shutter speed

Shutter speed affects an image as it controls how much light the camera takes in. A fast shutter speed will let less light in meaning the image will be sharper as it isn’t over exposed. If the shutter speed is slow it will let more light in to the camera making the image blurry and over exposed.

Video shutter speed values in reciprocal second and in ...

John Baldessari

Photo games

in lesson time we played photo games to try using different shutter speeds. we would throw 3 balls in the air and try to capture them in line, we did this by making the shutter speed faster. Here is my attempt

The last picture was my best attempt as it captures the balls nearly perfectly alligned.

We also played a game using slow shutter speed to try capture action shots. one person would pretend to box the camera while the photographer tries to capture shots.

Aperture and Still Life photoshoot

What is Aperture and what does it do?

The aperture is a hole located in the camera’s lens that decides how much light is let into the picture, thus controlling the exposure of the outcome. Photographers can manually control the aperture by switching to ‘A’ or ‘AV’ mode and then changing the f/number using the dial on their camera. The lower the f-number, the bigger the hole, meaning it lets more light into the picture and it is a larger aperture. A very large aperture (such as f/2.8) can result in an overexposed image. On the other hand, the higher the f-number, the smaller the hole, meaning less light is let into the photo and the aperture is lower. A very low aperture (for example f/22) can result in an underexposed image.

Aperture also effects the Depth of Field (DoF). A lower aperture (for example f/16) would create a deeper DoF which causes the background to not be blurry. A larger aperture (such as f/4) would cause the DoF to be shallower and result in a blurry background.

Experimenting with Aperture

A photo from my studio photoshoot.

Throughout my photoshoot, I played around with the dial, trying out different apertures. This image was the result of a f/22 aperture, causing the image to be extremely underexposed. Barely any light was let into this picture, causing it to be very dark, despite having two lamps set up.

A photo from my studio photoshoot.

Furthermore, I also tried make the aperture larger and make it f/4, which isn’t the lowest f/number I could make it but still caused the image to be much brighter than the other ones I took as the hole is much bigger. I wouldn’t call this image overexposed however the exposure of it is quite high, causing it to look very white and bright.

A photo from my studio photoshoot.

This is a picture with an aperture of f/8, resulting in neither an overexposed nor underexposed image. The lens brought enough light in to clearly show the colours and the details of still life in the middle.

I decided this was a perfect aperture to work with as it captured the still life with the colourful lighting illuminated it the best, therefore that was the aperture for most of my images.

A photo from my beach photoshoot.

As aperture also effects the DoF, I used a larger aperture to take this image, causing the background to become very blurry and therefore only the object to be in focus as the DoF was shallower.

A photo from my beach photoshoot.

For this picture, I used a smaller aperture as I wanted everything to be in focus. The object is still slightly more in focus however the DoF is still clearly quite deep. I don’t think a deeper DoF was as effective for this photoshoot, as I prefer the look of a blurry background and sharp foreground/ midground.

I used a variety of different apertures for the section of the photoshoot that I took on the beach, experimenting with shallow and deep DoFs.

My Still Life Photoshoot(s)

Beach Photoshoot:

Studio Photoshoot:

My Edits (Using Lightroom):

All of these images were edited in the ‘develop’ section in Lightroom. After I finished, I put them into the ‘before and after’ layout to clearly show the improvements I made.

Aperture

Aperture refers to the opening in a camera lens through which the light passes to reach the sensor or film inside. It’s an adjustable mechanism that controls the level of light entering the camera, which in turn affects the brightness and depth of field in an image.

How to Adjust Your F Stop / Aperature With Canon Rebel Xti - Digital  Photography Hobbyist
Av button on a Canon camera (used to adjust aperture value in manual modes)

Aperture is measured in f-stops, which are values representing the size of the lens opening relative to the lens focal length. The larger the opening, the more light reaches the sensor/film, and the smaller the f-stop value, and vice versa. This also affects the exposure of the image, which, when adjusted manually, can be a bit of a balancing act when trying to maintain the correct exposure and the desired depth of field.

Diagram showing aperture ranges and depth of field

As mentioned, aperture values on a camera can be manually adjusted, or automatically – depending on the camera and the shooting mode in use. Wider apertures are typically used in low-light environments or to create a shallower depth of field, which keeps the subject in focus and the background more blurred. A smaller aperture, however, is more often used for well-lit scenes or to achieve greater depths of field, keeping both the foreground and background in focus.

Overall, the aperture is a key setting when it comes to camera operation and can drastically affect a final image.