Diffuser material

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Archive 2009 · Diffuser material

Santosh
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p.1 #1 · Diffuser material

The diffuser material used by Sto-Fen or in PUFFER - Pop-Up Flash Diffuser, is it special material ie if I use white plastic will it give same results ?
This what I'm using,
http://picasaweb.google.co.in/sdgavali/FrozenInTime#5390822585297539634

Nov 05, 2009 at 07:24 AM

LordV
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p.1 #2 · Diffuser material

I suspect it's not that special but may have been checked for any strong colour absorbtion - some plastics will absorb certain colour frequencies. Many people use plastic bottles of varying types for diffusers.
You can check both for colour absorbtion and light loss by taking a series of photos with the flash in manual and use a series of different flash durations (eg 1/64,1/32/,1/16, 1/8 both with and without the diffuser. By comparing shots with equal exposure you can work out the light loss (normally between 1 and 2 stops) and by comparing the colour histograms you should be able to see if they have been changed significantly. Obviously you need to judge the diffusion achieved visually yourself.

Brian V.

Edited on Nov 05, 2009 at 09:39 AM · View previous versions

Nov 05, 2009 at 07:42 AM

MarkB1
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p.1 #3 · Diffuser material

I have found hard plastics don't diffuse too well or just stop the light, though I have to say I never bought any supposedly designed for the job. I get decent results with white synthetic stiffening material from the haberdashers. The off-white or natural fibres will colour the light.

Mark

Nov 05, 2009 at 09:33 AM


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