Basic photography tutorial ecca 2013-part_2

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04/13/2023 © Niyam Raj Shrestha 1

BASIC PHOTOGRAPHY

TUTORIAL CLASS FOR ECCA COUNSELLORS

Environmental Camps for conservation Awareness

Tutor- NIYAM RAJ SHRESTHA17 JUNE 2013

PART - II

Photography“What is Photography?" • Greek words photos ("light") and

graphein ("to draw") • The word was first used by the scientist

Sir John F.W. Herschel in 1839. • It is a method of recording images by the

action of light, or related radiation, on a sensitive material.

Camera“What is Camera?" • Optical instrument - records images -directly,

transmitted to another location, or both. • These images - still photographs or moving

images. • The term - came - camera obscura (Latin for

"dark chamber"), an early mechanism for projecting images.

• The modern camera evolved from the camera OBSCURA.

Camera Evolution

Pinhole Camera • Alhazen (Ibn Al-Haytham)around 1000AD,

• Invented the first pinhole camera, (also called the Camera Obscura}

• Able to explain why the images were upside down

The first casual reference to the optic laws that made pinhole cameras possible, was observed and noted by Aristotle around 330 BC, who questioned why the sun could make a circular image when it shined through a square hole

Pinhole Camera• The first casual reference to

the optic laws that made pinhole cameras possible,

• This was observed and noted by Aristotle around 330 BC, who questioned why the sun could make a circular image when it shined through a square hole

EVOLUTION

Evolution contd..

CAMERA Parts..

CAMERA PARTS Camera Function..

Shutter Speed

the amount of time that the shutter is open

CAMERA PARTS Camera Function..

Shutter Speed Effect

What are the parts and function in digital camera?

What are the parts and function in digital camera?• The lens• The CCD or CMOS sensor

The light that enters the lens and translates it into a digital signal. The size of the CCD or CMOS varies, from 25mm2 up to 1977mm2 and can contain anywhere from less than 1 million pixels (1MP) to 24 million pixels (24MP) and up. Each pixel is a 'dot' in the image, the more megapixels the more dots that comprise the image. This is not a measure of quality, it is only a measure of size.

• The PCBThere can be one or more Printed Circuit Boards inside the camera. These process the information and are the 'brains' of the camera. Think of it like the motherboard inside your computer, just much smaller.

• The memory• The LCD screen• The flash• The body

What are the parts in digital camera?

Camera Function..

Lenses Camera Function..

• Optical lens or assembly of lenses used in conjunction with a camera body and mechanism to make images of objects

• It can be either on photographic film or on other media capable of storing an image chemically or electronically.

Types of Lenses Camera Function..

• Wide Angle Lenses• Standard Lenses• Medium Telephoto /Portrait Lens• Telephoto• Compare Prices• Specialist Lenses

Types of Lenses Camera Function..

• Wide Angle Lenses-under 20mm. Wide-angle is 21-35mm. • Standard Lenses-focal length range of 35-70mm, fixed

50mm lens.• Medium Telephoto / Portrait Lens-The focal range between

80-135mm• Telephoto-focal length of between 135mm and 300mm

used for sports and wildlife photography• Specialist Lenses-

– Super Telephoto:focal length of more than 300mm– Macro: focus closer to an object than normal lenses,1:1 ratio– Fisheye: super wide-angle lenses

• ZOOM LENSES

Lenses Function Camera Function..

APERTURE

an aperture is a hole or an opening through which light travels

APERTURE

APERTURE EFFECT

End of part – 2

Basic photography tutorial ecca 2013-part_2

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