Construct your own flash diffuser

Posted by Haje Jan Kamps

Tired of harsh flash, but not feeling like paying up for an expensive flash diffuser? There are dozens of way you can accomplish this yourself, but few are as cheap as the version Ed Perchick has cobbled together - built out of a plastic milk jug!

by Ed Perchick
(visit Remez Media for Ed’s website)

Step one of this trick is to procure a jug of milk - if you are based in a country where these are impossible to get, use anything else that is semi-stiff, semi-translucent plastic. If all else fails, some medium-thick builder’s plastic is perfectly usable.

Empty the milk jug - preferably by drinking the milk. (it’s good for you, and goes great in hot drinks, cereal, or milkshake.)

Wash the milk jug thorougly with warm soapy water - there’s nothing worse than a photographer who stinks of milk that has gone off! Anybody who has ever done experiments with photographing milk drops under hot lights knows how unpleasant it is.

Cut the top off the milk jug, and cut vertical slits long enough for your flash head to be far enough in, so that you can securely attach it with the elastic bands. If you want a more professional-looking version, some velcro can be used instead.

You may want to taper the corners, but that is essentially it. The time is spent tweaking it once the major work has been done.

Slip the tabs you cut, through the rubber bands, and your work is done. The image on the right shows approximately how your flashgun should look.

How and why it works

Diffusing light is essentially just the action of making sure that light that once was directional gets bounced in all sorts of directions, by letting the light come from a source that is “bigger”. This means that shadows will be less pronounced, and you get more of an “omni” light source, which comes from all directions.

So how well does this cheap light diffuser work? Pretty well, actually! On the right, there are some images which hopefully can give you an idea of how well it performs.

First, how my test subject looks with direct flash. As expected, the result this is nasty - lots of harsh shadows, and blown highlights.

Next, if we bounce the flash off the ceiling - a lot better, as there are no harsh shadows behind the subject, and no burnt out highlights on the model. However, the eyes are very dark and the shadows on the model itself are ominous, but that wasn’t what we were looking for. Furthermore, the filing cabinet is taking all the light.

Finally, the diffuser. This image displays the flash bounced off the ceiling, combined with the milk jug diffuser - The result is a combination of the two photos above, and the result looks very sharp. The subject is well lit, and whilst there are shadows behind, they are softened around the edge.

Conclusions - a light diffuser just needs to do that - diffuse light. The larger the surface area of the item you sent the light through, the more the light is diffused. A milk jug works relatively well.

The downside is that it does not look particularly professional, and you may not want to show up at a wedding with one of these. It’s a great party trick for taking photos of family, and friends. It works nicely, and can be replaced or repaired for next to nothing.

Good luck building your reflector!

Did you like this post? Stay in touch!

If you liked this post, why not stay in touch with Photocritic going forward?

I'm on Flickr and Twitter, or you could add my RSS feed to your favourite feed reader. Or, if you don't fancy doing any of that, drop us a comment below; you can be anonymous if you want to, but if you add a link to your blog or similar, I'll promise I'll come have a look!

Money made from this advert will be invested in beer.
Posted in: All articles • 16 Dec '05

Insights, suggestions and comments

By Brian Hardy on February 9th, 2006 (permalink)

I’ve taken some concert shots using the built-in flash on my Canon Digital Rebel, with a cocktail napkin taped or folded around it to dull it down a little bit. It seems to work rather well, as can be seen in this set.

I’ll have to try this milk jug tech though.

By Igor on February 10th, 2006 (permalink)

I have used semi-tranparent “invisible’ office tape attached directly to flash, but not sure that it doesn’t damage flash surface, in my case it was cheap camera, and it’s worked.

