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Whisky-dave wrote:
On Wednesday, 3 July 2013 13:07:02 UTC+1, PeterN wrote: On 7/3/2013 1:55 AM, David Taylor wrote: On 03/07/2013 00:40, Dudley Hanks wrote: Tried my hand at shooting fireworks at the local Canada Day celebration. http://www.blind-apertures.ca/pics/Fireworks.jpg It was a longish exposure, about 4 secs, so the original was fairly bright. After a bit of Adobe tinkering, I'm told the result isn't all that bad. But ... What do you gurus think? Take Care, Dudley It captures the atmosphere, but less exposure would have been better. Or a smaller aperture. It's out of focus, which is the major defect I can see. I think it's overexposed. I don't see it as a focus issue. Yes the sky looks a little to blue for a night shot, well I assume the firework display was at night. The bottom image does looks a bit burnt out and lacks colour. I couldn't find the EXIF data . Was wondering whethe ryou use rteh firework mode as I think that purposely sets a longer exposure than would normally be used. I used aperture priority with no exposure compensation and the Canon f/1.4 50mm lens. Ended up shooting close to a hundred pics using everything from long manual exposures stopped down to f8 all the way to some shorter, nearly wide open pics at iso 800. Most came out like the one posted. As for timing, the event was a "family friendly" event, meaning it was a bit earlier than one might expect for fireworks (read dusk) so the kids could watch without having to lose too much sleep. That could explain the overly blue sky. Thanks, Dudley |
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Tony Cooper wrote:
[Fireworks] Bulb can be used instead of 4 seconds if you have a black card to hold over the lens and take away the card to capture the burst and then replace it. This can produce some interesting multiple exposures because several firework bursts can be recorded on one image. You can also simply merge several firework burst images. :-) -Wolfgang |
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Tony Cooper wrote:
On Thu, 4 Jul 2013 15:09:07 +0200, Wolfgang Weisselberg Tony Cooper wrote: [Fireworks] Bulb can be used instead of 4 seconds if you have a black card to hold over the lens and take away the card to capture the burst and then replace it. This can produce some interesting multiple exposures because several firework bursts can be recorded on one image. You can also simply merge several firework burst images. :-) Yes, that can be done in Photoshop (and maybe other programs) You probably mean "that can be done in other programs (and maybe in Photoshop". by bringing in additional images as new layers and changing the blend mode to Screen on all but the Background layer to drop out the sky. Or simply use additive blending, or "choose the brightest pixel". (Newer Canons can do that in camera, even!) But, not everyone has Photoshop to work with. Dudley would simply whip up a perl script: choose the brightest pixel and done. (Or add all pixel values and scale down so the maximum values don't cross 255.) Or people could use the GIMP ... .... or dozens of other programs. -Wolfgang |
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Wolfgang Weisselberg wrote:
Tony Cooper wrote: On Thu, 4 Jul 2013 15:09:07 +0200, Wolfgang Weisselberg Tony Cooper wrote: [Fireworks] Bulb can be used instead of 4 seconds if you have a black card to hold over the lens and take away the card to capture the burst and then replace it. This can produce some interesting multiple exposures because several firework bursts can be recorded on one image. You can also simply merge several firework burst images. :-) Yes, that can be done in Photoshop (and maybe other programs) You probably mean "that can be done in other programs (and maybe in Photoshop". by bringing in additional images as new layers and changing the blend mode to Screen on all but the Background layer to drop out the sky. Or simply use additive blending, or "choose the brightest pixel". (Newer Canons can do that in camera, even!) But, not everyone has Photoshop to work with. Dudley would simply whip up a perl script: choose the brightest pixel and done. (Or add all pixel values and scale down so the maximum values don't cross 255.) Or people could use the GIMP ... ... or dozens of other programs. -Wolfgang Yep, fireworks wouldn't be that tough to double expose using Perl, especially if the photog doesn't screw things up and get blue sky... One of the projects I'm working on at present is to split several images into components and compose a final image from halfs, quarters, thirds of other images. More of a montage affect than a merge. While obviously not as powerful as Adobe, there's actually quite a bit one can do using a script. Take Care, Dudley |
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