Digital Photography and Imaging - Week 5

20/5/2024 - 24/5/2024 / Week 5

Tay Yue Chern / 0373215

Digital Photography and Imaging / Bachelor of Design (Honours) in Creative Media

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Lecture: Basic Photography Shooting

Exposure Setting

Exposure: the amount of light which reached your camera sensor or film

Actual "luminous exposure" of an image is affected by two camera settings: shutter speed and aperture, while camera ISO also affects the brightness of the photo.

1. Iris / Aperture
- control the flow of light entering the lens

- measured by f-stop, indicated by sequence of f-number (e.g. f/1, f/1.4, f/2, f/2.8)

Fig 1.1 f-stop

2. Shutter

- a small plastic sheet that opens and closes to

    → allow light onto the film

    → prevent light from reaching the film

- measured in seconds (e.g. 1/1000s, 1/500s, 1/250s)

Fig 1.2 Different shutter speed

3. ISO

- originally referred to the sensitivity of film (it's "light gathering" ability)

- refers to the sensitivity - the signal gain - of the camera's sensor in digital photography

- common ISO camera settings: 100, 200, 400, 640, 800, 1600, 3200, 6400...

- the lower the number of ISO, the less sensitive your camera is to light and the finer the grain

Fig 1.3 ISO comparisons

Fig 1.4 ISO comparisons

Lens Perspective

Different leases are designed for different purposes.

Fig 1.5 camera lenses

Fig 1.6 type of camera lenses

Lens can be categorised by focal length (the measurement in mm from the optical centre of a camera lens to the camera's sensor) - the shorter the focal length, the wider the angle of view and vice-versa.

Fig 1.7 DSLR camera vs Smartphone

It's actually quality vs convenience. DSLR cameras are designed to capture images while phones are designed to carry out multiple functions.

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Tutorial & Practical: Digital Imaging Exercise

Project 1B - Part 1: Hearst Mansion

Instructions

1. Follow the step-by-step video to edit it in photoshop: https://youtu.be/b6XqlUP-MUA

2. Download the images here: https://drive.google.com/drive/folders/1d8wBC-qsBMhnzfROB4KqtXiTlvwfy-4_?usp=sharing

Part 1: Shazam

Fig 2.1 Part 1 working process

Fig 2.2 Part 1 final work

Part 2: My reflection

Instructions

Based on SHAZAM exercise, create the same steps and insert your own photo to replace the SHAZAM’s layer by following these steps:

1. Take a photo of yourself using the right lighting techniques

2. Apply the Shazam’s exercise techniques

3. Replace the Shazam’s layer with YOUR OWN PHOTO

4. Apply suitable Colour Correction to finalise your work

Fig 2.3 Part 2 working process

I tried several times using different photos to see which one appears better in the end.

Fig 2.4 Part 2 #1

Fig 2.5 Part 2 #2

Fig 2.6 Part 2 #3