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Pole cam + Magic Filters / yes or no?


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#1 MaLe

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Posted 17 October 2010 - 01:18 PM

Hello together
I am planing a two weeks trip to Madeira and hope that I can get my newly build DIY pole cam in the water (Nexus + 5D mk1 + EF 15mm Fisheye). I am hoping to catch some whales / dolphins. Now I am not sure if I should get a set of Magic Filters for the trip.

- Whats is your opinion / experience with taking Ocean images close to the surface the magic filters especially in 0,3 - 1m? Would you advise to use the Magic Filters?
- Whats would be your preferred ISO / aperture to start with for those ambient light shots ( of cause depending on the light condition / sunny / cloudy /....... )

Thanks for your feedback.

Best regards,
Matthias
Best regards,
Matthias
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#2 Viz'art

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Posted 17 October 2010 - 06:12 PM

As much as I am Magic Filter junky, I would not recommend them in such shallow condition as they will pink out everything, pole camera typically work in shallow water where there is plenty of light penetration and a managable loss of color, the filter will complicate thing uncessarely and rob you of a few precious light stops that could/should be converted in either more depth of field of faster shutter speed. these filter really work their magic when they have somewhat of a water column over them.
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#3 Drew

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Posted 17 October 2010 - 06:26 PM

I agree, CC filters aren't necessary in shallow water.

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#4 MaLe

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Posted 18 October 2010 - 08:05 AM

Hi Viz'art, hi Drew,
thanks a lot for your feedback. I was kind of expecting that due to the shallow waters the filter might turn out to cause a color cast.

Best regards,
Matthias

Edited by MaLe, 18 October 2010 - 08:06 AM.

Best regards,
Matthias
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NEXUS 5D, 15mm fisheye, 100mm macro + diopter, 2xINON z240

#5 tdpriest

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Posted 18 October 2010 - 11:50 AM

ISO/aperture needs to accommodate a shutter speed of at least 1/400sec, and 1/600sec is better for dolphins (a tip from an expert that really worked for me). That probably means a minimum of ISO400.

Tim

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#6 Drew

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Posted 18 October 2010 - 12:05 PM

The color cast can be whitebalanced out, the problem is the 2 stops of light lost. In Madeira, there's bill fish like Marlin around and you want a fast shutter speed to freeze the action. 1/800 and up if there are tuna around too. You also want want to keep noise down so I suggest you start with ISO320 and move up from there. How high depends on your personal needs and tolerance for noise.

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#7 MaLe

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Posted 19 October 2010 - 10:05 AM

Dear All,
thanks a lot for your feedback. I will begin with ISO 400 and 1/400s and see what aperture I will get out of that. I hope that the weather is on my side. After that I will see in which direction I can go with the settings ....

First I have to finalize my DIY project in the next few days.

Best regards,
Matthias
Best regards,
Matthias
_______________________________________________________________________________
my images at Flickr
NEXUS 5D, 15mm fisheye, 100mm macro + diopter, 2xINON z240