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FORUMS Photo Sharing & Discussion Urban Life & Travel 
Thread started 26 Oct 2010 (Tuesday) 20:05
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Mid Hudson Bridge at night

 
Old ­ Salty
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Oct 26, 2010 20:05 |  #1

7D
Sigma f/4 10-20 @ 10mm
ISO 100
30 seconds

IMAGE: http://i130.photobucket.com/albums/p264/kayakfishing/Blidge.jpg

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Oct 26, 2010 23:40 |  #2

Just curious? Why f/4? Could have increased your dof by bumping up the ISO or speeding up the shutter speed.


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TheBurningCrown
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Oct 27, 2010 00:03 |  #3

Aressem wrote in post #11172325 (external link)
Just curious? Why f/4? Could have increased your dof by bumping up the ISO or speeding up the shutter speed.

You mean slowing down the shutter speed.

At that focal length an increase in depth of field with a one stop change would have been nominal at best, and thirty seconds is the longest automated time Canon provides.


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Old ­ Salty
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Oct 27, 2010 13:56 |  #4

Aressem wrote in post #11172325 (external link)
Just curious? Why f/4? Could have increased your dof by bumping up the ISO or speeding up the shutter speed.

I took multiple shot with varying f stops and times, up to 2 minutes, but this was the best one detail wise. Also with this lens, I'm never happy with smaller apertures for some reason. They always look fuzzy.


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Mid Hudson Bridge at night
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