Derrel
Mr. Rain Cloud
- Joined
- Jul 23, 2009
- Messages
- 48,225
- Reaction score
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- Location
- USA
- Website
- www.pbase.com
- Can others edit my Photos
- Photos OK to edit
Well...you can use the speedlight's flash power setting and the LED exposure time and the f/stop used as the basis for calculating different exposures. Flash was at 1/8 power, so 1/4 power would be one stop smaller than f/2.8, so f/4 at 1/4 power. At 1/2 power, you could move to f/5.6. At full power, you could get an f/8 aperture for the flash part of the equation. Of course, on the LED lights, you'd need to slow the shutter down by three, full EV values from where you shot the original dog and sled picture. Using an aperture of f/8 will make the LED lights that are out of focus look smaller than they would at f/2.8, but you might be able to get some decent-looking background light bokeh nevertheless.
Slow shutter speeds, AKA "dragging the shutter", can often show no signs of motion blurring on people...it depends on how fast they are moving, and how close the ambient light is to the flash's output level.
Remember this: the FASTEST way to build depth of field is generally...to move the camera farther away from the subject. Depth of field increases very rapidly at indoor distances, as the camera-to-subject distance is increased. Stopping down helps too, but moving the camera father away from the subject can really, really help at portrait-type ranges.
Fir the dog shot, I see zero problem with the sled being out of focus; it is a hint, a reminder, a gentle clue to the snowy season. If the sled were in crisp,clear focus, I think it would compete with the dog for attention.
As far as shooting a group picture at f/3.2 from close range...kind of sketchy. But...from a longer distance with say, an 85mm lens, you could get away with it perhaps.
Slow shutter speeds, AKA "dragging the shutter", can often show no signs of motion blurring on people...it depends on how fast they are moving, and how close the ambient light is to the flash's output level.
Remember this: the FASTEST way to build depth of field is generally...to move the camera farther away from the subject. Depth of field increases very rapidly at indoor distances, as the camera-to-subject distance is increased. Stopping down helps too, but moving the camera father away from the subject can really, really help at portrait-type ranges.
Fir the dog shot, I see zero problem with the sled being out of focus; it is a hint, a reminder, a gentle clue to the snowy season. If the sled were in crisp,clear focus, I think it would compete with the dog for attention.
As far as shooting a group picture at f/3.2 from close range...kind of sketchy. But...from a longer distance with say, an 85mm lens, you could get away with it perhaps.