# µn¤J°Ï¶ô
±b¸¹:

±K½X:

¦Û°Êµn¤J (½Ð¤Å¦b¤½¥Î¹q¸£¤Wµn¤J®É¿ï¾Ü¡u¦Û°Êµn¤J¡v¿ï¶µ¡A¥H¨¾­Ó¤H¸ê®Æ¥~¬ª¡C)

¿ò¥¢±K½X¶Ü?

¦ó¤£°¨¤Wµù¥U!
# ¥D¿ï³æ°Ï¶ô
# ½Ö¦b½u¤W°Ï¶ô
 ·|­û: 0
 ³X«È: 142

# ·j´M°Ï¶ô
center   °Q½×°Ï¥D­¶ » ­ì²z²z½×³W®æ » ÃèÀY©Ê¯àªº½d³ò©Mµe¯À¼Æªº¤W­­µLµoªíÅv

¾ðª¬Åã¥Ü | ·sªº¦b«e «e¤@­Ó¥DÃD | ¤U¤@­Ó¥DÃD | ­¶§À
µoªíªÌ °Q½×¤º®e
ITO
µoªí®É¶¡: 2006-12-22 11:30
ºô¯¸ºÞ²z­û
µù¥U¤é: 2004-09-15
¨Ó¦Û: ¤é¥»
µoªí¼Æ: 30762
[20926] ÃèÀY©Ê¯àªº½d³ò©Mµe¯À¼Æªº¤W­­
ÃèÀY©Ê¯àªº½d³ò©Mµe¯À¼Æªº¤W­­
http://www.acapixus.dk/photography/dSLRresolution.htm

­n§¹¥þµo´§EF50mm F1.4 ÃèÀYªº³Ì¤j­È180 lines/mm©Ê¯àªºµe¯À¼Æ¡A
APS-C¬°1800¸Uµe¯À¡A135 ¬°4700¸Uµe¯À¡C


(¤£¹L¤p§Ì¹ï¦¹¼Æ¾Ú¦³ÂIÃhºÃ¡AÀ³¸ÓÁÙ¦³«Ü¦h¨ä¥L¼vÅT¦]¯À )
ducknest
µoªí®É¶¡: 2006-12-23 01:34
Home away from home
µù¥U¤é: 2005-07-12
¨Ó¦Û:
µoªí¼Æ: 1238
[20935] Re: ÃèÀY©Ê¯àªº½d³ò©Mµe¯À¼Æªº¤W­­
¤Þ¤å:

ITO ¼g¹D:
ÃèÀY©Ê¯àªº½d³ò©Mµe¯À¼Æªº¤W­­
http://www.acapixus.dk/photography/dSLRresolution.htm

­n§¹¥þµo´§EF50mm F1.4 ÃèÀYªº³Ì¤j­È180 lines/mm©Ê¯àªºµe¯À¼Æ¡A
APS-C¬°1800¸Uµe¯À¡A135 ¬°4700¸Uµe¯À¡C


(¤£¹L¤p§Ì¹ï¦¹¼Æ¾Ú¦³ÂIÃhºÃ¡AÀ³¸ÓÁÙ¦³«Ü¦h¨ä¥L¼vÅT¦]¯À )


³o¼Ëºâ°_¨Ó....4/3¨t²Î¦h¤Ö´N·|¸I¨ìµe¯À¤W­­ªü
Searchman
µoªí®É¶¡: 2008-02-22 10:33
Quite a regular
µù¥U¤é: 2008-02-19
¨Ó¦Û:
µoªí¼Æ: 71
[40069] Re: ÃèÀY©Ê¯àªº½d³ò©Mµe¯À¼Æªº¤W­­
¤£¦n·N«ä¡A§Ú¨Ó±ß¤F...

³oÃ䦳 Kodak ´£¥Xªº¨t²Î¸ÑªR¤O¤½¦¡¡G
http://www.diax.nl/pages/Lens_res_uk.html

¡@¡@¡@1/Rt^2 = 1/Rs^2 + 1/RL^2 (Higgins, G.C.Appl. Opt. 3, v.1, 9, Jan 1964)
¡@¡@¡@Rt = Resolution of the system (lens + sensor)
¡@¡@¡@Rs = Resolution of the sensor
¡@¡@¡@RL = Resolution of the lens

