Detailed explanation on digital cameras ,its types and important specifications.

1. DIGITAL CAMERA
&
ITS SPECIFICATIONS
By Vinesh C.H

2. 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.

3. TYPES OF DIGI-CAMS
1. POINT AND SHOOT
2. MEGA ZOOM
3. DSLR (DIGITAL SINGLE LENS
REFLEX)

4. POINT AND SHOOT

5. MEGA ZOOM

6. DSLR

7. SPECIFICATIONS TO WATCH FOR
1. SENSOR TYPE AND SIZE
2. IMAGE PROCESSOR
3. RESOLUTION
4. APERTURE OF THE LENS
5. ISO SENSITIVITY
6. SHUTTER SPEED
7. VIDEO CAPABALITIES

8. SENSOR TYPES
&
SIZE

9. TYPES OF SENSORS
1. CMOS
2. CCD (Charge coupled
device)

10. SENSOR SIZE
 Sensor 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.

11. SIZE COMPARISION OF SENSORS

12. IMAGE PROCESSOR

13. IMAGE PROCESSOR
 An 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.

14. IMAGE PROCESSOR

15. PROCESSORS OF VARIOUS COMPANIES
 NIKON - EXPEED
 CANON – DIGIC
 SONY – BIONZ
 SAMSUNG – EXYNOS
 OLYMPUS – TruePic
 PENTAX - PRIME

16. RESOLUTION

17. RESOLUTION
 Resolution 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.

18. RESOLUTION COMPARISION

19. APERTURE
OF THE
LENS

20. 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

21. APERTURE
COMPARISION

22. ISO SENSITIVITY

23. 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.

24. ISO
COMPARISION

25. SHUTTER SPEED

26. 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.

27. SHUTTER SPEED COMPARISION

28. VIDEO CAPABALITIES

29. 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.

30. VIDEO QUALITY
COMPARISION

31. VIDEO WITH 30 fps

32. VIDEO WITH 12 fps

33. OTHER
SPECIFICATIONS

34. OTHER SPECIFICATIONS
 LCD SCREEN SIZE,TYPE &
RESOLUTION
 IMAGE STABILIZATION
 AUTO FOCUS
 ZOOM
 DIFFERENT FILTERS / EFFECTS
 STORAGE
 BATTERY LIFE
 WIRELESS CONNECTIVITY
 WEIGHT AND SIZE
 WEATHER SEALED

35. THANK YOU