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http://indianaquariumhobbyist.com/community/ :: View topic - Camera phones and P&S
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Camera phones and P&S
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Madan
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PostPosted: Mon Mar 14, 2011 10:55 pm Post subject: Re: Camera phones and P&S Reply with quote

 Madhu,  any  camera  P&S  or  DSLR,  with  DSLR  it's  each  lens,  keepers  come  with  practice  with  the  equipment.
 
 Trevor  took  about  7000  pictures  initially,  99%  of  which  he  deleted.  He's  the  only  one  I  know  who  "wore"  out  a  P&S  shutter  mechanism.
 Usually  the  battery  goes  bad,  or  there  is  some  other  issue,  and  the  camera  is  discarded.  when  he  changed  cameras  the  number  of  pics  he  took  increased  again.
 
 One  advantage  of  P&S  you  can  get  to  an  aperture  of  f/32  in  auto  made.  That's  a  massive  help  in  web  usage.  
 Look  at  print,  then  come  out  the  woes  of  P&S.
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PostPosted: Tue Mar 15, 2011 12:29 am Post subject: Re: Camera phones and P&S Reply with quote

 Thanks  for  all  the  tips!
 I  managed  to  get  1  out  of  30  clicks  right  since  I  had  a  really  hard  time  getting  the  auto  focus  to  do  what  I  wanted.
 Unfortunately  the  subject  decided  at  the  last  1/100th  of  a  second  to  turn  away  and  not  show  his  face  to  the  camera.  Sad  
 
 I  will  post  the  snaps  anyways  ..  so  here  goes  my  first  snap  of  my  little  fellas  ..
 
 Original  Snap
 
 
 
 After  editing  using  steps  suggested  by  Nayak  in  the  first  post
 
 
 
 I  think  I  sharpened  the  image  too  much  :-|
 
 The  details
 
 Camera:  FUJIFILM  Finepix  A500
 Date:  14-Mar-2011  
 Flash:  Auto
 Used  Auto-focus
 White  balance:  Auto
 ISO:  100
 Mode:  Manual,  Macro
 
 It  was  interesting  to  note  in  some  of  the  snaps  how  dirty  the  glass  looked  since  my  tank  looks  spec  clean  to  the  naked  eye.
 
 Will  try  and  capture  my  pleco  in  all  its  glory  tomorrow.


Last edited by sarge on Wed Mar 16, 2011 9:57 am; edited 2 times in total
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Tirtha C
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PostPosted: Tue Mar 15, 2011 1:21 am Post subject: Re: Camera phones and P&S Reply with quote

 Nice  thread  Nayak.
 
 Clicked  the  below  pictures  long  back  with  Sony  W-5.  Sorry  for  not  having  the  details  with  me.
 
 
 
 
 
 
 
 
 
 Non  fishy  yet  Aquatic
 
 
 
 
 
 didn't  use  any  flash  while  clicking.
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rocky2
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PostPosted: Tue Mar 15, 2011 1:42 am Post subject: Re: Camera phones and P&S Reply with quote

 Really  good  poat  will  learn  new  things
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PostPosted: Tue Mar 15, 2011 8:20 am Post subject: Re: Camera phones and P&S Reply with quote

                                                   
Madan  wrote  (View  Post):                

 One  advantage  of  P&S  you  can  get  to  an  aperture  of  f/32  in  auto  made.                  

 
 Does  P&S  allow  us  to  get  to  such  small  apertures  sir?   because  once  while  having  a  chat  with  a  friend  and  discussing  about  a  click  for  which  i  took  a  Tamron  70-300  to  an  aperture  as  small  as  f/45  he  was  telling  me  such  a  shot  was  never  possible  with  a  P&S  as  they  seldom  allow  us  anything  over  f/17.   Haven't  used  P&S  extensively  but  the  ones  I've  handled  and  heard  had  a  max  f/number  of  f/8.
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PostPosted: Tue Mar 15, 2011 9:45 am Post subject: Re: Camera phones and P&S Reply with quote