¥Ñ¦¹¤½¦¡­pºâ±oª¾¡AÃèÀY¸Ñ¹³¤O¥²¶·¬O·P¥ú¤¸¥óªº 2 ­¿¡A
¤~·|µo´§·P¥ú¤¸¥ó¸Ñ¹³¤Oªº¤E¦¨(89.4%)¡Aµ¥¦P·P¥ú¤¸¥ó 80%µe¯À(89.4%¤§¥­¤è) ªºµ¥®Äªí²{¡C
­Y¨âªÌ¸Ñ¹³¤O¬Ûµ¥¡A«h¸Ñ¹³¤O¥u³Ñ¤C¦¨(70.7%)¡Aµ¥¦P50%µe¯À(70.7%¤§¥­¤è) ªºµ¥®Äªí²{¡C

¨Ì Canon EF 50mm/F1.4 ªº 180 l/mm (90 lp/mm)¨Ó¬Ý
1. ­Y CCD/CMOS ±K«×¬° 90 l/mm¡A«h 90 x 89.4% = 80 l/mm
¡@¡@·P¥ú¤¸¥óªº¸Ñ¹³¤Oµo´§®ÄªG¬° 80/90 = 89%
2. ­Y CCD/CMOS ±K«×¬° 180 l/mm¡A«h 180 x 70.7% = 127 l/mm
¡@¡@·P¥ú¤¸¥óªº¸Ñ¹³¤Oµo´§®ÄªG¬° 127/180 = 71%
3. ­Y CCD/CMOS ±K«×¬° 360 l/mm¡A«h 180 x 89.4% = 161 l/mm
¡@¡@·P¥ú¤¸¥óªº¸Ñ¹³¤Oµo´§®ÄªG¬° 80/90 = 45%

Á`¤§¡AÃèÀY©M·P¥ú¤¸¥ó¨â­Ó¸Ñ¹³¤O¡A
¨ä¤¤¤@­Ó¤ñ¥t¤@­Ó¤j«Ü¦hªº¸Ü¡A¹ï¨t²Î¸Ñ¹³¤Oªº´£ª@´N·|¹y¤Æ¡A
¦Ó¥B¨t²Î¸Ñ¹³¤O³Ì°ª¤]¤£·|°ª¹L¤pªº¨º¤@­Ó¡C

¤£¹L·Ó³o­Óµ²ªG¨Ó¬Ý¡AÀ³¸Ó¬OÃèÀY­n¤ñ·P¥ú¤¸¥ó°ª·|¤ñ¸û¦n¡A
¤£µM©ç¥X¨Óªº 1:1 ¹Ï¤ù´N·|½k½kªº¤F¡A®{¼W¹ÏÀɪºsize¦Ó¤w¡C
Searchman
µoªí®É¶¡: 2008-02-22 10:51
Quite a regular
µù¥U¤é: 2008-02-19
¨Ó¦Û:
µoªí¼Æ: 71
[40071] Re: ÃèÀY©Ê¯àªº½d³ò©Mµe¯À¼Æªº¤W­­
©Ó¤W

ÃèÀY Canon EF 50mm/F1.4 ªº 180 l/mm
°²³] CCD/CMOS ¤]¬O 180 l/mm ªº¸Ü¡C¡£¦¹®É¨t²Î¸Ñ¹³¤O¬ù¤C¦¨127 l/mm¡¤
135FF¡G( 36mm x 180 ) x ( 24mm x 180 ) = 2800 ¸Uµe¯ÀCCD/CMOS¡A¨t²Î¸Ñ¹³¤O 36x127x24x127 = 1400¸U
APS¡G( 22.5mm x 180 ) x ( 15mm x 180 ) = 1094 ¸Uµe¯ÀCCD/CMOS¡A¨t²Î¸Ñ¹³¤O 22.5x127x15x127 = 544¸U

¦P¼ËÃèÀY Canon EF 50mm/F1.4 ªº 180 l/mm
¦ý­Y°²³] CCD/CMOS ¬O 90 l/mm ªº¸Ü¡C¡£¦¹®É¨t²Î¸Ñ¹³¤O¬ù¤E¦¨80 l/mm¡¤
135FF¡G( 36mm x 90 ) x ( 24mm x 90 ) = 700 ¸Uµe¯ÀCCD/CMOS¡A¨t²Î¸Ñ¹³¤O 36x80x24x80 = 553¸U
APS¡G( 22.5mm x 90 ) x ( 15mm x 90 ) = 273 ¸Uµe¯ÀCCD/CMOS¡A¨t²Î¸Ñ¹³¤O 22.5x80x15x80 = 216¸U
shamicaho
µoªí®É¶¡: 2008-02-22 15:10
Home away from home
µù¥U¤é: 2007-11-20
¨Ó¦Û: shami©Ò¦b
µoªí¼Æ: 324
[40076] Re: ÃèÀY©Ê¯àªº½d³ò©Mµe¯À¼Æªº¤W­­
¤Þ¤å:



