DIGITAL CAMERA&

ITS SPECIFICATIONS

By Vinesh C.H

INTRO TO DIGITAL CAMERA

A digital camera is a camera that encodes images DIGITALLY and stores them for later reproduction of image.

Steven Sasson who worked as an engineer at Eastman Kodak invented & built the first Digi cam in 1975.

Today Nikon and Canon are the front runners in Digi Cam manufacturing.

TYPES OF DIGI-CAMS

1.POINT AND SHOOT

2.MEGA ZOOM

3.DSLR (DIGITAL

SINGLE LENS REFLEX)

POINT AND SHOOT

MEGA ZOOM

DSLR

SPECIFICATIONS TO WATCH FOR

1. SENSOR TYPE AND SIZE2. IMAGE PROCESSOR3. RESOLUTION4. APERTURE OF THE LENS5. ISO SENSITIVITY6. SHUTTER SPEED7. VIDEO CAPABALITIES

SENSOR TYPES&

SIZE

TYPES OF SENSORS

1.CMOS 

2.CCD (Charge coupled

device)

SENSOR SIZESensor size is the dimensions of

the array of photoreceptors that create the pixels that become an image.

Bigger sensors generally produce better photo quality, but the bigger the sensor the bigger the camera.

Larger sensors are also more expensive to make, so the cameras are pricier.

SIZE COMPARISION OF SENSORS

IMAGE PROCESSOR

IMAGE PROCESSORAn image processor,also called

as media processor,is a specialised digital signal processor used for image processing in digital cameras,mobile phones etc.

Noise reduction & Image sharpening are done by the processor.

IMAGE PROCESSOR

PROCESSORS OF VARIOUS COMPANIES

NIKON - EXPEED

CANON – DIGIC

SONY – BIONZ

SAMSUNG – EXYNOS

OLYMPUS – TruePic

PENTAX - PRIME

RESOLUTION

RESOLUTIONResolution is the capabality of

the sensor to observe or measure the smallest object clearly with distinct boundaries.

In genral,its the pixel count in the sensor.

If a sensor has N pixels horizontally and M pixels vertically,then the resolution of the camera is said to be MxN Pixels.

Higher the resolution,better the picture quality.

RESOLUTION COMPARISION

APERTURE OF THE LENS

APERTURE OF THE LENS

The aperture is the size of the opening that lets in light, alternatively referred to as an f-stop or f number.

The lower the number the larger the aperture.

As aperture size increases, the area of sharpess in front of and behind the subject increases

APERTURECOMPARISION

ISO SENSITIVITY

ISO SENSITIVITY

A camera's sensitivity to light is specified as ISO

sensitivity.

The higher the number, the better the camera's

ability to shoot in low light.

Higher the ISO,more grains in the image.

For instance, a camera rated up to ISO 6400 will

probably produce decent images up to ISO 800.

Normal ISO range is from 200 to 1600 in most of

DSLR’s.

ISOCOMPARISION

SHUTTER SPEED

SHUTTER SPEED

Shutter speed controls how long the

camera spends collecting light i.e how

much light is taken in at once.

It is measured in fractions of a second.

More the shutter speed,less risk of blur.

SHUTTER SPEED COMPARISION

VIDEO CAPABALITIES

VIDEO CAPABALITIES

The video capabality of a camera is

measured by the unit frames per

second(fps).

Higher the fps,smoother the video.

These days cameras come with

either 30 or 60fps.

VIDEO QUALITY COMPARISION

VIDEO WITH 30 fps

VIDEO WITH 12 fps

OTHER SPECIFICATIONS

OTHER SPECIFICATIONSLCD SCREEN SIZE,TYPE & RESOLUTIONIMAGE STABILIZATIONAUTO FOCUSZOOMDIFFERENT FILTERS / EFFECTSSTORAGEBATTERY LIFEWIRELESS CONNECTIVITYWEIGHT AND SIZEWEATHER SEALED

THANK YOU