How does ISO affect your photography
ISO controls how sensitive your camera is to light.
TASK ISO EXERCISE
Daylight increasing from ISO 100 – ISO 6400, followed by the same at night time using AV priority
This time I used manual in the same setting day and night, keeping the aperture the same at F.5.6 and a slow shutter speed of 0.4 seconds in the night and fast shutter speed of 1/160 seconds in the daylight. Here you can really see a difference in brightness and over exposure.
1.1, 2.1 2.2 This task was to experiment with ISO settings on the camera. ISO is simply a camera setting that will brighten or darken a photo. When you double the ISO speed, you are doubling the brightness of the photo. In the first set of photos the camera was set in AV priority, I started at a the lowest ISO 100 and moved up to the highest 6400. I did both shots in daylight and night time with the same object. I repeated the experiment in manual keeping the F stop the same at F5.8 and adjusting the shutter speed so it was a good exposure to begin with on the lowest ISO setting. I had to use a tripod as used a slow shutter speed in the night time.
3.1,3.2 Using the AV priority you can see there is not a dramatic event of brightness, you can see some grain and noise in the high ISO setting. When I repeated the experiment in manual, there is notable difference in brightness with the high ISO setting almost being white. For future reference I can see that if I wanted to capture a clear night time shot the ISO setting of 1600 might be a good one to use or even 3200 if I moved my Fstop number up.
4.1 A tripod was used in the middle of the kitchen, this was taken down straight after, so children would not knock into it. The pictures were taken in the privacy of my own home.
UAL Level 1 Photography 