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Pop up flash diffuser

PostPosted: Mon Apr 21, 2008 9:35 pm
by Justb
Hey everyone,
Has anyone here used a pop up flash diffuser before. I have no real need for a hotshoe flash atm. Anyone got tips on making one or used any good products before

Re: Pop up flash diffuser

PostPosted: Mon Apr 21, 2008 10:25 pm
by chrisk
theres heaps of home made jobbies to be had. i used to use an empty film container back when i used film. i've also seen the handle of a 2ltr milk container used.

Re: Pop up flash diffuser

PostPosted: Tue Apr 22, 2008 11:04 am
by Mr Darcy
It can be as simple as draping a tissue over the top.

Re: Pop up flash diffuser

PostPosted: Tue Apr 22, 2008 2:26 pm
by chrisk
teabag...

Re: Pop up flash diffuser

PostPosted: Tue Apr 22, 2008 2:39 pm
by ATJ
Note that for a diffuser to be really effective it needs to spread the light over a larger area as the light source.

By default a flash is a point light source and you need to convert it to a light source which starts from a larger area. This is the principle behind a soft box. The diffuser needs to be larger than the flash head and far enough away from the light head so that the light from the flash spreads before it hits the diffuser.

Re: Pop up flash diffuser

PostPosted: Tue Apr 22, 2008 3:00 pm
by kiwi
Try a ping pong ball, don't laugh, it really works

Re: Pop up flash diffuser

PostPosted: Tue Apr 22, 2008 3:41 pm
by Pa
I've used a piece of white paper to divert to a wall or the ceiling to spread the light...had some good results.

Re: Pop up flash diffuser

PostPosted: Tue Apr 22, 2008 5:21 pm
by Steffen
Wasn't there a SpeedLight once that had a fold-down diffuser for the built-in flash? It looked like a good idea at the time, but I don't think the SpeedLight was all that powerful.

Cheers
Steffen.

Re: Pop up flash diffuser

PostPosted: Tue Apr 22, 2008 5:40 pm
by ATJ
Steffen wrote:Wasn't there a SpeedLight once that had a fold-down diffuser for the built-in flash? It looked like a good idea at the time, but I don't think the SpeedLight was all that powerful.

SB800 has that. Problem is that unless you have the flash pretty close to the subject, it still works as a point light source and provides little benefit other than increasing the field of coverage (i.e. when using a wide angle lens).

Re: Pop up flash diffuser

PostPosted: Tue Apr 22, 2008 6:11 pm
by Steffen
ATJ wrote:
Steffen wrote:Wasn't there a SpeedLight once that had a fold-down diffuser for the built-in flash? It looked like a good idea at the time, but I don't think the SpeedLight was all that powerful.

SB800 has that.


Ah, that's not what I mean. There used to be a SpeedLight with a diffuser card that folded over the built-in flash.

Cheers
Steffen.

Re: Pop up flash diffuser

PostPosted: Wed Apr 23, 2008 1:56 am
by jammy2
Here a review of an interesting diffuser for pop-up flashes called the lightscoop. Not sure if the device is available here but been meaning to try to replicate the results by rigging the right-angled accessory often provided for scanning slides on a flat-bed scanner =)

The review link
http://www.camerahobby.com/Access_Lightscoop.html

cheers,
Ken

Re: Pop up flash diffuser

PostPosted: Wed Apr 23, 2008 9:20 am
by ATJ
Looks like the Lightscoop can be purchased online: http://lightscoop.com/

Note that the Lightscoop is more about bouncing the light and getting the diffusion that way, rather than a straight diffuser like a soft box. It would be fairly easy, even with cardboard, to make something that is the same basic shape that works as a diffuser/softbox.

mmm... long weekend coming up, maybe I have a project. :up:

Re: Pop up flash diffuser

PostPosted: Fri Apr 25, 2008 1:32 am
by bloop
http://www.dealextreme.com/details.dx/sku.10920

I am just about to order one, can't go wrong at that price really.

Re: Pop up flash diffuser

PostPosted: Fri Apr 25, 2008 3:30 am
by Steffen
Looks like a cool gadget, too cheap not to own. I think I'm going to order one, too, once I found out about the shipping cost and whether it is available from a local supplier...

Cheers
Steffen.

Re: Pop up flash diffuser

PostPosted: Sat Apr 26, 2008 11:45 am
by Joshman
hey, i have plans to make one out of cardboard later on today. i plan to make 2, both will be for bouncing light onto a wall or ceiling,, but one will be for bouncing the light up and one for bouncing the light sideways.

i'll let you know how i goes with my efforts. :D

Re: Pop up flash diffuser

PostPosted: Sun Apr 27, 2008 10:59 am
by Joshman
hey guys, here's my pop-up flash diffuser that i whipped up yesterday, i didn't get around to making the sideways one, but it's still on the cards to do.

i drew and cut out my design on whitepaper first then, simply glued it over the top of a piece of black card, then re-cut it out. not the fastest, neatest or more efficient way of doing it, but it works well enough.

the diffuser
Image

test shot of freaky gnome, without diffuser
Image

test shot of freaky gnome, with diffuser
Image

Re: Pop up flash diffuser

PostPosted: Sun Jul 27, 2008 7:29 pm
by StarForge
How well does that paper diffuser fold up for travel? Do you have any other photos of it from another angle?

Re: Pop up flash diffuser

PostPosted: Sun Jul 27, 2008 10:16 pm
by Joshman
lol, never bothered to design it for travel, it was a stop gap till i could afford a hot shoe flash.

now i just point the articulated head at teh roof.

sorry.

Re: Pop up flash diffuser

PostPosted: Sun Jul 27, 2008 10:22 pm
by StarForge
Hehe no problem mate, I was just wondering :D