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Old Jun 25, 2005, 7:16 PM   #1
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I would like to submit several digital photos taken with the Pentax 1stDS WITHOUT FLASH.

This sample was taken with my Pentax 1stDS using a Sigma 28-300mm lens. The ISO was 3200, the exposure was F 5.0 at 1/125th

If anyone is interested, we can walk through exactly how to do this, if we do it before 06/27 when I have to leave to do Digital Camera Workshops in Russia. I will be back around 07/20.

Sarah Joyce
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Old Jun 26, 2005, 12:32 AM   #2
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Set the ISO to 3200, the shutter to 125,f to f5. Focus. What else?
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Old Jun 26, 2005, 2:48 AM   #3
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Uh...just a newbie here but I believe that shot could've been taken at ISO 800 or 1600-WITHOUT FLASH. Here's one of my son taken handheld with the kit lens (no flash). ISO 800, shutter at 1/8, aperture at f/3.5, focal length 27mm. It was taken at around 5:45 am so it was still a bit dark inside the house.

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Old Jun 26, 2005, 2:50 AM   #4
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Both shots are quite good, im impressed I cant see any visible noise.

Perhaps the people in that show were moving quite fast and a shutter of 1/8 (which Nols used) wouldve been way too slow, and hence needing the higher ISO to use a faster shutter
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Old Jun 26, 2005, 3:01 AM   #5
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You're probably right. I did not consider that. There's no info regarding subject distance and focal length also so we really can't tell if a lower ISO speed was possible. Still, you'd expect that stage performances like those to be brightly lit. Don't know if they'd allow flash though.

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Old Jun 26, 2005, 7:30 PM   #6
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No, flash is not allowed at the Shanghai Acrobatic Show. I was about 100 feet from the stage and on the right. Yes, this was the opening number and it was all action, so the 1/125 shutter speed was a necessity.

I was using a Sigma 28-300mm lens and it was zoomed out to around 210, which when you add in the 1.5 factor equals 315mm effective. The shot was also hand held, so I was pleased with the resulting photo. I honestly don't believe that ISO 1600 would have been effective as it would have produced a lower shutter speed, and I need to stop the action on stage.

Note also that the image is relatively noiseless, as well. Here is another photo taken that same night.

Sarah Joyce
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Old Jun 27, 2005, 12:01 AM   #7
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Terrific color.
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Old Jun 27, 2005, 2:24 AM   #8
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Thanks for posting the pic and the data Sarah. I haven't had a chance to shoot at 3200 yet. I also plan on someday purchasing a zoom in the 300mm range so atleast that pic gave me some idea onthe Sigma'sperformance.
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