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Old Aug 30, 2009, 8:14 PM   #1
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HERE"S a new one.
don't know how it works but i've got an idea using fiber optics
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Old Aug 30, 2009, 9:28 PM   #2
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Looks like it would work.
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Old Sep 6, 2009, 6:35 PM   #3
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HERE"S a new one.
don't know how it works but i've got an idea using fiber optics
it is a cheaper version of the one Canon and Nikon - mirrors and prisms..

The fibre optic route has several variants on the net, and I have built a couple myself (materials are easy as I work for a data cabling company) but I found them far too fiddley to be practical, and went back to a flash with diffuser and a couple of brackets..
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Old Sep 16, 2009, 6:40 AM   #4
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I found this an intriguing product and perhaps a cheap alternative to a more expensive ring flash, which I don't have a need for too often, so I ordered one. It got here this week, and I haven't had the time (and the weather's been lousy) to really put it to the test. However, preliminary tests have been very encouraging. I found I had to go to manual exposure to keep it from overexposing, but that's not a serious flaw. I hope this weekend to do some shots with it that will give it a better test. If I get anything worth viewing, I'll post.

Paul
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Old Sep 19, 2009, 3:44 PM   #5
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To be honest, if you have to use manual exposure, then you might as well get one of the Starblitz ringflshes for around 35 on eBay

I have one of those and it works great on manual
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Old Sep 20, 2009, 2:03 PM   #6
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I found this an intriguing product and perhaps a cheap alternative to a more expensive ring flash, which I don't have a need for too often, so I ordered one. It got here this week, and I haven't had the time (and the weather's been lousy) to really put it to the test. However, preliminary tests have been very encouraging. I found I had to go to manual exposure to keep it from overexposing, but that's not a serious flaw. I hope this weekend to do some shots with it that will give it a better test. If I get anything worth viewing, I'll post.

Paul
paul,
looking forward for your evaluation
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Old Sep 20, 2009, 2:04 PM   #7
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To be honest, if you have to use manual exposure, then you might as well get one of the Starblitz ringflshes for around 35 on eBay

I have one of those and it works great on manual
D,
where did you get the fiber??
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Old Sep 21, 2009, 2:29 PM   #8
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I get the fibre from work

I work for a data cabling company, so there is always drums of fibre around, normally around 12 core and 24 core
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Old Sep 25, 2009, 10:08 PM   #9
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I haven't had a lot of time to play with the ring adapter, but because of Dal's concern about having to go manual with it, I tried a couple of shots of my son's cat who is living with us while he's working overseas. These are with the K20 (I used it because I had the Tamron 28-75 f/2.8 already mounted.) on full green mode and P-TTL on the flash.




I took some of my wife, but she demanded erasure as a price of my getting to sleep on my side of the bed tonight. I was overall quite pleased with the outcome.

Paul
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Old Sep 26, 2009, 9:33 PM   #10
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I played a little with the set-up today with a few macros of a moth and a spider. The photos are in the main Pentax DSLR's forum. This is what the set-up looks like on the K20 with the Tamron 28-75 lens and the Pentax 540 flash.




The housing doesn't really look that blue until you shoot it with the on-board flash of the K-7.

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