This presentation talks about the different features you need for capturing a picture

1. Capturing images

2. View finder
• A viewfinder is what the photographer
looks through to focus the picture.
• Viewfinders are used in many cameras for
different types of things: still, movie, film,
analogue and digital.
• A zoom camera usually zooms into the
finder and links it with the lens, a camera
that doesn’t do this is rangefinder cameras.
Examples
A twin-lens reflex camera is a type of camera that has two lenses of
the same focal length. One of the lenses takes the picture, while the
other is used for the viewfinder system, which is usually viewed from
above at waist level.
Single-lens reflex viewfinders
A single-lens reflex camera (SLR) uses the mirror and prism system it
shows the photographer the view through the lens and allows them to
see what they are taking a picture of.

3. Lens
Fisheye lenses
Fisheye lenses (8-16mm) range from lenses
that produce images with a slightly curved or
bowed appearance, and a field of view that is
up to 180 degrees.
Ultra Wide-angle lenses
Ultra wide-angle lenses fall range from 10-
24mm rand have a very wide angle of view,
which allows the camera to work very close
on the subject and still include it all in the
frame
Wide-angle lenses
A typical wide-angle lens falls size from 24-35mm . a
wide-angle kit lens range frome 18-55mm, it can be a
fixed focal length prime lens.
Short telephoto lenses
the Lenses sizes that range from 100-200mm
range are known as short telephotos. They are
used for isolating specific subjects within
landscapes, and for portraits and close-up work.
Long telephoto lenses
Long telephotos are used for to focus and bring closer images. It can focus
up to lengths up to 300-600mm and have a very narrow angle of view.
People mostly use this for wildlife and sports.
Standard lenses
A standard lens is 50mm for DSLRs with a full frame
sensor. The focal length for crop-sensor is between 28-
35mm range, but depends on the camera model.

4. Image sensor
A sensor is a device which captures the light so that the camera is able
to form a digital image.
CCD sensor
CMOS sensor
Foveon X3 sensor
LiveMOS sensor
Sensor Sizes

5. Aperture
• Aperture means how much light is
exposed for the camera
• Photographs with a subject that are
in focus and have beautiful blurred
backgrounds, means that this is the
effect of a wide aperture
• A wide aperture is the best way for
taking pictures because more light is
being used. However less of the
picture is in focus
Sizes of aperture holes

6. shutter
Shutter means how long the camera stays open this means how much light is able to reach the sensor before it closes Shutter
speeds are measured in seconds and fractions of seconds the longer the shutter remains open mean that the photographer
can set the aperture and this means more light can reach the sensor.
1/4000th sec – Freezing motion 1/250th sec – Handheld sharpness 1/30th sec – Panning

7. memory
Memory Stick Duo Memory Cards
SDXC (Secure Digital ‘Xtra Capacity’)
Memory Cards:
xD Picture Memory Cards:
Memory card reader
A memory card reader transfers
photos to computers without
having to have a USB cable for any
specific camera.

8. https://en.wikipedia.org/wiki/Viewfinder
• https://en.wikipedia.org/wiki/Camera_lens
http://electronics.howstuffworks.com/cameras-photography/digital/question362.htm
http://www.digitalcameraworld.com/2012/06/29/how-different-types-of-lenses-see-the-world/
Google images
http://www.photographymad.com/pages/view/telephoto-lenses
http://www.whatdigitalcamera.com/technical-guides/technology-guides/sensors-explained-11457
http://www.whatdigitalcamera.com/what-digital-camera/specials/shutter-speed-5565
http://www.whatdigitalcamera.com/x-archive/techniques/shutter-speeds-introduction-13286/2
http://www.whatdigitalcamera.com/buying-advice/understanding-memory-cards-9083
Bibliography