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FORUMS Cameras, Lenses & Accessories Small Compact Digitals by Canon 
Thread started 15 Sep 2006 (Friday) 15:24
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A620 homemade ringflash attempt

 
dunker
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37 posts
Joined Aug 2006
Location: Wroxall UK
     
Sep 15, 2006 15:24 |  #1

i've been on the look out for a good candidate in the shops for ages, everything the right size is usually too clear but i spotted this.

IMAGE: http://img.photobucket.com/albums/v516/dunker/rf_001.jpg

it's pretty wide so it covers the flash nicely but i made the hole for the lens slightly too big so it needs to be stuck on with blu-tac. it's not a perfect light spread as there's a bit of left/right light/dark but it's alot better than without i think. i left the lid on and cut a hole in that too.

IMAGE: http://img.photobucket.com/albums/v516/dunker/screw_rf_001.jpg

pic about half-size, i just dropped the screw inside then put the lens through the hole and shot, it's like a mini light tent almost :)

IMAGE: http://img.photobucket.com/albums/v516/dunker/spider_rf_001.jpg

this guy is still hanging around on the corner of a door frame in my kitchen, it's been there nearly 24 hours now, shots before of it were at f/2.8 but with the ringflash i could put it in AV mode and use f/8 then experiment with the 12 flash settings, could only find 3 settings in manual mode for flash, dull-too bright-nuke, unless i'm missing something.

i'm still on the look-out for better pots to use maybe something a bit thicker will diffuse better?

Canon A620

  
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elise1030
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Location: Victoria, Australia
     
Sep 15, 2006 18:04 |  #2

Can you tell us how it is attached to yuor camera? I'm trying to visualize what it would look like and how infact it would work. I have an A610.


~350d -- kitlens -- ef 75-300mm -- A610~ 'thank you John'

http://www.flickr.com/​photos/elise1030/ (external link)

  
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dunker
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Sep 15, 2006 20:19 as a reply to  @ elise1030's post |  #3

small white pot, cut a hole in its bottom and slip it over the camera lens like this stuck on with a tiny slither of blu-tac. focusing can be more work though in very low light as the pot cuts off light coming in as you get closer, so manual focus is needed and a bit hit n mis.

IMAGE: http://img.photobucket.com/albums/v516/dunker/a620_mirror_rf.jpg

spotted my new pet, brian the web weaver on my way back so i snapped another of him :)

IMAGE: http://img.photobucket.com/albums/v516/dunker/spider_rf_002.jpg

he really likes his? door frame hehe

Canon A620

  
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Transit
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Location: Wanganui
     
Sep 16, 2006 00:22 as a reply to  @ dunker's post |  #4

Interesting set up :)
so the flash just shoots through the cover thus difusing it ?

Pete


Powershot A700
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TMR ­ Design
Cream of the Crop
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Sep 16, 2006 07:15 as a reply to  @ Transit's post |  #5

I've done something similar with a white styrofoam cup. It works fairly well.


Robert
RobertMitchellPhotogra​phy (external link)

  
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dunker
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Sep 16, 2006 07:39 as a reply to  @ TMR Design's post |  #6

styrofoam prolly works better i would think as it's thicker, i'll be on the look out for some :) you could also cut out a piece from another cup and stick it over part of the first cup that's nearest the flash so it's thicker on one side and might diffuse the light more evenly.


Canon A620

  
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dunker
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Sep 16, 2006 07:46 as a reply to  @ Transit's post |  #7

Transit wrote:
Interesting set up :)
so the flash just shoots through the cover thus difusing it ?

Pete

yeah exactly, without it flash is pretty useless for very close up shots as it just blows everything out plus a huge camera-lens shadow.


Canon A620

  
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elise1030
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Sep 16, 2006 07:58 |  #8

So is the flash on the outside of the 'ring' or on in the inside?


~350d -- kitlens -- ef 75-300mm -- A610~ 'thank you John'

http://www.flickr.com/​photos/elise1030/ (external link)

  
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dunker
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Sep 16, 2006 08:09 as a reply to  @ elise1030's post |  #9

elise1030 wrote:
So is the flash on the outside of the 'ring' or on in the inside?

it's on the outside, the pot/cup/ring covers the flash and as the flash fires the ring diffuses the light.


Canon A620

  
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TMR ­ Design
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Sep 16, 2006 08:51 as a reply to  @ dunker's post |  #10

It actually works pretty well. I also got fairly decent results using a white plastic cap from a can of spray paint. I don't get any shadows or vignetting and it does diffuse the flash pretty well it allows me to use flash indoors in lower light and get good color, contrast and exposure.


Robert
RobertMitchellPhotogra​phy (external link)

  
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dunker
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Sep 16, 2006 09:08 as a reply to  @ TMR Design's post |  #11

TMR Design wrote:
It actually works pretty well. I also got fairly decent results using a white plastic cap from a can of spray paint. I don't get any shadows or vignetting and it does diffuse the flash pretty well it allows me to use flash indoors in lower light and get good color, contrast and exposure.

did you expermient at all with 1st or 2nd curtain settings? would that make any difference in lighting?


Canon A620

  
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TMR ­ Design
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Sep 16, 2006 09:56 as a reply to  @ dunker's post |  #12

I played a bit with that and for the most part I could not detect a difference. There were times that it seemed to be better lighting and better exposue when I used 2nd curtain.


Robert
RobertMitchellPhotogra​phy (external link)

  
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Action_Man
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Sep 16, 2006 15:34 |  #13

I initially thought this was a crazy idea but i thought i would try it anyway, the two shots below are vIrtually unprocessed other that one simple sharpen each.

I only experimented for a few minutes and will look into it further tomorrow :) ...

Hand-held plus on-board flash with no attachment.


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Hand-held plus on-board flash and ring-flash attachment.

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elise1030
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Sep 16, 2006 16:35 |  #14

I think I'll give this a go later with a styrofoam cup. I'll post some of my pics as well to show you my results of the experiment :D


~350d -- kitlens -- ef 75-300mm -- A610~ 'thank you John'

http://www.flickr.com/​photos/elise1030/ (external link)

  
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Gabbana
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301 posts
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Location: Arizona
     
Sep 16, 2006 17:27 |  #15

cool idea.




  
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A620 homemade ringflash attempt
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