Day 2: October 11
Trying Out my Camera!
Before going into this, here is a recap of what I learned:
ISO controls lighting (higher the ISO, brighter the picture)
aperture controls depth of field + how much light comes in
lower f-stop means shallower depth of field
shutter speed: controls motion shots
To take some sample pictures, I used a grassy field outside my condo to play around with the three different settings.
Here are some not-so-pretty shots to start off:
This image is clearly overexposed, and there is no focus to the picture. My f-stop was pretty high, meaning that my depth of field wasn’t really shallow, so I was expecting an image where everything was in focus. This also meant that minimal light would come in, so I increased my ISO to 200, but I did not expect it to be this bright.
After about an hour of playing around and struggling a few times, I managed to get a shot I was satisfied with.
I've been trying to play around with getting a picture with ample lighting and good field of depth, since I know that I would be playing around with field of depth the most when exploring around Singapore.
Here are also some comparisons to show the effect of each setting:
ISO:
*shutter speed: 1/30 (constant for all three pics)
*aperture: 7.1 (constant for all three pics)
In my opinion, ISO is the easiest to understand, and the most straightforward. If you need more light, you just need to increase the ISO, given that the aperture and shutter speed stays the same since they all affect each other.
Aperture
As we learnt, the lower the aperture, which makes the opening wider, the shallower the depth of field is. This will be useful for any cool shots that I hope to take.
Shutter Speed:
I'm still playing around with shutter speed, because I'm also realising that while it plays around with motion, it also seems to affect the lighting. It is also called "exposure time" on the Macbook when looking at the data for the images, meaning the it controls how long the light can come in for. I'm also questioning how much I will need to shutter speed, since my pictures of architecture will most likely not require any motion, but that will need to be experimented on as I go out to officially take pictures.
Things I took away from today!
If you want to take close up pictures with shallow depth, set your ISO low and f-stop low. If your f-stop is low, it means you are allowing more light in as your diameter becomes bigger, so ISO should be low!
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