¡@¡@¡@1/Rt^2 = 1/Rs^2 + 1/RL^2

¥E¬Ý¤§¤U¥H¬°¬O³o¼Ë
1/(Rt^2) = 1/(Rs^2) + 1/(RL^2)

¬Ý¤F§Aªº¸Ñ»¡¡A­ì¨Ó¬O³o¼Ë
(1/Rt)^2 = (1/Rs)^2 + (1/RL)^2

·PÁ»¡©ú
Searchman
µoªí®É¶¡: 2008-02-22 17:55
Quite a regular
µù¥U¤é: 2008-02-19
¨Ó¦Û:
µoªí¼Æ: 71
[40086] Re: ÃèÀY©Ê¯àªº½d³ò©Mµe¯À¼Æªº¤W­­
¦A½Í¨ì 4/3 ªº¼v¹³µe¯À¤W­­¡A
§ó©ú½Tªº»¡¡AÀ³¸Ó¬O²{¹ê¦Ò¶q¤Uªº¤W­­¡A
¦]¬°­Y¤£¦Ò¼{¦¨¥»¦Ó¥h¹Gªñª«²z·¥­­¡AÀ³¸Ó¥i¥H½Ä§ó°ª¡A¥u¬O¤£·|¶q²£¡C

­è­è§Ú­Ì¦³´£¨ì¡A
ÃèÀY Canon EF 50mm/F1.4 ªº 180 l/mm¡A
­Y·P¥ú¤¸¥ó¤]¬O 180 l/mm¡A
«h FF ¬ù 2800 ¸Uµe¯À¡£¨t²Îµ¥®Ä¸ÑªR¬ù 1400¸U¤§§¹¬üªí²{¡¤
APS «h¬ù 1100 ¸Uµe¯À¡£¨t²Îµ¥®Ä¸ÑªR¬ù 550¸U¤§§¹¬üªí²{¡¤

¤@¯ë 135 ÃèÀYªº MTF ¤j¦h±Ä 10 lp/mm + 30 lp/mm¡C
¦Ó 4/3 ¹ï©óÃèÀY MTF §ó­n¨D 20 lp/mm + 60 lp/mm¡C
¦]¦¹²Ê¦ô 4/3 ÃèÀY¨â­¿©ó 135 ÃèÀYªº¸Ñ¹³¤O¡A
¡£Áo©ú¤H¨ì³oÃä´N¤w¸g¯à²q¥X©MFF®t¤£¦hÅo¡¤
´N¥H 360 l/mm(180 lp/mm) ¨Ó¦ô­p¦n¤F¡A
°²³]·P¥ú¤¸¥ó¤]¬O 360 l/mm¡G
17.3 x 360 x 13 x 360 = 2914¸U ¡£¨t²Îµ¥®Ä¸ÑªR¬ù 1450¸U¤§§¹¬üªí²{¡¤

¤j­P¤W¬O³o¼Ë¡A­Y¦³¤£¶g¥þ¤§³B¡A
ÁٽЦU¦ì«e½ú¦h«ü¾É¡AÁÂÁ¡I
ITO
µoªí®É¶¡: 2008-02-22 18:36
ºô¯¸ºÞ²z­û
µù¥U¤é: 2004-09-15
¨Ó¦Û: ¤é¥»
µoªí¼Æ: 30762
[40089] Re: ÃèÀY©Ê¯àªº½d³ò©Mµe¯À¼Æªº¤W­­
µo°Ý¡@(°²¦p°Ýªº°ÝÃD¤Ó²Â½Ð¤Å¯º )

