8 Digital Foto

8/17/2019 8 Digital Foto

1/21

D I G I T A L M E D I A E - 1 0

E X P O S I N G D I G I T A L P H O T O G R

W E E K 8 : D I G I T A L C A M E R A S

D A N A R M E N D A R I Z D A N A L L A N @ C S . H A

mailto:[email protected]


2/21

A S S I G N M E N T R E M I N D E R S

Project 3: due tonight (11:59PM)

Problem Set 4: due next Thursday, October 29

Project 4: released today


3/21

D Y N A M I C R A N G ED I G I T A L C A M E R A S

Pixel (“Bucket”)

Photons (Light)

Collected Light


4/21

S I M P L I F I E D D Y N A M I C R A N G E C A L C U L A T I O N

Dynamic Range =Biggest signal (full “bucket”)

Smallest detectable signal


5/21

D Y N A M I C R A N G EI N S C E N E S

2013: 1/250s, f/5.6, ISO 200, -1/3EV, 28mm


6/21

D I G I T A L C A M E R A SS E N S O R S I Z E S

adapted from wikipedia.org by MarcusGR

http://wikipedia.org/


7/21

S E N S O R S I Z E SW H A T A R E T H E P I X E L S I Z E S ?

24mm

16mm

7mm

5mm

APS-C, 6MP1/2.5”, 6MP


8/21

33mm Crop

80mm 33mm & m

Images from http://www.dpreview.com/learn/?/Glossary/Optical/Perspective_01.htm

http://www.dpreview.com/learn/?/Glossary/Optical/Perspective_01.htm


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S E N S O R S I Z E SF O C A L L E N G T H A N D P E R S P E C T I V E

2013: 1/320s, f/5.6, ISO 200, +1EV, 35mm


10/21


2013: 1/320s, f/5.6, ISO 200, +1EV, 35mm


11/21



12/21

S E N S O R S I Z E SS A M E S I Z E P I X E L S , S T I L L D A R K ?

24mm

16mm

7mm

5mm

APS-C, 6MP1/2.5”, 0.5MP


13/21

S E N S O R S I Z ED E P T H O F F I E L D


14/21

S E N S O R S I Z E SP I X E L S I Z E


15/21

S I M P L I F I E D D Y N A M I C R A N G E C A L C U L A T I O N

Dynamic Range =Biggest signal (full “bucket”)

Smallest detectable signal


16/21

D Y N A M I C R A N G EF U L L - W E L L C A P A C I T Y O F P I X E L S A T V A R I O U S I S O V A L U E S

100 200 400


17/21

D I G I T A L C A M E R A SS E N S O R T Y P E S

A C T I V E P I X E L S E N S O R S P A S S I V E P I X E L S

C M O S C C D


18/21

S E N S O R SA C T I V E P I X E L

(Light)

wikimedia.org

http://wikimedia.org/


19/21

P I X E L L A Y E R SM I C R O L E N S

Image from Eastman Kodak, from http://www.luminous-landscape.com/essays/kodak-iss.shtml


20/21

P I X E L L A Y E R SC O L O R F I L T E R A R R A Y S

wikipedia.org

Incoming

Filter lay

Sensor a

http://wikipedia.org/


21/21

D I G I T A L M E D I A E - 1 0

E X P O S I N G D I G I T A L P H O T O G R

W E E K 8 : D I G I T A L C A M E R A S

D A N A R M E N D A R I Z D A N A L L A N @ C S . H A
mailto:[email protected]

8 Digital Foto

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