ISO comparison

Sequence 01 from abbie on Vimeo.
The ISO can help you adjust the lighting on a image. If you take a picture and the image is under-exposed you can change the ISO, the higher the Iso the more light you can get in your image. However if the ISO is too high the quality of the image gets changed and you can get grain and or noise on your image. Thats why you should try and keep your ISO as low as possible, around 100 or 200. When taking an image that is under lit, you should change the shutter speed or the aperture first, as then it allows you to keep the quality of the image.

This is a screenshot (to the left) from my video, where i used a ISO of 3200. As you can see the quality of the image is low as the grain can clearly be seen.
 The screen show bellow is when i used an ISO of 200, the quality is better as their is less grain as outside it was brighter and the ISO could be kept low.




I showed the ISO changes in two videos played one after the other, with the 200 first then the 3200. I also added text in the video so the person watching the video can easily tell which ISO was used for which video. However i could have shown the videos in a more effective way by having the two videos played side by side, in red to show a direct comparison. Also in my first clip, the 200 ISO, the quality of the video isn't very good as it is slightly out of focus and the panning is shaky. I attempted to fix the handheld shake from the camera by using a warp stabiliser, but the effects are minimal when compared to the original clip.

The technical challenges that i faced during the shoot is the steadiness of the camera, i could have used a tripod to demonstrated a steady pan. I would have also preferred to show the lowest ISO which is 100, however the lighting outside wasn't great,s o the best i could film is 200. Although i managed to change the ISO with no problem and if i came to it and i did need to change the aperture or the shutter speed, i would know how to do so.