shutter speed for pics of fish - The Planted Tank Forum
 
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post #1 of 8 (permalink) Old 09-29-2008, 11:46 PM Thread Starter
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shutter speed for pics of fish

I'm using a canon G9 PowerShot... What's the best shutter speed to catch swimming fish in pics?

thanks for your help

PATIENCE IS KEY.... AND A GOOD ALGAE SCRAPER
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post #2 of 8 (permalink) Old 09-30-2008, 12:25 AM
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play with it take alot of shots and see which one come out better and check what settings you used I dont know about you specfic model but I have a canon powershot a590is and if you press disp while reviewing you can see your settings for that shot. try 1/60 and move up pictures might be dark also move your aperture up some to compensate for darkness i have mine maxed at 5.0 at the moment but our lighting might bee different, so you have to play with yours and see what suits you better. also try turning up the iso some. hope this helps you
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post #3 of 8 (permalink) Old 09-30-2008, 12:39 AM Thread Starter
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ya the faster i set it the darker it goes even with the iso at 800

I'll try and find the aperture and play with it...

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post #4 of 8 (permalink) Old 09-30-2008, 12:50 AM
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depends on how fast the fish is. If it's a fast fish like a danio or rasbora, you'd even have to use flash.


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post #5 of 8 (permalink) Old 09-30-2008, 04:24 PM
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I think the G9 has the flash hot shoe on top... buy an external flash, the crazy overpriced hot shoe adapter, and take pictures with the flash from above for best results.

That way you get a short "shutter speed" at 1/5000s or shorter, even if the shutter is open 1/250s or so, for sharp images of moving fish.

Or just use the build-in flash, shooting from a slight angle to reduce reflections.

Fish photos without flash are pretty rare and usually hopeless.


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post #6 of 8 (permalink) Old 09-30-2008, 04:37 PM
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With any moving subject you want to use the fastest shutter speed you can to get the proper exposure. That shutter speed is really dependant upon the maximum aperture, to give you an idea though I've got a Canon 50mm F1.8 lens, with the aperture wide open the best shutter speed I can get at ISO 800 is about 1/60 without a flash. With the aperture opened wide some times it's difficult to tell if blur is from fish movement or because the depth of focus is so shallow at that aperture, more often I'll stop down the lens to F4.0 or smaller (lenses are usually optomized for clarity at F8.0, if I can I try to use F8.0) and use a flash with a shutter speed 1/100 or faster.

I use the pop up flash on my camera with a scrap of white paper covering the flash held in place by a rubber band then set up a remote flash with an optical slave trigger at an angle to the camera and an angle to the aquarium glass, some times it takes a few shots to get the right angles but I've had pretty good results. Depending on the aquarium and the fish some times it's easier to shoot up close with a wide angle lens, other times I've had better luck standing back from the aquarium with a zoom lens.

If you try to use a remote slave with an optical trigger be aware that Canon cameras use a preflash for metering, the preflash will trigger the slave instead of the intended flash that is synced with the shutter. To get around this you'll have to use the FEL button, if your camera doesn't have a FEL function you may not be able to use an optical trigger.


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post #7 of 8 (permalink) Old 09-30-2008, 05:15 PM
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1/60 or faster usually. At times you can drop shutter speed below that and still get usable shots; it just depends on what you're shooting. Observe your fish and take note of how they move.

Eric


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post #8 of 8 (permalink) Old 10-01-2008, 07:55 AM
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Use the sports mode, it will give you better pictures if you are not good at using the manual controls.

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