                                                   
madhu_ulysses  wrote  (View  Post):                
 because  once  while  having  a  chat  with  a  friend  and  discussing  about  a  click  for  which  i  took  a  Tamron  70-300  to  an  aperture  as  small  as  f/45  he  was  telling  me  such  a  shot  was  never  possible  with  a  P&S  as  they  seldom  allow  us  anything  over  f/17.   Haven't  used  P&S  extensively  but  the  ones  I've  handled  and  heard  had  a  max  f/number  of  f/8.                

 
 madhu,  Tamron  70-300  I  am  sure  can  never  go  smaller  than  f/22.  Even  at  f/22  the  picture  is  distorted.  The  sweet  spot  for  a  Tamron  70-300  is  f/8  or  f/11.  I  have  never  heard  of  f/45  in  a  slr  zoom.  It  must  be  f/4.5
 P&S  might  say  the  lowest  f  stop  is  8,  but  that  translates  to  almost  f/64  in  real  life.
 Do  some  reading  up  on  P&S.
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PostPosted: Tue Mar 15, 2011 9:59 am Post subject: Re: Camera phones and P&S Reply with quote

                                                   
Madan  wrote  (View  Post):                

 madhu,  Tamron  70-300  I  am  sure  can  never  go  smaller  than  f/22.  Even  at  f/22  the  picture  is  distorted.  The  sweet  spot  for  a  Tamron  70-300  is  f/8  or  f/11.  I  have  never  heard  of  f/45  in  a  slr  zoom.  It  must  be  f/4.5
                 

 
 This  is  the  shot  I  was  talking  about  sir:
 
 Solar  Eclipse
 
 and  this  was  with  the  same  lens  with  aperture  36
 
 Full  Moon
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hrishi007
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PostPosted: Tue Mar 15, 2011 10:09 am Post subject: Re: Camera phones and P&S Reply with quote

 Wow,that  is  indeed  useful..
 Would  try  and  click  some  pics  and  post  tommorrow   Smile
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PostPosted: Tue Mar 15, 2011 10:33 am Post subject: Re: Camera phones and P&S Reply with quote

 Thanks  for  the  info  Madhu,  the  Tamron  can  go  to  f/45.
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PostPosted: Tue Mar 15, 2011 11:18 am Post subject: Re: Camera phones and P&S Reply with quote

 Alright,  Great  going  Ranjit!  Very Happy  
 
 Now  to  proceed,
 
 We  get  a  camera  and  on  default  it  is  set  in  auto  mode.
 Trust  me,  it  takes  a  long  long  while  for  someone  to  move  on  from  the  auto  mode.  I  took  around  2  years,  and  we  are  in  no  hurry.  
 
 The  first  thing  to  do  with  your  camera  when  you  want  to  click  the  pictures  of  your  fish  is
 
 1)  Turn  off  the  Red  eye  reduction
 2)  Turn  off  the  AF(Auto  focus)  illuminator.

 
 The  first  one  stutters  your  flash  and  the  second  one  illuminates  the  subject  with  a  red  light  before  the  actual  clicking  of  the  pictures.  This  causes  the  skittish  fishes  to  scoot  away  and  you  will  be  left  with  the  pictures  bereft  of  any  subject.
 
 Now  in  the  Auto  mode  your  options  are  minimal,  since  in  this  mode  the  Camera  is  supposed  to  take  care  of  all  the  parameters  for  you.
 But  you  can  decide  somethings  for  yourself,  and  they  are
 
 1)  The  Macro  mode.  Always  keep  this  on  or  your  camera  will  refuse  to  AF  on  the  nearer  subject.
 2)  The  EV  Mode.  You  can  increase  the  Exposure  value  or  decrease  it.  (This  will  have  to  work  in  place  of  increasing  or  decreasing  the  flash  intensity,  since  in  auto  mode  you  do  not  have  that  option)
 3)  Flash  on  or  off.
 
 By  varying  these  three  parameters  you  can  take  pictures  like....
 
