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Pretty good, looks like some nice even light distribution. Can you take a picture of the flash at low power? How many stops did you have to go down?
As far as getting catchlights, you'll just have to get closer to the flash ... :)
Originally posted 55 months ago.
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Jay in Frederick edited this topic 55 months ago.
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The hair looks like it's cut out from another background:)
Posted 55 months ago.
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yes, actually looks like the shadows have been edited/ cloned out, to the left of the picture, a halo effect!?
Posted 55 months ago.
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Hugo, MickF,
No, that's the kind of shadowing effect you get from a ring flash that size.
The shadows might be less prominent than in other ring flash photos because he was standing close to the background wall. Could you confirm this, noid?
Originally posted 55 months ago.
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Jay in Frederick edited this topic 55 months ago.
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yes jay, just moving a step from the wall the halo become more visible
dunno the difference in stop with a bare flash...i've to test
this is an image of the flash at 1/16 (f22)
Posted 55 months ago.
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looks really even
Posted 55 months ago.
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This looks great. Are you going to create a larger version next? What is this made out of?
Posted 55 months ago.
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This looks like one of the best designs around, care to share the process on how to make our own?
Posted 55 months ago.
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As a practical matter, the evenness of the light will fall off as the ring gets bigger, light source remaining constant.
Posted 55 months ago.
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i used a 3mm foamcore for up and bottom layer, drawing paper for the inner tube and perimeter (covered with aluminum foil) and a sheet of thick plastic (1mm) as diffusion material...it's something i've found at ikea...it's used in the kitchen to cut things on..sorry for my english, dunno the name :) )
Posted 55 months ago.
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@noid: Chopping board. :-)
Posted 55 months ago.
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thanks jon :D
Posted 55 months ago.
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This one does look like the best one yet....hmm....I think I may attempt to build this one....great job man!
*EDIT*
Whats the diameter?
Originally posted 55 months ago.
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Nicholaus Haskins edited this topic 55 months ago.
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12cm the inner ring, 20cm the outer
Posted 55 months ago.
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Really slick design. You could name this an iRingflash, just to annoy that fruit company that makes computers for simple people.
It is hard to judge the evenness of the ring, as all of the diffuser is blown out. A more underexposed shot would better reveal the difference in light level between lower and upper part.
Posted 55 months ago.
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mtreinik: I've never seen a single-light design that had less than ~1.5 stops of falloff opposite the flash entrance. You're right that we can't really tell the falloff on this shot as the highlights are blown most of the way around the ring. You can see some falloff on the top already, leading me to think that this design is more of the same stuff we've been doing, only pretty in white plastic. :)
Posted 55 months ago.
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i can't go down further, this is the same photo above with a -4 exposure set in lightroom, now the difference is visible
Posted 55 months ago.
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>this design is more of the same stuff we've been doing, only pretty in white plastic. :)
@bdjohnson79, obviously i've invented nothing! :)
btw i expected worse results, to play with a little ring light can be enough :)
with the next one i'd like to try a design proposed in another thread...with the top part thinner...someone have done something similar?
Posted 55 months ago.
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Yeah, it's been called the "inverse square law" ring, but I think that that's a misnomer. In that type of ring, the surfaces start acting like a parabolic and focus some of the light to the farside of the inner hole.
I've got this, I'll need to put a translucent sheet in front for the light distribution since it uses a clear diffuser ...
Originally posted 55 months ago.
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Jay in Frederick edited this topic 55 months ago.
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In order to get the light uniform you have to make the circles NON-concentric like here (click image for construction shots):
lactose.blogspot.com/2007/11/ring-flash-classic.html
it even works on really large sizes,
the large sizes are also PERFECT for the catch light in the eyes
Originally posted 55 months ago.
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lactose edited this topic 55 months ago.
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lactose,
How about a few test shots at lower power to see the light distribution?
Posted 55 months ago.
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@ jay it seems that with a translucend diffuser you should end up with a pretty even light distribution!
@ lactose...interesting idea, have you other pictures made with the bigger version?
Posted 55 months ago.
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noid..again....thanks for posting this....you've inspired me with this design.
I've really been thinking about this a lot, and I really think it could work. I'm off to Home Depot today to pick up some aluminum, or sheet metal or something for the casing.
In terms of light distribution, size, and appearance, its rather perfect IMO.
Do you have any shots up against a wall to see what the shadows look like? Much appreciated!
Posted 55 months ago.
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noid,
for my purposes the translucent diffusing material would be for showing how even the lighting is, since the plastic I'm using is clear. It may or may not even out the distribtion some by reflecting some of the light back into the ring, but that would also cut down on the total light out of the ring, too.
Posted 55 months ago.
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What would happen if you put a narrow V of foil in there a bit off the light just below the ring?
Originally posted 55 months ago.
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Marsh Rabbit edited this topic 55 months ago.
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Heh, I got the same set of chopping boards from Ikea, with DIY in mind. The blue one went to the kitchen, and the white one is being kept safely.
Posted 55 months ago.
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How does the size of the ring flash affect the actual look on the model?
Anyone have comparisons?
Posted 55 months ago.
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@rabbit it's something i'm gonna try
@james a bigger one i guess will make softer shadow and an easily visible catch light
Posted 55 months ago.
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i have to agree with Hugo... looks like there one layer on the white background.
@ James yes and no. I think that if your ringflash is strong enough then i don't think size matters. If you can adjust the watts the it would be the best ...
Posted 55 months ago.
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James,
Depends on size of ring flash and distance to model.
If the ring size is the same size or larger than your framed subject, the shadow behind will be minimized. If the ring size is smaller, a "shadow halo" will surround the subject.
As you move further away from the subject, the ring flash begins to approximate a point-source of light -- of course, you also start to lose intensity according to the inverse square law (which applies only to point sources).
Distance will also affect the quality of shadowing. The closer the subject is to a background, the sharper and shallower the shadow. The further the ring flash is away from the subject, the shallower the shadow, too (the further you move away from a point source, the rays hitting the subject begin to approximate parallel rays, as opposed to radial rays), though sharpness is affected by the loss of intensity.
Originally posted 55 months ago.
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Jay in Frederick edited this topic 55 months ago.
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noid....you inspired me man!
Posted 55 months ago.
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