25.4.2014 (Week 4)
Casey Chong Jing Ping (0318756)
Introduction to Photography
Exercise 2b(Shutter Speed) and 2c(ISO)
Lecture
Today, we not only had one group discussion, but we had two group discussions. The first group discussion was about the ISO of the camera and the second group discussion was about the Shutter Speed of the camera. After each group discussion, Mr.Vinod gave us a short presentation on both the ISO and the Shutter Speed of the camera. After the group discussion and presentation of the ISO of the camera, Mr.Vinod gave us exercises regarding to the ISO of the camera. I went out of the class with a group of my friends to do the exercises. After that, we went back to class to conduct the second discussion, which is about the Shutter Speed of the camera. After the short presentation following the discussion, Mr.Vinod gave us two more exercises regarding the Shutter Speed of the camera to do at home as it involves a ceiling fan and our own individual work.
Instructions
1. Do the exercises given by Mr.Vinod during class and finish the ePortfolio.
2. Prepare 5 questions every class to ask during group discussion, and add a few more extra questions in case some questions clash with other group member's questions.
Exercise 2b:
Using a ceiling fan, keep the fan speed at 1 and capture images using shutter settings from 1/1000th of a second till 1/4th of second. Repeat this exercise after changing the fan speed from 1 to 2 and then from 2 to 3 and so on.
1. Take a picture of a repetitively moving subject starting with the shutter speed settings of 1/1000.
2. Slowly decrease the shutter speed settings at the main stops until it reaches 30''.
3. Change the aperture and ISO settings as the shutter speed settings is decreased.
4. Repeat the instructions 1 to 3 with the subject moving with 2 other different speeds.
Exercise 2c1:
From the discussion and presentation, we know that ISO effects exposure, your task is to prove this to be true.
From the discussion and presentation, we know that ISO effects exposure, your task is to prove this to be true.
1. Take a picture of a subject starting with the right exposure combination of ISO, shutter speed and aperture.
2. Start the ISO setting from the number 200 ISO of your camera.
3. Do not change the shutter settings or the aperture settings as the ISO is increased.
Exercise 2c2:
From the discussion and presentation, we know that when the ISO is increased the quality of the picture gets effected, your task is to prove this to be true.
From the discussion and presentation, we know that when the ISO is increased the quality of the picture gets effected, your task is to prove this to be true.
1. Take a picture of a subject starting with the right exposure combination of ISO, shutter speed and aperture.
2. Start the ISO setting from the number 200 ISO of your camera.
3. Change the aperture settings as the ISO setting is increased.
Exercise 2b:
Fan Speed 1:
Fan Speed 1:
Shutter speed: 1/1000
ISO: 6400
Aperture: f-9.0
Shutter speed: 1/500
ISO: 3200
Aperture: f-9.0
Shutter speed: 1/250
ISO: 1600
Aperture: f-9.0
Shutter speed: 1/125
ISO: 800
Aperture: f-9.0
Shutter speed: 1/60
ISO: 400
Aperture: f-9.0
Shutter speed: 1/30
ISO: 200
Aperture: f-9.0
Shutter speed: 1/15
ISO: 100
Aperture: f-9.0
Shutter speed: 1/8
ISO: 100
Aperture: f-13
Shutter speed: 1/4
ISO: 100
Aperture: f-16
Fan Speed 3:
Shutter speed: 1/1000
ISO: 6400
Aperture: f-9.0
Shutter speed: 1/500
ISO: 3200
Aperture: f-9.0
Shutter speed: 1/250
ISO: 1600
Aperture: f-9.0
Shutter speed: 1/125
