What email address or phone number would you like to use to sign in to Docs.com?
If you already have an account that you use with Office or other Microsoft services, enter it here.
Or sign in with:
Signing in allows you to download and like content, and it provides the authors analytical data about your interactions with their content.
Embed code for: PP3 How a camera works
Select a size
How a camera works Practical Considerations Is your Battery charged Format your memory card (this will erase every on your card and will ensure the card in in sink with your camera) Check the ISO setting The ISO is vital, it effectively allows you to take pictures of moving objects, or take pictures in low light conditions, by altering the sensitivity of the camera sensor. It does have a down side however, the higher the ISO, the more noise is visible on the image. This is a grainy effect seen on the picture. Select the correct file type (quality) For the best professional practice we would suggest you shoot entirely in the RAW file format, this will afford the highest possible quality in post production. (Be aware that larger images take up more space on your card) Choose the right white balance It’s a good idea (and often reliable) to let the camera select the white balance, using the Auto white-balance setting. (The camera works out all of the other colours from the white colour) Practical Observations before you shoot What’s the weather doing today? Wind Temperature Light Levels Rain What kit will I need? Lights Different lenses Tripod Spare memory cards Spare batteries Light Meter What/Where am I shooting Permission Licenses Access Copyright protected material Restricted premises People’s privacy ISO/ASA ISO (International Standards Organisation) and ASA (American Standards Association) are the same thing, they describe the sensitivity of photographic film/digital sensor. Digital sensors are programmed to replicate a very similar response to film. How important is setting the correct ISO? Coupled with the Shutter Speed and the Aperture Value, the ISO is very important. It should be the first setting considered before a shoot commences. Together with the shutter speed and the aperture value it forms the Exposure. ISO What ISO values can be set on my camera? This varies between cameras. It relates to film. You can get a range of film sensitivities from 60 ISO to 3200 ISO. For your purposes we can reign this range in to roughly 100 ISO-800 ISO. This will allow for a broad range of exposures and give you much more creative control. A Nikon D200 for example has the following range: 100 – Not sensitive, slow to react to light (sharp images, longer exposures) 125 160 200 250 320 400 500 640 800 1000 1250 1600 – Very sensitive to light (Noise/Grain Visible) * The Camera – Technical Information S.L.R. Single Lens Reflex Analogue=waves of light Digital=computer code 1 and 0’s The more sensitive your sensor – the less light needs to be captured to record the image. ISO sensitivity also affects noise or grain. The higher the ISO, the grainier/noisier the image will be. But higher ISO also allows you to shoot with faster shutter speeds in low light, an option that is preferred by many photographers over using flash 100ISO – Studio, good lighting available, bright daylight etc 1600ISO – Low lighting or dark, night or dusk, fast moving objects * * *