The converted ball plastic light covers are sold as standard diffuser products,
by at least one of
the well known studio flash vendors.
The very large plastic balls are difficult to find in hardware stores where I
live, they have the
small plastic ones and the large glass ones.
I used to use 1.5'x1.5' polyethelene foam bags on my potato masher flashes. A
1.5mm thick bag is
stiff enough to stand vertically when placed over the vertical pointing head,
and makes a good
diffuser, if a little inefficient. Looks very impressive when they flash.
Tim Hughes
--- Andrew Fildes <afildes@xxxxxxxxxxxxx> wrote:
>
> The main problem with my old Bowens 2000 kit is reducing the power!
> Minimum setting is 500w/s unless I use the splitter and run two heads
> off one pack. If I want to use a wider aperture than f11, I have to
> back them off a fair way! I'm considering making some large diffuser
> screens to knock it down a little.
> My mate Dean, the only camera manufacturer in Australia to my
> knowledge has come up with a neat idea - he makes ball diffusers for
> use with regular camera strobes off the shoe. Easy with the Chinese
> transmitters.
> http://homepages.ihug.com.au/~razzle/Flashball/flashball.html
> I couldn't work out how for a while because all the diffuser balls in
> my local stores are made of glass and quite yellow and his are
> plastic and cool white. Then I cracked it - he uses the ones off
> outdoor lights - two departments over in the hardware megastore. He
> cuts them and fits grippy rubber foam throats and a velco strap.
> Works rather well although he's a better mechanic than photographer.
> Not hard to make and a neat idea - I'm fitting a large one (there are
> three sizes I've seen) to an old Hensel monoblock to use as a single
> source, as I can't get reflectors for it.
> Of course, if you're here in Aus. you should buy from him and avoid
> the bother. :-)
> This is his home site -
> http://homepages.ihug.com.au/~razzle/index.html
> I mention him occasionally because I'm in awe of what he does. I've
> seen the 4x5 chome of the girl on the home page, shot with the bog
> standard Rodenstock 127mm on 100VS. The detail and colour is awesome.
>
> Andrew Fildes
> afildes@xxxxxxxxxxxxx
>
>
>
> On 29/06/2008, at 3:27 PM, Tim Hughes wrote:
>
> > People often don't realize one of the advantages of an even larger
> > diffuser like an umbrella is it
> > greatly reduces inverse square law effects, provided the subject is
> > within ~2 diameters of it.
> > The same is even more true for ambient fill with a flash bounced
> > off the walls in a room.
>
>
>
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