flashes offer mainly variable flash TIME. The flash time of the LED flash is fixed at 1/100 sec, which seems to be the limit of the used controller. The LEDs itselves should be able to handle shorter times.

Using pTTL (not TTL!) could enable a LED flash to control flash intensity, and maybe flash time as well. But then the flashes would need the same electronics as the "real" pTTL flashes (minus the thyristor and the high voltage capacitor). But then I think no one could offer it for GBP 21 including shipment from China to Germany.

Besides the fact that you cannot use it for fast moving objects, the only minor problem I see is that the bandwidth of colour temperature maybe much bigger than with flash tubes. Of course never as big as with natural daylight, which is a mixture of all frequencies. With bad luck, the 2 sides of the flash could offer significant different colour temperatures, which could make WB somehow difficult. If it is roughly the same on both sides, it could be checked once with a grey card, and programmed (with my K200D, I could overwrite one of the seldom used WB presets).


Last edited by RKKS08; 03-22-2012 at 12:36 PM.
03-23-2012, 04:54 AM   #8
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Thanks RKKS08. One thing makes me wonder, however. This one seems similar,

LED Marco Ring Flash For Pentax PK k-r kx k-5 k7 645D | eBay

but look at the picture of the shoe mount:



There does seem to be the full array of Pentax pins. I might contact this particular seller to ask, just to be sure.
03-23-2012, 05:13 AM   #9
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Would be nice to know if those pins are fake or functional. Keep us posted...
03-23-2012, 11:04 AM   #10
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Too bad it doesn't have a 49mm adapter ring since that is such a common size with Pentax.
03-23-2012, 01:12 PM   #11
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QuoteOriginally posted by mattb123 Quote
Too bad it doesn't have a 49mm adapter ring since that is such a common size with Pentax.
A step-up ring will take care of that.
03-23-2012, 02:57 PM   #12
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@ bdery

"There does seem to be the full array of Pentax pins"
I cannot say it is impossible they offer pTTL, I just doubt it. I asked only two sellers which offered the "NIKON" version, and both said their flash is fully manual and can be used with every brand. The pictures of one of them also showed a shoe mount with just the X contact.
Of the 5 contacts you see one is the X contact (trigger), another one is a dummy one to lock the shoe on the mount, one provides the analogue "flash ready" signal introduced with the ME/ME Super (which may cause the camera to correct the exposure time, if supported), and #4 was used to signal after the shot whether lightning had been sufficient (not supported any more by Pentax, that's now all digital). #4 and #5 could indeed be related to pTTL (TTL would not make sense with a fixed flash time). Someone has to find out (probably not me, I have already ordered the all-brands manual one).
03-27-2012, 03:27 PM   #13
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Confirm meike unit is a flash & not just a light?

Can anyone confirm the Meike units are a flash & not just a constant light? Can the produce a constant light (modelling) for focussing before firing the flash?
03-28-2012, 07:58 AM   #14
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@ andrewb

I ordered it 1 1/2 weeks ago, so I expect it to arrive earliest end of this week. But it could easily be 4 weeks more, specially if German customs get involved. So I can only repeat what the specifications tell:

1. The Meike can be switched between modelling light and flash.
2. In both modes, light intensity can be set to any of 7 levels.
3. In both modes, one half of the LEDs can be switched off.
4. In flash mode, the flash time is fixed at approximately 1/100 sec.
5. In flash mode, the GN max. is 15, so it can offer slightly more light than the built-in flash of the Pentax DSLRs.

This means, in flash mode, with today's cameras, you are restricted to exposure times of 1/60 sec or longer.
Whether synchronisation with the special 1/100 sec x-flash exposure time of many older film bodies is good enough, must be tried out; it will depend on the camera as well as on the LED flash.

Last edited by RKKS08; 03-28-2012 at 09:12 AM.
04-13-2012, 09:12 PM   #15
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@RKKS08
I was looking at the Meike FC100 myself, so I am anxious to hear your review.
I did find one that indicated it was for Pentax...
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