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Re: [OM] No flash?

Subject: Re: [OM] No flash?
From: philippe.amard@xxxxxx
Date: Thu, 20 Feb 2014 21:10:57 +0100 (CET)
Perhaps he just wanted to demonstrate he was a pro - some clients pay for that 
too 


Cheek around tongue Philippe




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Message du : 20/02/2014 19:53
De : "Chuck Norcutt " <chucknorcutt@xxxxxxxxxxxxxxxx>
A : "Olympus Camera Discussion" <olympus@xxxxxxxxxxxxxxxxx>
Copie à : 
Sujet : Re: [OM] No flash?


 He was using the flash to soften the hard shadows cast by the bright 
sun.  The large reflector was to soften the hard light from the flash. 
A small diameter light source or, even a large one if it's far enough 
away (like the sun) tends to be what's called a "point light source". 
Point light sources cast harsh shadows.  Any way you can make the light 
source of larger diameter or larger angular diameter (coming closer 
works) will make a softer light.  The bigger the reflector or diffuser 
and the closer it is (larger angular diameter) the softer the light.

But diffusers that are large can be cumbersome and coming closer 
exacerbates the inverse-square law problem.  One solution to minimize 
the inverse square law problem is to get farther back.  That, of course, 
worsens the flash angular diameter problem.  But that can be helped by 
using a very large diffuser... called the ceiling.  Using the ceiling as 
a reflector/diffuser also helps the inverse-square law problem by 
extending the distance the light has to travel.  But using the ceiling 
causes shadows to be cast under the eyes, nose and chin so you also need 
to throw some light forward to act as fill light... either by reflecting 
part of the main beam forward rather than up or by using a second light 
for fill.

Dr. Flash


On 2/20/2014 9:52 AM, bj@xxxxxxxxxxxxxxx wrote:
>
>
> At my son's wedding on the beach, the official photographer, who was
> as I seem to recall using a Sony camera, used a flash with a large
> reflector when taking many of his shots.
>
> The bright sunlight gave very
> contrasty conditions.
>
> I have not yet, as far as I know, seen any of
> his results yet.
>
> Brian
>
>
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