APERTURE (Week 3)

21th Febuary 2014
Chuah Tien Ling (0315670)
Introduction to Photography
Exercise 2 (Aperture)

Lecture: Aperture

So basically, during the third week of lecture, we have been re-explained again by Mr. Vinod about our eportfolio for to sort out our confusion. After that, we were taught about Aperture. I got to catch up everything easier and clear after I have done with my research that asked by Mr. Vinod during the second week. So here, I would like to share some knowledge that I understood through my research and what I have gained from today lecture. 

*Let's ignore that Shutter Speed and the ISO Speed. 

So basically,

Aperture is mean by: controls the area over which light can enter your camera's lens

                                  : controls the depth of field (FOD) in the camera

 **The light for entering the lens are controlling by the diaphragm which shape like a leave. 

(Put most simply – Aperture is ‘the size of the opening in the lens when a picture is taken.’)

First of all, we were taught of aperture size is usually calibrated in f-numbers or f-stops. for example f/2.8, f/4, f/5.6,f/8, f/16,f/22 etc. Moving from one f/stop to the next f/stop, each one f/stop consist of 3 clicks. And so, the lower the f/stops, the more exposure because they represent larger aperture, whereas the higher the f/stops, the lesser the exposure because they represent smaller aperture.

**As you can understand it by this way: 

Depth of Field and Aperture

- refers to the range of distance that appears acceptably sharp.

Instructions:
1. Use a subject that is repetitive in nature
2. If you are using a zoom lens keep it fixed at 35mm (50mm)
3. When you mount the camera on the tripod don’t move the framing till the exercise is concluded
4. The focus must be at the same point (centre of the frame) from the first image right till the last. DO NOT ADJUST IT! J Keep a record of the settings for each image shot.

**Once the exercises are concluded, download all images of this exercise into a folder and call it “Exercise 2a & 2b :Aperture”

Instructions:(Exercise 2ai)
1. Take a picture of your repetitive subject starting with the right exposure combination of shutter speed and aperture.
2. Start your aperture setting from the lowest number (f/5.6, f/8, f/11, f/16 ,f/22).
3. Do not change the shutter settings as the aperture is increased. 4. Fix the ISO at 200. 

Exercise 2ai

Aperture: f/5.6
Shutter Speed: 1/800
ISO: 200

Aperture: f/8
Shutter Speed: 1/800
ISO: 200

Aperture: f/11
Shutter Speed: 1/800
ISO: 200

Aperture: f/16
Shutter Speed: 1/800
ISO: 200

Aperture: f/22
Shutter Speed: 1/800
ISO: 200

Instructions:(Exercise 2aii)
1. Take a picture of your repetitive subject starting with the right exposure combination of shutter speed and aperture.
2. Start your aperture setting from the lowest number (f/5.6, f/8, f/11, f/16 ,f/22).
3. Compensate the increase of your aperture with your shutter settings as the aperture is increased to maintain the right exposure.
4. Fix the ISO at 200.

Exercise 2aii

Aperture: f/5.6

Shutter Speed: 1/1000

ISO: 200

Aperture: f/8
Shutter Speed: 1/500
ISO: 200

Aperture: f/11
Shutter Speed: 1/250
ISO: 200

Aperture: f/16
Shutter Speed: 1/125
ISO: 200

Aperture: f/22
Shutter Speed: 1/60
ISO: 200

General Reflection: 

Throughout this exercise I am able to control or use capture picture of nature with Aperture; although I am not like a professional yet. This is part of the challenge that being solved for me to achieve my dream. I will keep this spirit on in the next lesson of Introduction of Photography. 

Screenshots:

Feedback:

So first of all, all of us still having the mistake with our ePortfolio. By Mr. Vinod, he wish we can be much more better in every expect because this may help us in our own future. We got need to improve our skill in writing our reflection. (We should be much more in detail, just like a scientist observe every single part of our-self. )

So basically, what have I got for my personal feedback are my picture aren't go darker as my friends' as they usually do. This may due to the sunlight has changed because light may not constant. (MAYBE is the sun goes lighter).

Second, is again my reflection. (T.T) Mr. Vinod advised me to be more specif on every single pictures. He wants me to be like a scientist to observe the picture clearly and explain. (For example, my picture started to go darker at the third picture. This is not as usual as my friends')

The last, I usually use a lot of colour to explain in my ePortfolio which is a really good for Mr. Vinod but this is may look a little bit messy. 

I really thanks to Mr. Vinod. I promise and must put much more effort in this!