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ctfchallenge | all galleries >> Challenge 159 - Creative Use of Flash >> Challenge 159 - Eligible > Cool runner
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11th May 2008 YesBut

Cool runner

London

Canon PowerShot G9
ISO 200, 1/500s at f2.8 8.0mm
Internal flash, maximum, 1st curtain hide exif
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Model
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Guest 18-May-2008 22:38
An indication of the power of the flash can be judged by the luminous Nike icon on the trainers.

While the background buildings were in bright sunshine (something we haven't seen in London for the past week!), the fountain and the boy were in deep shadow.

Next time we get sunshine (wishful thinking) I'll repeat the shot without a flash to see what speed will be required - but I guess the Challenge will be finished before we see sun again; although with the Cricket Test match between England & New Zealand due to finish on Monday, there is hope of seeing the sun again on Tuesday.
YB
Guest 16-May-2008 15:01
Thanks Dylan.
yeah, not sure how the "electronic" shutter actually operates and how it can go as high as 1/2500s.
-Cat
ctfchallenge16-May-2008 02:44
Point&shoot cams don't have mechanical shutters like DSLR's. They have electronic shutters instead, that can go above 1/250s easily. The only exception is Nikon D70 having both mechanical and electronic shutters. So my point is that the 1/500s shutter of this photo doesn't mean flash wasn't used. Although judging from the light directions, I don't think the flash was powerful enough to reach the water/subject.

-dylan
ctfchallenge13-May-2008 01:46
you caught the action really well! I can't really comment on the flash except for the glistening effect it has on the water - but this is a fun shot.
Penny Street
Guest 12-May-2008 16:34
Sorry Cat, but I didn't understand a word about x-sync and in-lens shutter.
Am I dumb or what?
:-)
YB
Guest 12-May-2008 16:01
Good capture of a freeze motion of a action shot.
Good choice of the action shot here.
Not sure if the flash really help here, although your reasoning for its use is very good. You shot this at 1/500s I have not noticed any x-sync speeds that high. Although I don't know the specs of G9 but I know you'll be pushing it on a SLR for anything beyond 1/250. Does the G9 have in-lens shutter? If so its possible.
-Cat
Guest 12-May-2008 08:23
The building in the background was in full sunshine, but the fountain was in deep shadow, so to highlight the water and runner I needed the flash.
YB
ctfchallenge12-May-2008 02:24
Nifty shot here YB. I'm curious if the flash was necessary though as there seems to be plenty of available light. -COAmature