½Ð°Ý¥Ø«eªº°¨ÁɧJ·P¥ú¤¸¥ó¡B¨C­Óµe¯À¥u­t³dRGB¤¤¤@¦â¡A
¤ÎLPFªº¥­·Æµ¥¡A
³o¨Ç±ø¥ó¹ï¤W­z¤½¦¡¬O§_¦³¼vÅT
ADI
µoªí®É¶¡: 2008-02-22 18:59
Äá¬F¤ý(¯SÅv¥÷¤l)
µù¥U¤é: 2004-11-20
¨Ó¦Û: ½Þ¼d
µoªí¼Æ: 6941
[40090] Re: ÃèÀY©Ê¯àªº½d³ò©Mµe¯À¼Æªº¤W­­
§Úı±oÀ³¸Ó¥ý°Ý¦Û¤v ---- §Ú¨ì©³»Ý­n¦h¤Öªº¸Ñ¹³¤O??
³X«È
µoªí®É¶¡: 2008-02-22 22:25
[40104] Re: ÃèÀY©Ê¯àªº½d³ò©Mµe¯À¼Æªº¤W­­
¤Þ¤å:

ADI ¼g¹D:
§Úı±oÀ³¸Ó¥ý°Ý¦Û¤v ---- §Ú¨ì©³»Ý­n¦h¤Öªº¸Ñ¹³¤O??


±o°Ý°Ý¨ä¥L®ø¶OªÌ
¥u¬Ý¤°»ò®É­Ô¤~·|°Ñ¦Ò¡A±b­±¼Æ¦r¥H¥~ªºªF¦è¡H

28MP¤§«á
§O®a¤S¥X¤F30MP
´X©u«á¤Sµoªí32MP

¥ÃµL¤î¹Ò

--
¡@Let's PARTY¡¸NIGHT! ^^
¡@http://blog.pixnet.net/volgarv
ducknest
µoªí®É¶¡: 2008-02-22 22:38
Home away from home
µù¥U¤é: 2005-07-12
¨Ó¦Û:
µoªí¼Æ: 1238
[40105] Re: ÃèÀY©Ê¯àªº½d³ò©Mµe¯À¼Æªº¤W­­
¤Þ¤å:

ADI ¼g¹D:
§Úı±oÀ³¸Ó¥ý°Ý¦Û¤v ---- §Ú¨ì©³»Ý­n¦h¤Öªº¸Ñ¹³¤O??


6~10mp

­nªº¤£¦h
Searchman
µoªí®É¶¡: 2008-02-22 22:48
Quite a regular
µù¥U¤é: 2008-02-19
¨Ó¦Û:
µoªí¼Æ: 71
[40106] Re: ÃèÀY©Ê¯àªº½d³ò©Mµe¯À¼Æªº¤W­­
¤Þ¤å:

ADI ¼g¹D:
§Úı±oÀ³¸Ó¥ý°Ý¦Û¤v ---- §Ú¨ì©³»Ý­n¦h¤Öªº¸Ñ¹³¤O??

±z¦n¡A§Ú«D±`»{¦P±z©Ò»¡ªº¡C

¦Ñ¹ê»¡¡A§Ú³Ì·Q­nªº¬O...
135¤ù´T Foveon X3 ªº·P¥ú¤¸¥ó¡A¦Ó¥B¥u»Ý­n300¸Uµe¯À´N¦n¡C

300¸Uµe¯À¡A¬ù 2130 x 1420
2130 / 36mm = 59 l/mm¡A¬ù 30 lp/mm
¨Ï¥Î EF 50mm/f1.4 ªº 90 lp/mm ÃèÀY«h¯àµo´§ 95% ªº·P¥ú¤¸¥ó¸ÑªR¤O¡A
¯uªº¤Ó°÷¥Î°Õ¡I

§Ú¯uªº¤£»Ý­n°ªµe¯À¡A¡£µM¦Ó¦³¤j¹Ï»Ý¨DªÌÀ³¸Ó·|»Ý­n¡¤
§Ú¦b³oÃä¥u¬O´N¨Æ½×¨Æ°Q½×½}¤F¡C
Searchman
µoªí®É¶¡: 2008-02-23 00:16
Quite a regular
µù¥U¤é: 2008-02-19
¨Ó¦Û:
µoªí¼Æ: 71
[40110] Re: ÃèÀY©Ê¯àªº½d³ò©Mµe¯À¼Æªº¤W­­
¤Þ¤å:

ITO ¼g¹D:
µo°Ý¡@(°²¦p°Ýªº°ÝÃD¤Ó²Â½Ð¤Å¯º )
½Ð°Ý¥Ø«eªº°¨ÁɧJ·P¥ú¤¸¥ó¡B¨C­Óµe¯À¥u­t³dRGB¤¤¤@¦â¡A
¤ÎLPFªº¥­·Æµ¥¡A
³o¨Ç±ø¥ó¹ï¤W­z¤½¦¡¬O§_¦³¼vÅT


