11.    Research the use of the histogram as part of your exposure calculation process:  

Before Histograms photographers used to use light meters to ensure that exposure was correct. Now that our cameras have built in light meters we can use our histograms to ensure that each photo isn’t over or under exposed. A Histogram is a representation of data, it reads the highlights and the shadows. There is no set right exposure to use because every scene is different, but the histogram helps the user understand if they have over exposed or under exposed. The Histogram on your camera reads left to right, representing Dark to Light.   

2. Focal Length:

A Lens focal length is measured in mm, it is the range that the lenses covers. For example the 18-55mm lens is wide angle and a 70-300mm has a closer range for view. Different focal length are used for different things, for example a wide angle is great for real-estate photography.   

 3. Angle of View: 

The Angle Of View is the scene captured by the image sensor, so a wide angle lens would capture more compared to a zoom lens, also the angle of view is the measurement of the breath of the subject.   

Guest Speaker

Gary Ramage

Last Wednesday our guest speaker was Australian Photojournalist Gary Ramage, who is currently employed by News Ltd at the Parliament House Press Gallery. Gary’s life experiences have strongly shaped the photographer that he is today and I could see 3 categories of photography that Gary undertakes. There is firstly the work that he is currently doing with politicians and other news related events eg. “The Schapelle Corby trial”. Gary commented that he always tries to get a different photo everyday while at work which can be a challenge when they are just men in suits.  Secondly in his free time he does wildlife photography, which he finds as a kind of escape and enjoys doing, but as Gary said it doesn’t pay the bills. And lastly there is Gary’s work that he does in war zones such as Afghanistan, Before becoming a photographer Gary was in the Military for 20 years. And now that he is out of the Army he returns and travel’s along side the Australian, American and British troop’s to places “Outside of the wire” where they are under enemy attack. Being in a war zone Gary’s equipment gets damaged and this is why he takes several bodies and lenses along with him. His equipment includes several Canon lenses and The Mark 5Diii and the Mark 1D.
I really enjoyed Gary’s talk as I found his pictures moving and that they really told a story. 

Shutter Speeds

Q1.  Why is there distortion?   

Because this photo was taken using panning, this is when this camera is moving in the same direction as the object and the people in the photo are going in the opposite direction and this causes distortion.   

Q2. & Q3. What caused this effect? 

Because this was taken on a camera phone and they have an electronic rolling shutter, which is unlike a normal SLR which has a mechanical shutter. An electronic rolling shutter is like a scanner in the way that it rolls across the image exposing it gradually.   That is why that blades are distorted in both these photos.   

  

Q4. What caused the truck to be distorted?

Similar to the first photo a panning effect would have been used, where the truck was traveling in the opposite direction to the person with the camera.

Q5.  Estimate the shutter speed used

•       Hint 1: think about typical road speed limits

•       Hint 2: examine the blur created by the car

The speed limit on this road would aprox be 60mk/h & blur has been created by the car because the camera was stationary and the car was moving. To create this they would of used a slow shutter speed, of aprox 1/10th of a second.