If the light line is in front of the figure, then the flash fired at
opening and the shutter speed was quite slow.
Assuming the woman was walking at 1 mile per hour ( very slow walk
but appropriate for a church ) then you can estimate the shutter speed used.
From the distance between pews, you can get the total distance
covered in the shot ( shutter time open ).
So, assuming that the distance is 15 feet or so, then 1 mile per hour
= 1.5 feet per second and the shutter open time would be 10 seconds.
For a faster pace, use 1.5 feet per second for each mph of walking speed.
The ghostly appearance is due to the flash exposure being combined
with the time exposure.
If you have time and a digital camera, you can experiment with flash
intensity and total exposure ( shutter / f/stop ) to see what flash
intensity matches the overall exposure without flash.
Hope this helps.
James
At 06:42 PM 9/8/2008 +0100, you wrote:
Thanks andy,
The trail of the torch doesn't lag behind, it goes in a wavy line in front
of the figure. Also, there is no motion blur in the figure of the person,
just that she is see-through where there is bright light behind her...
Does that shed any more light on it? (if you pardon the pun...?)
Jonathan.
On 8/9/08 17:36, "ADavidhazy" <andpph@xxxxxxx> wrote:
> Jonathan,
>
> I suspect that it depends on the camera. If yours has rear
curtain sync built
> in then
> you could always slave a studio flash to the on-board flash.
>
> The shot was made using rear curtain sync if the trail of the torch lags
> behind the figure in motion.
>
> andy
>
>
> jonathan turner wrote:
>
>> Hello,
>>
>> I've been asked to re-create a shot by another photographer for a job
>> tomorrow evening.
>>
>> The picture is shot in a church (quite dark and lit with ambient
light) and
>> has a woman with a torch, who appears to have a ghostly quality about her
>> (she is 'see-through' but frozen by a small amount of flash). I believe it
>> has been shot using the 'rear curtain synch' mode, though I may be wrong.
>>
>> My question is; can you only use rear curtain synch with on
camera flash, or
>> can you use it with studio flash, or even a combination of the two? Never
>> really done much stuff with this technique and am a little
nervous about it,
>> all help and tips gratefully received!
>>
>> Cheers,
>>
>> Jonathan.
>>
>>
>>
----------------------------------------------------------------------------
>> -------------------------------------
>> Jonathan Turner
>> Photographer
>>
>> e: home@xxxxxxxxxxxxxxxxxxx
>> t: 0113 217 1275
>> m:07796 470573
>>
>> 7 Scott Hall Walk, Leeds, LS7 3JQ
>>
>> http://www.jonathan-turner.com
>>
----------------------------------------------------------------------------
-------------------------------------
Jonathan Turner
Photographer
e: home@xxxxxxxxxxxxxxxxxxx
t: 0113 217 1275
m:07796 470573
7 Scott Hall Walk, Leeds, LS7 3JQ
http://www.jonathan-turner.com
James Schenken
