Shutter Speed
Shutter speed is the time the shutter is open and therefore lets light in to the camera sensor, then after the shutter time is up it closes producing the image. Shutter speed is important because if you want to capture a high quality image of something moving, the faster the shutter speed the more likely you are to capture an image without motion blur. Longer shutter speeds tends to capture any movements within the image, however it also tends to be more sensitive to the light and bring out brighter images.
If we used different lenses or focal lengths while using the shutter speed as our priority, it would effect the shutter speed because, for example, if we used a long focal length then if the camera shook it would be extremely noticeable because of how magnified it is. So to combat this, when using a longer focal length it is likely that you would be using a fast shutter speed. However if you used a short focal length then you would be able to use the longer shutter speeds and not contain any shakes or blur.
Landscape photography is a specific application that would rely strongly on shutter speed, this is because shutter speeds can help create different sense of atmospheres within landscape photos. Also slow shutter speed can allow the landscape photographers to capture unique and dramatic images. These images are photos that use the shutter speed to create a sense of motion in the images, for example a waterfall in motion while the background is completely still. Another reason shutter speed can be important to landscape photographers is if they want to contain animals in their imagery, having a high shutter speed would allow them to get the image and also having the animal still without blur.
Workshop Task -
For this workshop we were using the different shutter speeds on the camera to see what they would do to the image and to try and create different movements. The camera we used was a Sony DSLR-A290, with the exposure program on shutter priority. We had the camera set up on a tripod while we took the images we needed.Freeze a moving object
This image has f/4 f-stop
The exposure/shutter time was 1/100 of a second
ISO speed is ISO-100
No flash
When taking this image my aim was to freeze a moving object, therefore to do this I had to have the shutter speed on a faster setting, i.e. 1/100 of a second, so that it wouldn't blur as my subject(Colum) moved. Where as if we had taken this image while having the shutter speed lower, for example on 3.2 seconds, the image would appear to have a blur where the movement is being captured. As I had the shutter speed on a quicker setting it means that the camera shutter wasn't open long enough for the camera to overexpose the image, therefore this image isn't too light.
Allowing a moving object to blur
This image has f/20 F-stop
The exposure/shutter time of 3.2sec
ISO speed is ISO-100
No Flash
When taking this image my aim was to allow a moving object to blur, therefore to do this I had to have the shutter speed on a slower time, i.e. 3.2 seconds, so that it would blur as my subject moved during the time. Having the shutter open for a longer amount of time meant that the cameras sensor had more light reaching it, this is why the image is brighter than the image before.
A picture with something moving and something frozen
This image has f/22
Exposure/shutter time of 3.2sec
ISO speed is ISO-100
No flash
When taking this image my aim was to have a picture with something moving and something froze, this meant I had to have the shutter speed on a slower time yet again to allow the subject moving to blur. Having the shutter open for a longer amount of time meant that the cameras sensor had more light reaching it, this is why the image is brighter than the image at the beginning.
Take a picture of something moving using a flash to freeze the subject
This image has f/4 F-stop
Exposure/shutter time of 1/100sec
ISO speed is ISO-100
Separate Flash
When taking this image my aim was to take a picture of something moving while using a flash to help freeze the subject, for this I had to have the shutter speed on a quicker time to ensure the subject didn't blur. For this we used a separate flash, this helped ensure that all of his body was still and didn't contain motion blur. As I had the shutter speed on a quicker setting it means that the camera shutter wasn't open long enough for the camera to overexpose the image, therefore this image isn't too light.
Attempted to pan a camera to keep up with the subject therefore creating an image where the subject is still and the background is blurred
This image has f/20 F-stop
The exposure/shutter time of 3.2sec
ISO speed is ISO-100
No Flash
This is one of my attempts at freezing an image while having a blurred background from panning the camera while taking the photo. However when we tried to create this image we realised how difficult it would be, there are multiple reasons why. Firstly, the subject wasn't moving completely straight across the background because as you walk people bounce up and down slightly. Therefore, as you can see in my image, my subject and background are both blurred. There is a slightly more noticeable shape of my subject, however not steady enough that my subject is still against the blurred background. Having the shutter open for a longer amount of time meant that the cameras sensor had more light reaching it, this is why the image is brighter than the image at the beginning.
We then tried the effect of using the high shutter speed so it would take a quick shot and freeze my subject while he moves; this quick shot being of my subject, Colum, while he jumped up outside.
These images have f/4.5 F-stop
The exposure/shutter time of 1/800sec
ISO speed is ISO-100
No Flash
As we were outside I didn't need to use the flash to freeze the object or to get more light into my images as it was sunny. As I had the shutter speed on a quicker setting it means that the camera shutter wasn't open long enough for the camera to overexpose the images, therefore this image isn't too light.
This experiment was fun, however we had to make sure we have the shutter speed at the correct speed to capture the image without motion blur. We also had to ensure that we took the photo at the best time, this is so that we didn't miss the subject being in mid air.
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