±z¦n¡A
Ãö©ó±z´£¨ìªº¡A¬O¤@©w·|¦³¼vÅT¡A
°ê¥~ºô¯¸´ú¸Õ SD14 vs 5D ¡G http://www.ddisoftware.com/sd14-5d/
´ú±o¥­§¡¸Ñ¹³¤O¬° 5D(12.6M)1890 > SD14(4.6M)1700 > 20D(8M)1580
¦]¦¹­Ó¤H²Ê¦ô Mosaic ¸Ñ¹³¤O¬ù¬°µwÅé³W®æªº0.7­¿(0.7¥­¤è¬°¤@¥bµe¯À)

¥t¥~¦b¤Í¯¸°Q½×¡G http://www.mobile01.com/topicdetail.php?f=164&t=491869
·í¤¤ªº AlexHsu¥S ¥ÎISO12233´ú¸Õ¹ÏªíÀ°§Ú­Ì´ú±o¤@­Óµ²ªG¡A
´N¬O Mosaic µwÅé¥þµe¯À²£¥X¤§¹ÏÀÉ¡A¬°¤@¥bµe¯À¹ÏÀɸѹ³¤Oªº 1.076­¿¡A
¶È¼W¥[ 7.6% ªº¸Ñ¹³¤O¡A¤£¨ì¤@¦¨¡C

·íµM¡A¤]¦³¤H»¡ Mosaic ¥u¬O¯Ê¤ÖÃC¦â¡A¹ï¸Ñ¹³¤O¨ÃµL·l¥¢¡C
§Ú¨Ã¤£»{¦P³oºØ»¡ªk¡C

§Ú¦b°ê¥~¤Í¯¸ Steve's DigiCams ªº´ú¸Õ·Ó¤¤µo²{¤@­Ó²{¹³¡A
¨º´N¬O¤j¦h¼ÆªºDSLR§â¨ä¤¤¤@­Ó´ºªº«Î³»µ¹ÁU½k±¼¤F¡G(­ì¹Ïµô¤ÁµLÁY©ñ)
http://www.cis.nctu.edu.tw/~is84012/FoveonX3/s99.jpg

¨ä¤¤«Î³»¤ñ¸û²M·¡ªº¥u¦³ Sigma SD10 ©M Kodak Pro back 645 ¨â³¡¡A
¦Ó¥B°£¤F Sigma SD10 ¬O¥Î Foveon CMOS ¥~¡A¨ä¥¦³£¬O¥Î Mosaic CCD/CMOS¡C

¤£¹L§Ú­Ìµo²{10D¡B20D¡B5D¡B1DsII¡BSD10«Î¤lªº¹Ï¹³¤j¤p®t¤£¦h¡A¥u¦³Kodak 645¾÷­Iªº©ç±o¤ñ¸û¤j¡A
¦Ü©ó¬°¬Æ»ò§Ú¨Ã¤£²M·¡¡A¦U¦ì¥i¥H°Ñ¦Ò¹ÏÀɨӷ½¡G
¡´Canon 10D¡G http://www.steves-digicams.com/2003_reviews/10d/samples/IMG_0082.JPG
¡´Canon 20D¡G http://www.steves-digicams.com/2004_reviews/20d/samples3/IMG_1230.JPG
¡´Canon 5D¡G http://www.steves-digicams.com/2005_reviews/eos5d/samples/IMG_0890.JPG
¡´Canon 1DsII¡G http://www.steves-digicams.com/2005_reviews/1dsm2/samples/tn_VJ9J8132_CR2_s0_JPG.jpg
¡´Sigma SD10¡G http://www.steves-digicams.com/2003_reviews/sigma_sd10/samples/IMG09768.jpg
¡´Kodak DCS Pro Back 645¡G http://www.steves-digicams.com/2002_reviews/proback645/samples/44FP1826ps.jpg

©ó¬O§Ú¦³¤@­Óºc·Q¡G§â Sigma SD10 ªºµô¤Á³¡¤À·í¦¨­ì©l¹Ï¹³¡A§â³o¤@­Ó°Ï¶ô Mosaic ¤Æ·|«ç¼Ë©O¡H
§Ú­Ì¥i¥H¥ý¬Ý¬Ý Foveon X3 CMOS ©M Mosaic CCD/CMOS ªº¦¨¹³­ì²z¡G
http://www.cis.nctu.edu.tw/~is84012/FoveonX3/s00.gif


