Tutorial learning: 15/10/2013

by am109145

In our group tutorial earlier today we went through via our blogs what everybody had been doing over the past week or so. It became evident that the members of the group who had decided on there subject area/ what they wanted to learn from learning as a new skill had more on there blogs in comparison to those who were undecided on last weeks tutorials. Once going through everyone’s blogs it was evident that me and Loren had a been researching and practising in the form of physically taking these photographs based around the same subject area/ focal areas within photography (although Loren’s focus is film photography the work she has carried out has been in digital form). From the tutorial we have both realised we have both touched on: Exposure compensation, ISO and shutter speed, aperture and light metering. Although we had both practiced what we have learnt we have come to a realisation that we are both still confused about certain aspects and the basics of these areas.

From here we compiled a list of questions to asked David and using his knowledge we seem to have a better understanding of these basic elements we were confused/misunderstood when carrying out research.

Here is a list of the overall general points I have taken from the group tutorial:

–  Make the references of books more obvious on your blog even if stated, maybe put then in bold.

– When shooting on a digital SLR try not to use priority modes as these are semi-automatic modes thus the camera still has control over elements which you don’t want to happen. Even when shooting light movement make sure the camera is set on Manual so you have full control of the camera.

– Keep on top of blogging as this is the only way in individual and group tutorials that progress can be tracked.

Things that I was confused about prior to the tutorial:

– How should the Exposure compensation setting be used?

– why does it have no affect when shooting on manual?

– How do you control the aperture and shutter speed on the manual setting?

– When should you use the aperture priority setting and shutter speed setting? How should I explore this?

– Does the light metre control the aperture and shutter speed or do you control the light?

All of questions which have been listed above are from the learning that I have carried out and tried to practice within the past week. They are almost problems/issues which I have encountered and tried to investigate however haven’t managed to get my head around thus being left in a state of confusion and to a certain extent frustration.

Addressing these questions within my tutorial made me realise that other students/ made us realise that as a group we were confused upon the same basic elements. After talking through each question/issue my understanding of the questions stated above are a little clearer.

Main Learnings based on questions proposed:

EXPOSURE COMPENSATION SETTING

The exposure compensation setting can only be used on the auto mode or any of the semi-auto modes. The setting itself can not be used on the Manual shooting mode. To alter the exposure compensation you have to go through the menu and into settings or another way to do is to press the +/- button on the top of the body and use the wheel to alter the compensation. This is a preset adjustment thus meaning that the compensation can only be altered before the shot is taken.

image

OVEREXPOSURE (Light image)

The idea of there being to much light in the image that has been taken, this is usually down to the aperture being bigger and the shutter speed being open for to long.

UNDEREXPOSURE (Dark image)

The idea that there is to little light or not enough light in the image that has been taken, this could be down to aperture (hole) being to small and the shutter speed being to little.

image[1]

 EXPOSURE 

When the light metre focuses on the black, white and mid tones in a image, there is no consideration of colour in this process. This is the reason that your photographs come out dark and light, tweaking the exposure by reducing or increasing the exposure determines the optimal light intake and if overexposed there may be to much light and if underexposed there maybe to little light.

LIGHT METRE 

The light metre shows how the aperture and shutter speed should be changed in order to get the correct exposure.

image[2]

SHUTTER SPEED

The amount of time that the shutter or lens is open and exposed to light.

1/125 of a second = An example of a horse gentle moving around

image[3]

APERTURE

This is the size of the hole that lets light into the camera. The simple way of understanding this would be:

Smaller hole = Large F stop number

Large hole = Smaller F stop number

image[4]

KEY CONCEPT

We as the photographer physically control the aperture and shutter speed, you can use the controlling of this to get a correct exposure this is established through it being 0 on the light metre.

HOW TO CHANGE SHUTTER SPEED AND APERTURE

1. SHUTTER: On the manual mode you can change the shutter speeds my using the wheel

2. APERTURE: To change the aperture you need to press the +/- button and use the wheel

3. LIGHT METRE: After doing the two steps above we then to take the image on 0 on the metre (then alter the compensation depending on whether the image is over or underexposed)

TIP: When calculating all of the components above it is important to consider the ISO setting to.

Advertisements