ISO: 800
Aperture: f-9.0
Shutter speed: 1/60
ISO: 400
Aperture: f-9.0
Shutter speed: 1/30
ISO: 200
Aperture: f-9.0
Shutter speed: 1/15
ISO: 100
Aperture: f-9.0
Shutter speed: 1/8
ISO: 100
Aperture: f-13
Shutter speed: 1/4
ISO: 100
Aperture: f-18
Fan Speed 5:
Shutter speed: 1/1000
ISO: 6400
Aperture: f-9.0
Shutter speed: 1/500
ISO: 6400
Aperture: f-16
Shutter speed: 1/250
ISO: 6400
Aperture: f-16
Shutter speed: 1/125
ISO: 3200
Aperture: f-16
Shutter speed: 1/60
ISO: 1600
Aperture: f-16
Shutter speed: 1/30
ISO: 1600
Aperture: f-16
Shutter speed: 1/15
ISO: 400
Aperture: f-16
Shutter speed: 1/8
ISO: 200
Aperture: f-16
Shutter speed: 1/4
ISO: 200
Aperture: f-20
Exercise 2c1:
ISO: 200
Shutter Speed: 1/30
Aperture: f-5.0
ISO: 400
Shutter Speed: 1/30
Aperture: f-5.0
ISO: 800
Shutter Speed: 1/30
Aperture: f-5.0
ISO: 1600
Shutter Speed: 1/30
Aperture: f-5.0
ISO: 3200
Shutter Speed: 1/30
Aperture: f-5.0
ISO: 6400
Shutter Speed: 1/30
Aperture: f-5.0
Exercise 2c2:
ISO: 200
Shutter Speed: 1/30
Aperture: f-5.0
ISO: 400
Shutter Speed: 1/30
Aperture: f-7.1
ISO: 800
Shutter Speed: 1/30
Aperture: f-10
ISO: 1600
Shutter Speed: 1/30
Aperture: f-14
ISO: 3200
Shutter Speed: 1/30
Aperture: f-20
ISO: 6400
Shutter Speed: 1/30
Aperture: f-29
Extra Exercise:
Find out how a photograph looks like when it is overexposed by 1, 2, 3 stops, and underexposed by 1, 2, 3 stops, comparing it to the original photograph that has the correct amount of exposure.
1. Take a picture of a repetitively moving subject starting with the shutter speed settings of 1/1000.
1. Take a picture of a repetitively moving subject starting with the shutter speed settings of 1/1000.
2. Slowly decrease the shutter speed settings at the main stops until it reaches 30''.
3. Change the exposure settings until the photograph is underexposed and also overexposed by 1, 2, and 3 stops on the light meter.
Over/Underexposure:
Aperture: f-4.5
ISO: 200
Over/Underexposure:
Aperture: f-4.5
ISO: 200
Overexposed by 3 stops
Shutter Speed: 1/4
Overexposed by 2 stops
Shutter Speed: 1/8
Overexposed by 1 stop
Shutter Speed: 1/15
Normal Exposure
Shutter Speed: 1/30
Underexposed by 1 stop
Shutter Speed: 1/60
Underexposed by 2 stops
Shutter Speed: 1/125
Underexposed by 3 stops
Shutter Speed: 1/250
Screenshots of the hardcopies:
The marking criteria for the above exercises are as follows:
2b) Shutter Speed (5%)
Marking Criteria: The student must capture the evidence of the Shutter’s ability to freeze fast moving objects and blur moving objects.
Marking Criteria: The student must capture the evidence of degradation of image as the ISO increases in sensitivity. The student also must produce evidence that ISO can directly affect exposure.
Feedback:
Specific feedback:
The feedback that Mr.Vinod gave me was that my exercises were executed well, and that I did good work on both the exercises as they were exemplary. On the ePortfolio front, Mr.Vinod mentioned that I did not have to post all the photographs for the shutter speed exercise simply because there were too many photographs, and that all I needed to do was to post the screenshot of the hardcopy of that exercise would suffice. Mr.Vinod had already informed this in class, but I guess I was not paying attention at that time, so I poosted all the photographs individually. On the other hand, I had to post the individual shots of the photographs in the ISO exercises, and fortunately, I did that right. Moreover, Mr.Vinod said that my reflections were really good because they were very informative and illuminating.