§Ú¼g¤@¤äµ{¦¡±N³o­Ó°Ï¶ôªº¹ÏÀÉ°µ¦¨¨âªÌªº¦¨¹³¬yµ{¡A(Mosaic ¬yµ{³¡¤À©ñ¤j¥i¥H¬Ý²M·¡RGB¦U§O±Æ¦C)
http://www.cis.nctu.edu.tw/~is84012/FoveonX3/s01.gif


±N Foveon X3 ¹Ï¹³ Mosaic ¤Æªºµ²ªG¡A¸ò¨Ó·½ºô¯¸10D¡B20D¡B5D¡B1DsII´ú¸Õ¹ÏÀɦ³¦P¼Ëªº¼Ò½k±¡§Î¡C
¤£¹L Kodak 645 ©ç¥X¨Ó¸û¤j¹Ï¹³¤]¥i¥H«Ü²M·¡¡A
¥Nªí Mosaic CCD/CMOS ¨ä¹ê¤]¬O¥i¥H©ç±o²M·¡¡A¥u¬O»Ý­n§ó¤jªºµe¯À¡A
¶ÈºÞ Sigma SD10 ¸¹ºÙ 10MP¡A§Ú¤´»{©w¥L¬O 3.4MP¡AµM¦Ó¥L¬O«Ü¤ã¹êªº¡C

¥t¥~¡A§Ú­Ì¥i¥H¦A¬Ý¤@¤U´XºØ¤£¦P³W®æ CCD/CMOS ªº¯u¹ê¤j¤p¦p¹Ï¡G
http://www.cis.nctu.edu.tw/~is84012/FoveonX3/s03.gif

­Y±zªº¿Ã¹õ¬O¥Îªº³Ì°ª¸ÑªR«×ªº¸Ü¡A§O«È®ð®³¤Ø¨Ó¶q¡A135¤ù´Tªº¹ï¨¤½u¬O¤£¬O¤j¬ù43mm©O¡H

§Ú­ÌÁÙ¯àµo²{CCD/CMOS¤W­±¨C­Ócellªº¤j¤p¦U¦³®t§O¡A
¬Æ»ò¡H¹Ï¤Ó¤p¬Ý¤£²M·¡¡H
¦n§a¡A§Ú­Ì´Nµ¹¥¦©ñ¤j¡G¡£¨C¤@¤p®æ¤l¤j¬ù10000µe¯Àµ¥¤ñ¨Ò¥hªí¥Ü¡¤
http://www.cis.nctu.edu.tw/~is84012/FoveonX3/s04.gif


§Úµe®æ¤lªº³o´X¥x¬Û¾÷³£¬O¹ê»Ú¤W¦s¦b¡A¦Ó¥B©x¤è¸¹ºÙªºµe¯À¬Ûªñªº¡F
¤£ÃøÅé·|®æ¤l¶V¤jªº¹ï©óÃèÀY¸ÑªR¤Oªº­n¨D´N·|¤ñ¸û§C¡C
³o¤]Åã¥Ü¥X Mosaic ­ì¥»¤£°÷¤ã¹êªº¼v¹³¤@ª½½Ä°ªµe¯À³y¦¨ÂI¶ZÁY¤p¡A
§ó®e©ö­±Á{¦]ÃèÀY¸ÑªR¤Oªº­­¨î¡A©Ò³y¦¨µe½èªºÂù­«¥´À»¡C

¥u¬O§Ú·Q Mosaic ªº´î·lºâªk¦³¨âºØ¡A
·P¥ú¤¸¥ó¡G Canon 5D¡A4368 / 35.8 = 122 l/mm
ÃèÀY¡G Canon EF 50mm/f1.4 = 180 l/mm
¡@¡@1.¨D±o¨t²Î¸Ñ¹³¤O¦A¦]°¨ÁɧJ´î·l°£¥b 101 / 2 = 50 l/mm = 25 lp/mm
¡@¡@2.¥ý±N·P¥ú¤¸¥ó°¨ÁɧJ´î¥b(122/2=61)¦A¨D¨t²Î¸Ñ¹³¤O = 58 l/mm = 29 lp/mm
­Ó¤H»{¬° 1 ¦ü¥G¬O¤ñ¸û«ê·í¡C
¥Ø«eªº SD14 2652/20.7 = 128 l/mm¡A
­YÂà±µ Canon EF 50/1.4 ªº 180 l/mm¡A¨t²Î¸ÑªR¤O = 104 l/mm = 52 lp/mm

