Shutter Speed & ISO ( Week 4 )

Shutter Speed & ISO ( Week 4 )

28th Febuary 2014
Hadis Parsa(0318171)
Introduction to Photography
Exercise 2 (Shutter Speed & ISO)

Lecture: Shutter Speed

In this week Mr Vinod again explained to us how we have to upload our blog,we have to mention every single details that we have gained from lecture and he said that it is important to have watch the links he sent for us  and search about the subject he wishes to teach us before class so it would be easier for us to catch it..

After that the lecture started, I would like to share the knowledge I've got by explaining and i will put some pictures for you.

shutter speed: is the duration of time the shutter remains open to allow light to reach a digital camera sensor.

we use fast shutter speed while we want to have a freeze on fast moving subject.

the fast shutter speeds are able to freeze the image

like this

 slow shutter speed have the opposite effect--slow shutter speeds allow you to get creative with blur/used to intentionally capture the movement of a subject.

  

For most, hand holding a digital camera at shutter speeds below 1/30th of a second often require use of a camera support to prevent camera shake. 

 (Exercise 2c & 2c - ISO)

1. ISO exercise 1: you will be required to shoot a subject using the lowest ISO setting to the highest. Determine the right exposure (shutter speed & aperture @ ISO 100) and then increase the ISO setting to 200, 400, and so on.
2.ISO exercise 2: Determine your exposure (shutter speed & aperture @ ISO 100) but this time adjust the Shutter & Aperture to maintain the correct exposure as you increase the speed of the ISO.
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 (center 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.

Aperture: f/8
Shutter Speed: 1/10
ISO: 100

Aperture: f/8
Shutter Speed: 1/10
ISO: 200

Aperture: f/8
Shutter Speed: 1/10
ISO: 400

Aperture: f/8
Shutter Speed: 1/10
ISO: 800

Aperture: f/8
Shutter Speed: 1/10
ISO: 1600

Aperture: f/8
Shutter Speed: 1/10
ISO: 3200

                                                                                                 

Exercise 2c.ii

Aperture: f/8
Shutter Speed: 1/10
ISO: 100

Aperture: f/8
Shutter Speed: 1/20
ISO: 200

Aperture: f/8
Shutter Speed: 1/40
ISO: 400

Aperture: f/8
Shutter Speed: 1/80
ISO: 800

Aperture: f/8
Shutter Speed: 1/125
ISO: 1600

Aperture: f/8
Shutter Speed: 1/250
ISO: 3200

Instructions: (Exercise 2b - Shutter Speed)

1. Use a fan and keep the fan speed at 1 and capture images using shutter settings from 1/4th of a second till 1/1000th of a second.
2.Repeat this exercise after changing the fan speed from 1 to 2 and the from 2 to 3 and so on.
3. If you are using a zoom lens keep it fixed at 35mm (50mm) yet it isdepends on the high of your fan.
4. If the environment is slightly darker, try to open up all the light and windows to get a better result.
5. When you mount the camera on the tripod don’t move the framing till the exercise is concluded
6. The focus must be at the same point (center 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.

 

reflection: 

In  Exercise 2c I  noticed that my light exposure keep on boosting from 100 to 200; 200 to 400 and so on. I can see much more clear different between the first photo and the last photo. At the first photo. I can still see the white glass bottle clearly.But when I increased my ISO to 3200, I can not even see there is actually a bottle .AND also  I can even notice that the second bottle (which is the dark green bottle ) the colour has totally different compare the first photo and the last. This may due to the light exposure since I just increased the ISO setting

In the  Exercise 2c.ii can I just say that I see no change in the two photo, yet it is actually a slightly different between them. At the second photo, the photo seem a little bit darker. This may due to when the ISO keep on increasing, I have actually also reduced my shutter speed. Therefore, my camera gets to balance my exposure.

feedback: Mr Vinod said that my reflection and feedback was missing in the previous posts ..actually I did not know that the reflection and instruction of exercises have to be written separately so I just wrote them beyond my lecture..so he explained for me again how it suppose to be so here is my feedback and reflection hope its right :)