By Ed Perchick on April 3rd, 2006 (permalink)

I’ve found that the results from the milk jug are as good as from a Stofen Omnibounce (which I’ve since acquired). The downsides are that it is not as portable in terms of size, and of course, it doesn’t look as ‘professional’. Otherwise, it works a treat :)

By Frank on June 15th, 2006 (permalink)

This is a GREAT site!
I started a thread in the Photography-on-the.net forum: Do you Cobble? (Slide duplicator)
http://photography-on-the.net/forum/showthread.php?t=58609

It includes a Slide duplicator, extra hands, & other hacks contributed by the members. You’re welcome to link to it if you’d like.
One downside is that the images are attached through the host, so they can’t be seen unless you join, which is free.
(Not trolling for new members here; we already have over 60,000) ;)

By Marcel Thomassen on December 1st, 2006 (permalink)

Hi, I have made a diffuser/softbox myself. I have made a page with instructions step-by-step how to do so. Perhaps it can help others if they want to make one.
Her is the page : http://www.design-daveluy.com/diffuser
Txs Marcel.

By Jayce on December 8th, 2007 (permalink)

Great idea. :)

By ML1986 on June 26th, 2008 (permalink)

I made a much smaller modification to the whole milk jug idea. Basically, my flash diffuser was custom built so that it could easily be installed or removed from my Vivitar 151 flashgun. I made it so that it would be about 1 inch deep, allowing me to adjust the diffusion if necessary. The best things about my flashgun are: 1. It has a force flash button, so before I would take the actual picture, I can adjust the diffuser to match the desired lighting effects before I use up an exposure; 2. It comes with an AC adapter, so charging only takes about 2 seconds; 3. Since it is detachable, I can aim the flash gun in any direction I like.

By scott on August 22nd, 2008 (permalink)

Buy a small bottle of alcohol from the drug store, the bottle is just about a perfect fit over a flash head. Slowly cut the top of the bottle, at the taper, until it fits snuggly on your flash. Mine slides on and off with no tape, rubber bands or velcro. The translucent plastic makes a great diffuser in about two minutes. I think it works better than the Omni Bounce.

 

Share your wisdom



Current Poll

By the end of the month, will you own an iPhone?
View Results

My recent Flickr favourites

Sweet as sin and black as hell©ashley suzanne taylorWalt Disney Concert Hall 2Caressed by the Sun IIIPale LifeBorage flower"Between the lights and the shadows, a woman sits"End of Day (II)Midsummer!Hair Trim (87/365)Rocas ValleThe Netherlands, insidePaint the town Pink.Have a good day!DSC_4102Bending The Laws of Gravity
See all my Flickr favourites here

My recent Flickr uploads

near Swingate, ENG, United KingdomWarmenhuizen, North Holland, NetherlandsKorrewegwijk, Groningen, Netherlandsnear Ladegårdshuse, Roskilde, Denmarknear Hornstrup, Vejle, DenmarkVejleHolmenkollen, Oslo, NorwayRogaland reflected in an Arai
See my Flickr galleries here

Photocritic on Twitter...

  • Jul 5 tweet: 58 crazy-good photography tutorials has lots of good tips (and features one of mine at #40 :) http://is.gd/1nPHc (link)
  • Jul 5 tweet: Awesome photograph by the lovley @phototropy; Sweet as sin and black as hell http://is.gd/1nyDp (link)
  • Jul 3 tweet: http://bit.ly/v7PfR was nominated to become a Twitter tee - feel free to vote it down if you think it's lame! :) (link)
  • Jul 2 tweet: "We shot 50,000 pix, printed 8,000 of them and shot another 1,800 pictures" - http://is.gd/1lTrX (YouTube video / stop motion animation) (link)
  • Jul 2 tweet: I failed to notice that I now have over 3,000 followers! I'll do my best not to disappoint, stay tuned for Photocritic updates soon. (link)
  • Jul 2 tweet: The Human Printer 'prints' photographs in CMYK using felt-tip markers. Bonkers, but very cool: http://is.gd/1li3D (link)
  • follow @photocritic on Twitter!

My book

macrocover.jpg
... is now available from »Amazon.com and »Amazon.co.uk, too!

About

This site is all about learning more about photography, from the incredibly insightful (rarely) to the dreadfully mundane (also, hopefully rarely) via just about everything in between.

If this website seems a little whimsical and random, then that's because the author of this blog, who for the occasion is confusing himself by writing about himself in the third person, is slightly whimsical and random himself.

Enjoy!

- Haje