¥H¤W¤ÀªR¬°©ß¿j¤Þ¥É¡AÁٽЦU¦ì¥ý¶i¤£§[«üÂI¡C
ÁÂÁ¡I
³X«È
µoªí®É¶¡: 2008-02-23 00:26
[40112] Re: ÃèÀY©Ê¯àªº½d³ò©Mµe¯À¼Æªº¤W­­

³o¨Ç·Ó¤ùªí²{¦nÃa
«ç»ò¬Ý³£¬O¤H¬°¦]¯À


¥t¥~
645ªºµø¨¤¥»¨Ó´N©M135¤£¤@¼Ë

--
¡@Let's PARTY¡¸NIGHT! ^^
¡@http://blog.pixnet.net/volgarv
Searchman
µoªí®É¶¡: 2008-02-23 08:33
Quite a regular
µù¥U¤é: 2008-02-19
¨Ó¦Û:
µoªí¼Æ: 71
[40122] Re: ÃèÀY©Ê¯àªº½d³ò©Mµe¯À¼Æªº¤W­­
¤Þ¤å:

volgarv ¼g¹D:

³o¨Ç·Ó¤ùªí²{¦nÃa
«ç»ò¬Ý³£¬O¤H¬°¦]¯À

¥H¤U¬O¨ä¥L DSLR ¦P¤@­Ó³õ´ºªº¹ê©ç¹Ï¡A
SD9 ªºªí²{©M SD10 ¤@¼Ë²M´·¡A
¨ä¥L¦U¼tµPªº Mosaic DSLR «o³£¦³¼Ò½kªº²{¶H¡C

±z©Ò»¡ªº¡©¤H¬°¦]¯À¡ª¡A
¬O¦bÃhºÃ Steve's DigiCam ¹ê©ç¹Ï¦³¤°»ò°ÝÃD¶Ü¡H

Sigma SD9¡G http://www.steves-digicams.com/2002_reviews/sd9/samples/IMG00128n.jpg
Nikon D80¡G http://www.steves-digicams.com/2006_reviews/d80/samples/dsc_0937.jpg
Fujifilm S5 Pro¡G http://www.steves-digicams.com/2007_reviews/fuji_s5pro/samples/dscf2249.jpg
Olympus E3¡G http://www.steves-digicams.com/2007_reviews/olympus_e3/samples/P1010002.JPG
Pentax K10D¡G http://www.steves-digicams.com/2007_reviews/k10d/samples/IMGP1152.JPG
Sony a100¡G http://www.steves-digicams.com/2006_reviews/sony_a100/samples/DSC09270.JPG
Ric
µoªí®É¶¡: 2008-02-23 08:54
Home away from home
µù¥U¤é: 2006-01-30
¨Ó¦Û:
µoªí¼Æ: 632
[40123] Re: ÃèÀY©Ê¯àªº½d³ò©Mµe¯À¼Æªº¤W­­
¦AÀ° ITO ¤j°Ý¤@¦¸
¦pªG¤£ºÞÃC¦â¡AMosaic ©î±¼ LPF
ÁÙ¬O±o¨ì¬Û¦Pªºµ²ªG¶Ü¡H

¬O¤£¬O³o¼Ë¨Ó¤ñ¸û¸ÑªR¯à¤O·|¤ñ¸û¤½¥­©O¡H

¤Ï¥¿³oùؤ]¨S¦b¤ñÃC¦â¥¿½T»P§_¡K
Searchman
µoªí®É¶¡: 2008-02-23 09:31
Quite a regular
µù¥U¤é: 2008-02-19
¨Ó¦Û:
µoªí¼Æ: 71
[40125] Re: ÃèÀY©Ê¯àªº½d³ò©Mµe¯À¼Æªº¤W­­
¤Þ¤å:

Ric ¼g¹D:
¦AÀ° ITO ¤j°Ý¤@¦¸
¦pªG¤£ºÞÃC¦â¡AMosaic ©î±¼ LPF
ÁÙ¬O±o¨ì¬Û¦Pªºµ²ªG¶Ü¡H
¬O¤£¬O³o¼Ë¨Ó¤ñ¸û¸ÑªR¯à¤O·|¤ñ¸û¤½¥­©O¡H
¤Ï¥¿³oùؤ]¨S¦b¤ñÃC¦â¥¿½T»P§_¡K


