Well, that was an interesting exercise… how did you get on?
Last time I briefly explained ISO (light sensitivity), aperture (opening size of shutter) & shutter speed. I then sat my toy dragon on a table inside in a well-lit area. I set my camera on “auto” – portrait (because I didn’t want background images to be focussed) and took a photo.
I then switched to manual mode , changed the ISO and took some more photos:
Personally, I prefer the 2nd photo with the ISO of 200 as the colours are brighter and there is more clarity to the dragon. So now I will set the ISO to 200 and “play” with the aperture.
So with ISO 200 and shutter speed constant on 1/160, the aperture is best on f6.3.
Now let’s play with the shutter speed leaving the ISO constant on 200 and the aperture set at f6.3.
Now, I don’t know that I have really come to any conclusions but it has been an interesting exercise anyway 🙂 I have it set in my mind once again, after many years of using auto mode, that ISO is to do with light sensitivity and basically, the brighter the light, the lower the ISO, the smaller the aperture (f-stop) and the faster the shutter speed.
So, to go to the other extreme but staying with ISO, aperture and shutter speed, my next exercise will be to take some similar photos at night with little or no light. Of course, I will need to set the camera on a tripod for this…