 Camera-Sony  DSC  H-5  
 Date:  22-Dec-2006  
 Flash:  Used   -0.1  
 Focal  length-  21.1mm  
 Exposure:  1/60  
 F  number:  f/3.5  
 White  balance-  Auto  
 Metering  mode:  Matrix  
 Exposure  program:  Auto  programme
 ISO:  160
 
 
 Camera-Sony  DSC  H-5  
 Date:  26-Sep-2007  
 Flash:  Not  Used   
 Focal  length-  9.3mm  
 Exposure:  1/20  
 F  number:  f/3.2
 White  balance-  Auto  
 Metering  mode:  Matrix  
 Exposure  program:  Auto  programme
 ISO:  320
 
 
 Camera-Sony  DSC  H-5  
 Date:  16-July-2007  
 Flash:  Not  Used   
 Focal  length-  19.8mm  
 Exposure:  1/10  
 F  number:  f/3.5
 White  balance-  Manual  
 Metering  mode:  Centre  weight  
 Exposure  program:  Auto  programme
 ISO:  200
 
 Regards,


Last edited by rasikanayak on Wed Mar 16, 2011 9:33 am; edited 1 time in total
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PostPosted: Tue Mar 15, 2011 11:40 am Post subject: Re: Camera phones and P&S Reply with quote

 @Nayak:  Sorry  the  details  I  posted  are  a  little  misleading.  What  I  meant  was  that  I  shot  with  flash  in  auto  mode  meaning  the  cam  automatically  decides  whether  flash  is  needed.
 The  snap  was  actually  taken  in  Macro  Mode.  But  I  cannot  switch  on  or  off  the  auto  focus.
 
 Will  definitely  try  to  play  around  with  the  ISO,  White  balance  and  with  the  flash  switched  off  in  macro  mode.
 
 Also  in  the  snaps  above  you  have  mentioned  focal  length.  Does  that  mean  that  you  have  switched  off  auto  focus  and  are  setting  the  focus  manually  for  each  shot?
 
 Why  did  you  use  higher  ISO  for  the  2nd  and  3rd  snaps?  Is  it  anyway  related  to  flash  not  being  used?
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PostPosted: Tue Mar 15, 2011 11:42 am Post subject: Re: Camera phones and P&S Reply with quote

 Very  sweet  Nayak.   Thumb Up  
 BTW,  I  remember  a  pic  of  your  whiptail  and  its  eggs  with  the  embryo  with  all  the  details.   Do  you  still  have  that  shot  Nayak?
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PostPosted: Tue Mar 15, 2011 2:06 pm Post subject: Re: Camera phones and P&S Reply with quote

 One  question  to  experts.  Why  we  need  such  a  smaller  aperture  like  f32  or  f45?  What  kind  of  depth  we  want  to  achieve?
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PostPosted: Tue Mar 15, 2011 4:13 pm Post subject: Re: Camera phones and P&S Reply with quote

 Tirtha  have  you  ever  wondered  why  the  DOF  with  a  P&S  is  much  more  ?  Why  is  it  difficult  to  get  a  out  of  focus  background  with  P&S  ?
 
 See  Nayak's  2nd  picture  above,  with  f/3.2  he  has  the  whole  tank  in  focus  !
 Can  you  achieve  that  with  f/3.2  and  a  dslr  lens  ?
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PostPosted: Tue Mar 15, 2011 4:24 pm Post subject: Re: Camera phones and P&S Reply with quote

 Tirtha,
 The  f/45  was  an  extreme  case.   Last  year  when  we  had  the  eclipse  happening  at  around  1:40  pm,  I  was  left  with  no  other  option  to  push  it  to  the  very  limit  in  order  to  get  the  twilight  effect.   Anything  less  than  30,  it  would  look  nothing  like  an  eclipse.   As  with  the  moon  shot,  anything  less  than  25,  your  moon  will  look  almost  flat  and  you  will  loose  the  details  around  the  corner,  because  its  a  sphere  and  only  that  sorta  small  aperture  would  be  enough  DOF  to  get  the  details  around  the  corners.
 
 Tea  Plantation
 The  above  image  again  was  f/22  shot  at  mid  day.   If  we  were  to  go  with  the  conventional  f/13  or  anything  less,  the  green  at  the  far  end  would  have  looked  almost  flushed  out  at  that  point  of  time  with  the  sun  lying  right  behind  your  head.
 
 Midday  Slow  exposure
 This  again  is  f/32.   Hadn't  it  been  for  the  extremely  small  aperture,  i  wouldn't  have  even  dreamed  about  a  slow  exposure  of  1/8  sec  in  direct  sunlight.   Add  to  it  the  DOF  we  intend  in  such  shots.
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