±z¦n¡A¨ä¹ê§Ú¤w¸g¦^µª¤F¡C

§Ú±N Foveon X3 ªº¼v¹³¡A³æ¯Â§â¥¦ Mosaic ¨ú¼Ë«á¦A¦¨¹³¡A¨Ã¨S¦³°µ LPF ³B²z¡C
http://www.cis.nctu.edu.tw/~is84012/FoveonX3/s01.gif

¨ä¹ê³oÃäÀ³¸Ó´N¬Ý±o¥X¨Ó¡A
¤£µM§Ú¦A´£¨Ñ¤j½d³òªº¹Ï¹³±z¿Ë²´¬Ý¬ÝÅo¡G

¡´SD10 ­ì¹Ïµô¤Á
http://www.cis.nctu.edu.tw/~is84012/FoveonX3/_9.jpg


¡´Mosaic ¨ú¼Ë¤§«á(µLLPF)
http://www.cis.nctu.edu.tw/~is84012/FoveonX3/_9a.jpg

µL LPF ªº±¡ªp¤§¤U·|¦³Âø¯¾¡A¦Ó¥B¼v¹³ªº²Ó¸`³¡¤À¤´µM¬O¼Ò½kªº¡C
³oÃ䪺¸Ñ¹³¤O®t¶Z¥Î²´·ú¬Ý´N¤w¸g«Ü²M·¡¤F¡C

¥²¾|
µoªí®É¶¡: 2008-02-23 22:10
Quite a regular
µù¥U¤é: 2006-02-02
¨Ó¦Û:
µoªí¼Æ: 70
[40133] Re: ÃèÀY©Ê¯àªº½d³ò©Mµe¯À¼Æªº¤W­­
¯u¬O²LÅã©öÀ´¤SÃ@¹@¤J¸Ìªº¦n¤å³¹
·PÁÂSearchman¥Sªº±M·~¸ÑªR
³s§Ú³oªù¥~º~³£¦³¼·¶³¨£¤éªº²z¸Ñ
§Ô¤£¦í­n¬°±z³Üªö
jjchern
µoªí®É¶¡: 2008-02-24 02:30
Home away from home
µù¥U¤é: 2005-05-24
¨Ó¦Û: ²H¤ô
µoªí¼Æ: 709
[40138] Re: ÃèÀY©Ê¯àªº½d³ò©Mµe¯À¼Æªº¤W­­
¤Þ¤å:

Searchman ¼g¹D:
¥H¤U¬O¨ä¥L DSLR ¦P¤@­Ó³õ´ºªº¹ê©ç¹Ï¡A
SD9 ªºªí²{©M SD10 ¤@¼Ë²M´·¡A
¨ä¥L¦U¼tµPªº Mosaic DSLR «o³£¦³¼Ò½kªº²{¶H¡C


¹Ï¤åºë±mªº¸Ñ»¡.....

Ãø©Ç§Ú­Ì¬ÝSD9¸ò SD10 ªº¼Ë±i®É¦³ºØ°_Âû¥Öª¸½Dªº·Pı...
ITO
µoªí®É¶¡: 2008-02-24 11:06
ºô¯¸ºÞ²z­û
µù¥U¤é: 2004-09-15
¨Ó¦Û: ¤é¥»
µoªí¼Æ: 30762
[40148] Re: ÃèÀY©Ê¯àªº½d³ò©Mµe¯À¼Æªº¤W­­
·PÁÂSearchman¥SºëÅPªº»¡©ú
bri-n
µoªí®É¶¡: 2008-02-25 07:41
Just can't stay away
µù¥U¤é: 2006-06-17
¨Ó¦Û:
µoªí¼Æ: 281
[40187] Re: ÃèÀY©Ê¯àªº½d³ò©Mµe¯À¼Æªº¤W­­
(1) 2 »
¾ðª¬Åã¥Ü | ·sªº¦b«e «e¤@­Ó¥DÃD | ¤U¤@­Ó¥DÃD | ­¶­º

µLµoªíÅv
 

¦^­º­¶ | ·s»D°Ï | °Q½×°Ï | ¹q¤l¬Ûï | §ë²¼ | ºô¯¸³sµ² | ¹Ù¦ñºô¯¸ | ¤å³¹¤ÀÃþ