Re: Re: Lesson 3 Retry slow shutter speed

#20978
Duncan Rawlinson
Keymaster

So you’ve certainly captured some motion here in the image of the stream. Obviously in a slow shutter speed image like this camera shake is a problem.

What’s important here is to understand that shooting slower shutter speed images is possible but you have to rememember that more light comes in at these slow shutter speeds. So you have to compensate for it.

Stream photo:
Date Time Original: 2012:11:25 14:58:45
Exposure Time: 1/10
F Number: f / 5.60
Exposure Program: Manual
ISO Speed Ratings: 400
Metering Mode: Pattern
Flash: Flash did not fire, compulsory flash mode
Focal Length: 105mm
White Balance: Auto white balance <- (explains the blueishness of the image)
Make: NIKON CORPORATION
Model: NIKON D7000
LensInfo: 180/10 1050/10 35/10 56/10
LensModel: 18.0-105.0 mm f/3.5-5.6
Lens: 18.0-105.0 mm f/3.5-5.6

You’ll note that your photo of the waves is very blown out. There is just way too much light in this scene to shoot an image with that slow of a shutter speed. You’d have to use a neutral density filter and alter your camera settings accordingly. ISO 640 is way too high for this kind of image.

wave photo:
Date Time Original: 2012:11:24 11:41:04
Exposure Time: 1/100
F Number: f / 14
Exposure Program: Manual
ISO Speed Ratings: 640 <- (part of the reason it's so blown out)
Metering Mode: Pattern
Flash: Flash did not fire, compulsory flash mode
Focal Length: 62mm
White Balance: Manual white balance
Make: NIKON CORPORATION
Model: NIKON D7000
LensInfo: 180/10 1050/10 35/10 56/10
LensModel: 18.0-105.0 mm f/3.5-5.6
Lens: 18.0-105.0 mm f/3.5-5.6

Here is a histogram for this image. You’ll see how it is clipping.

[attachment=0:sbr7jtjb]overexposed histogram of beach waves.png[/attachment:sbr7jtjb]

That being said I think you understand how to capture motion you just need more practice.

If possible use a tripod, reduce camera shake, shoot in the right kind of light or use filters accordingly.

Sound good?

Thanks! 馃榾