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08/25/2007 04:42:41 AM · #1 |
| Lots of festivals in Japan. I'm using a D80 and have a Nikon SB600. There isn't enough ambient light even with all the laterns, to get a good clear shot of what's happening. When I point the flash directly at the subject, I get the shadow which sucks. If the shot is a bit too far, then I get nothing. So would upping the ISO help? And how do I determine how much I should up it? |
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08/25/2007 04:49:37 AM · #2 |
ISO is just another setting used in determining 'proper' exposure.
Each increment in iso ( 100 to 200 to 400 to 800 etc) is 1 full stop. Increasing the iso makes the sensor more sensitive to light. The downside is that more noise is generated as the iso is turned up.
How far to turn it up? How much noise can you stand and what shutter speed/aperture do you want to shoot at? |
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08/25/2007 04:55:53 AM · #3 |
| You can use the SB600 off camera using Nikon's Creative Lighting System (CLS). You use the on camera flash the trigger the SB600. Here is a video demonstration, Strobist: Nikon CLS Tutorial Video. I would probably shoot at ISO 800 to get some light from the lanterns. |
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08/25/2007 05:00:25 AM · #4 |
Using your 18-70mm I assume?
You've kind of asked a question none of us can really answer Jason, but if it's low light, start with ISO400 and work up from there. The flash isn't going to help much with distant subjects, that is without overexposing the daylights out of the foreground. Wipe open: f/3.5 (at 18mm) or f/4.5 at (70mm) and adjust the ISO in order to get a shutter speed desirable if hand-holding. Tripod or hand-held? Tripod - keep the ISO around at 200, hand-held, start with 400 and be prepared to go as high as 800 or more, but again, without knowing the lighting conditions, we really can't tell you, "oh just use ISO400, f/8 and 1/125sec. It will be a trial and error, as we all undergo in low-light conditions. |
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08/25/2007 05:10:35 AM · #5 |
Originally posted by Brad:
Using your 18-70mm I assume?
You've kind of asked a question none of us can really answer Jason, but if it's low light, start with ISO400 and work up from there. The flash isn't going to help much with distant subjects, that is without overexposing the daylights out of the foreground. Wipe open: f/3.5 (at 18mm) or f/4.5 at (70mm) and adjust the ISO in order to get a shutter speed desirable if hand-holding. Tripod or hand-held? Tripod - keep the ISO around at 200, hand-held, start with 400 and be prepared to go as high as 800 or more, but again, without knowing the lighting conditions, we really can't tell you, "oh just use ISO400, f/8 and 1/125sec. It will be a trial and error, as we all undergo in low-light conditions. |
I would personally use the 50mm f/1.8, the 18-70mm is too slow for low light work. |
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08/25/2007 05:23:45 AM · #6 |
I was using the 50mm. I had the shutter speed at 1/80sec because I have shaky hands and at f1/8. I'm not overly concerned about noise as long as I can get rid of some of it with noiseninja.
I wasn't sure how high to set it. I put it at 200, and most of the shots I took close by were fine, but like I said, there was the shadow cast by the flash which I didn't like so much.
As far as shooting with the flash off camera, I will try that. I have to get used to using it on camera first though. |
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08/25/2007 05:46:13 AM · #7 |
I had to use ISO 3200 last week. There was a free concert last Thursday evening and when I was shooting at 400, 800, and 1600, my shutter speed wasn't fast enough to prevent blurring of the ever-moving subject. I had to zoom all the way in to 300mm (450mm equiv) and at that focal length, my aperture would only open up to f/5.6.
Even with those settings, my shutter speed was a whopping 1/90 of a second. Thank goodness for the Pentax image stabilization, since I wasn't using a tripod or monopod!
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