Art 160 Basic Photography-1
a chill guy
Lecture2.pdf
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 A P H Y
W E E K 9 : D I G I T A L C A M E R A S ( C O N T I N U E D )
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 R V A R D . E D U
A S S I G N M E N T R E M I N D E R S
Problem Set 4: due tonight (11:59PM) Project 4: due next Thursday, November 5
Problem Set 5: released today, due November 12
S E N S O R S I Z E S F 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
S E N S O R S I Z E S F 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
S E N S O R S I Z E D E P T H O F F I E L D
D Y N A M I C R A N G E F 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
100 200 400 800
D I G I T A L C A M E R A S S 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 E N S O R S
C M O S C C D
S E N S O R S I Z E S P I X E L S I Z E
P I X E L L A Y E R S M I C R O L E N S
Image from Eastman Kodak, from http://www.luminous-landscape.com/essays/kodak-iss.shtml
P I X E L L A Y E R S C O L O R F I L T E R A R R A Y S
wikipedia.org
Incoming light
Filter layer
Sensor array
C O L O R F I L T E R A R R A Y S B A Y E R F I L T E R
adapted from Cburnett’s image from wikipedia.org
C O L O R F I L T E R A R R A Y S D E M O S A I C I N G
cambridgeincolour.com
S E N S O R S F O V E O N X 3
Image adapted from http://www.ddisoftware.com/sd14-5d/
S E N S O R S L O W - P A S S ( A N T I - A L I A S I N G ) F I L T E R
Images adapted from http://www.ddisoftware.com/reviews/sd9-v-bayer/
D Y N A M I C R A N G E L O W C O N T R A S T A L L O W S H I G H R A N G E
2014: 1/13s, f/4, ISO 200, 76mm
D Y N A M I C R A N G E C O N T R A S T
2014: 1/13s, f/4, ISO 200, 76mm
D Y N A M I C R A N G E R I S K S O F H I G H C O N T R A S T
2014: 1/13s, f/4, ISO 200, 76mm
B I T S & B Y T E S A R E F R E S H E R
B I T 0 O R 1
B Y T E 8 B I T S
D I G I T A L C A M E R A S A N A L O G T O D I G I T A L C O N V E R T E R ( A D C )
0.00 V
1.00 V
0.55 V
Analog Sensor 8-bit Sampling
255
140
0
Digital Output
10001100
D I G I T A L C A M E R A S A N A L O G T O D I G I T A L C O N V E R T E R ( A D C )
0.00 V
1.00 V
0.55 V
Analog Sensor 12-bit Sampling
4095
2252
0
Digital Output
100011001100
D I G I T A L C A M E R A S S E N S O R L I N E A R I T Y
409520481024512... 1 stop1 stop1 stop...
D I G I T A L C A M E R A S T O N E C U R V E
Image from http://www.covingtoninnovations.com/dslr/Curves.html
D I G I T A L C A M E R A S
R A W J P E G
B I T D E P T H 1 0 - , 1 2 - , 1 4 - B I T 8 - B I T
T O N E C U R V E N O T A P P L I E D A P P L I E D
W H I T E B A L A N C E N O T S E T S E T
C O M P R E S S I O N L O S S L E S S L O S S Y
P O R T A B I L I T Y N O N S T A N D A R D S T A N D A R D
P O S T - P R O C E S S I N G R E Q U I R E D O P T I O N A L
R A W V S J P E G
D I G I T A L C A M E R A S “ E X P O S E T O T H E R I G H T ”
Image from http://www.guillermoluijk.com/tutorial/dcraw/index_en.htm
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 A P H Y
W E E K 9 : D I G I T A L C A M E R A S ( C O N T I N U E D )
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 R V A R D . E D U
