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> Just to share my DIY project, DIY 2 : Ring Flash Adaptor

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xxx2299
post Jul 1 2007, 10:52 AM
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I was taking some flower pictures at night but the light from flash could not lightup the flower properly, hence I built this ring flash adaptor of mine.

the picture that made me DIY this ring flash adaptor:
user posted image

So i spent some hours DIY this ring adaptor.

Basically, it diverts the light from normal flash to lightup area around the lens.

material used:
3 x liquid medicine bottle
1 x cover of plastic container
some tape
black & white paint

1. I did not take the step by step photos. completed prototype 2. first prototype was simply paper & container cover.
user posted image

2. the adaptor fits nicely onto the flash unit with a soft snap mechanism
user posted image

3.setup on the camera
user posted image

4.test result from the setup (not as good as first prototype)
user posted image
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calvin_gsc
post Jul 1 2007, 11:17 AM
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QUOTE(xxx2299 @ Jul 1 2007, 10:52 AM)
I was taking some flower pictures at night but the light from flash could not lightup the flower properly, hence I built this ring flash adaptor of mine.


» Click to show Spoiler - click again to hide... «

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Wont you lose a lot of light from the diffraction in the medicine bottles?

Your photo still doesn't look very sharp.

This post has been edited by calvin_gsc: Jul 1 2007, 11:18 AM
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zx7177
post Jul 1 2007, 12:26 PM
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maybe can try lining the inside of the medicine bottle with aluminium foil or something
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xandman
post Jul 1 2007, 12:39 PM
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When Darkness is the only Light U See.
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agreed...
try lining the inside with crumpled aluminium foil...to reduce the harshness of the flash produced...
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C-Fu
post Jul 3 2007, 01:09 AM
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to reduce the harshness, better to use a diffuser. cheaper and easier and more practical that way, imo.

but plastic container just doesn't cut it. its like the light from flash is 100% then the brightness and everything got raped to something lower tongue.gif

get a metal container, then polish it. at least its better that way.

the use of crumpled aluminium foil would result in a scattered light AFAIK, not diffused light.

This post has been edited by C-Fu: Jul 3 2007, 01:10 AM
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cjtune
post Jul 3 2007, 01:24 AM
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xxx2299
post Jul 3 2007, 07:03 AM
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cjtune, no pain no gain.

and i m waiting for a free piece of alu foil from my mother-in-law (not going to buy one box just for this purpose) brows.gif
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cjtune
post Jul 3 2007, 11:12 PM
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Melancholic frog
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QUOTE(xxx2299 @ Jul 3 2007, 07:03 AM)
and i m waiting for a free piece of alu foil from my mother-in-law (not going to buy one box just for this purpose)  brows.gif
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Make sure you clean off the cooking oil grease... tongue.gif
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xxx2299
post Jul 12 2007, 11:00 PM
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as promised (to myself biggrin.gif ), i hv added alu foil into the ring adaptor, and below is the result.

feedback & cnc are very much welcomed.

1. before modification
user posted image

2. after add alu foil, all the way to the ring
user posted image

3. flower test shoot, too bright, causing reflection of the lens on the uv filter
user posted image

4. so add white A4 paper to reduce flash power
user posted image

5. and the final flower test shoot; note reflection still present, more modification on the way
user posted image
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beehawk
post Jul 13 2007, 08:29 AM
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nice mod....din think that this can be done...but only for close up....
losing a lot of lights there.....but too much with ur alu foil...
smile.gif
nice try
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cjtune
post Jul 13 2007, 03:58 PM
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Melancholic frog
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Why don't you just dial-down the flash output (by maybe -1 EV) instead of sticking white paper?
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xxx2299
post Jul 13 2007, 05:27 PM
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beehawk, yup, this was made for the sole purpose of closeup shots...

cjtune, err . . . never thought of that, will try it out later...
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