General feedback:
The feedback Mr.Vinod gave to the entire class in general is that most importantly, all the photographs that we posted in our ePortfolios must be in black-and-white. All the hardcopies also have to be in black-and-white. He also mentioned to the class that we do not need to post all the individual photographs in the shutter speed exercise, and just to post the screenshots. He also hinted to us to download photoshop CS3, CS4, CS5 or CS6 as we will need to be using photoshop to alter our photographs in the near future. Next, Mr.Vinod wanted us to act more like scientists, not meaning that we are supposed to be scientists, just that we act a little like them, which means to scrutinize the results of our work. We have to observe the process of our work as well as the results and not just do the exercises blindly just for the sake of it. We have to explain the experiences that we had while doing the exercises and also we have to ponder what could have happened while doing the exercises. We do not always need to be right in the things we do, because being wrong helps us to learn more. What Mr.Vinod said was to ''take a stab at it'' and just take a guess. The worst that could happen is that we will be wrong.
The feedback Mr.Vinod gave to the entire class in general is that most importantly, all the photographs that we posted in our ePortfolios must be in black-and-white. All the hardcopies also have to be in black-and-white. He also mentioned to the class that we do not need to post all the individual photographs in the shutter speed exercise, and just to post the screenshots. He also hinted to us to download photoshop CS3, CS4, CS5 or CS6 as we will need to be using photoshop to alter our photographs in the near future. Next, Mr.Vinod wanted us to act more like scientists, not meaning that we are supposed to be scientists, just that we act a little like them, which means to scrutinize the results of our work. We have to observe the process of our work as well as the results and not just do the exercises blindly just for the sake of it. We have to explain the experiences that we had while doing the exercises and also we have to ponder what could have happened while doing the exercises. We do not always need to be right in the things we do, because being wrong helps us to learn more. What Mr.Vinod said was to ''take a stab at it'' and just take a guess. The worst that could happen is that we will be wrong.
Reflection:
Experience:
From today's class, I have experienced using the ISO and shutter speed in the camera. I have also gained more experience in asking questions, no matter how stupid and dumb, and I have also experienced in answering the questions given by others. Some of my answers are wrong, but through all my wrong answers, I have gained even more experience is the current topic. Apart from that, I have also experienced in doing group work, especially in the part where we went out to take photographs outside the classroom as a group. Furthermore, I gained some experience in making decisions with my group as a team. I have also experienced that higher ISO results in more grains, or noise.Therefore, the photograph taken with a higher ISO will appear grainier.
Observations:
I have observed from today's class that we all work better as a team. We also have more fun when working together as a team. Also, I have observed that we work faster as a team too. I have also observed that questions are better than facts, because when someone asks a question, everyone will start thinking and questioning it and will want to think of some answers to that particular question. Questions test your brain and sometimes, one question can also bring out more questions, as I have observed during group discussion in class. I have also observed that light is a very important aspect in taking a photograph. The best photographs are taken in natural sunlight, but not too much sunlight, as that will cause overexposure.
Findings:
I have found out in class today about the ISO and shutter speed of the camera. First of all, I have found out that ISO is originally called ASA. I found out that ISO stands for International Organization for Standardization, and a few other friends and I have questioned in class why is it ISO instead of IOS? But until now we have not found the answer yet. But hopefully we will found out sooner or later. So before the term ISO, it was originally called ASA, which stand for American Standards Association, because America was the one that originally created it. I have learned that ISO is the speed of which a film or camera responds to light. I have also found out that ISO affects exposure and the photograph will appear grainier when the ISO is cranked up high. Also, when you do not use a tripod when the shutter speed is slow, meaning adjusted below 1/30, the photograph will appear blurrier because we cannot hold the camera steady enough without the help of a tripod to steady it. There is also a feature in the camera shutter speed called BULB. I have found out from some members of the group discussion that that feature BULB allows us to control how fast we want our shutter speed manually, as in using our own hands and fingers to adjust it by pressing the button as long or as short as we want to. Lastly, I have learned that there are not only 3, but actually there are 4 things that affect exposure, which are aperture, shutter speed, ISO, and most importantly, light. Most people forget to add light into the equation because we cannot control light, but in truth, Light is the most important aspect that affects exposure. 