GESO - Balancing flash with available light

[Paul Stenquist]

Interesting. And a nice shot.
On Jun 2, 2008, at 12:15 AM, Christine Aguila wrote:

> George:  Thanks for posting this.  Very interesting drill.  I might  
> give it
> a go with my flash.  Cheers, Christine
>
>
> ----- Original Message -----
> From: "George Sinos" <gsinos at gmail.com>
> To: "Pentax-Discuss Mail List" <pdml at pdml.net>
> Sent: Sunday, June 01, 2008 11:14 AM
> Subject: GESO - Balancing flash with available light
>
>
>> Balancing flash with available light.
>>
>> This is a gallery of a few shots put together for a class drill.  The
>> idea is to light the foreground subject with the flash and the
>> background with available light.  The lightness/darkness of the
>> background is controlled by changing the shutter speed. The aperture
>> is held constant for all photos. The P-TTL flash keeps the subject  
>> lit
>> at the desired level.
>>
>> For the Pentax folks here's a little additional info.
>>
>> The Flash is a 540 set in the wireless mode.  It's set to +1/2 stop
>> flash exposure compensation.  It's zoomed in as far as possible to
>> narrow help keep light from spilling onto the background.  There are
>> only seven images in the gallery, but I did a lot of experimenting  
>> and
>> fired the shutter just short of 100 times.  The flash is very  
>> close to
>> the subject so it probably didn't need to use much energy.  Even when
>> I was experimenting with very small apertures requiring noticeably
>> more powerful flashes the flash recycled almost immediately.  The AA
>> alkaline batteries seemed to work OK for this application.
>>
>> The lens is the DA* 50-135mm f/2.8.  The focus point is the black
>> queen in the back row.
>>
>> The camera is the K20d, flash set to wireless control mode.  Manual
>> mode for this series.  Though I had set the white balance to  
>> daylight,
>> it didn't make any difference.  I had custom setting at "WB auto when
>> flash attached."  I've since set it to "unchanged" so it will use the
>> WB as set on the camera.  No matter, I was shooting raw files.
>>
>> Here's the link
>>
>> <http://Georges.smugmug.com/gallery/5066768_nv8WE/1/304882093_iUGLx>
>>
>> Oh, the opening image documenting the setup was shot with a Canon G9.
>>
>> This was time well spent, if only to learn about the custom settings
>> on the camera and flash that interact.  I've only had the K20 and 540
>> for a short time.
>>
>> GS
>> <http://www.georgesphotos.net>
>>
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