Cameras & lenses

495 views
440 views

Published on

Published in: Education
0 Comments
1 Like
Statistics
Notes
  • Be the first to comment

No Downloads
Views
Total views
495
On SlideShare
0
From Embeds
0
Number of Embeds
16
Actions
Shares
0
Downloads
14
Comments
0
Likes
1
Embeds 0
No embeds

No notes for slide

Cameras & lenses

  1. 1. Cameras  &  Lenses   Digital  SLR’s  
  2. 2. Some  Basics  -­‐  DSLR’s   •  Lightproof  box   –  Keeps  light  out/let’s  desired  light  in   •  Lens   –  OpAcal  glass   –  Light  enters;  forms  an  image  on  a  chip   –  Lens  elements  mounted  together   •  Recording  medium   –  Chip  is  a  light  sensiAve  device  
  3. 3. Some  Basics  -­‐  DSLR’s   –  Sensors  on  the  chip  send  out  electrical  signals  –   converts  to  digital  form   •  Viewfinder   –  Mirrors/glass  prism  that  let’s  you  view  directly   through  the  lens   –  DSLR’s  have  through-­‐the-­‐lens  viewfinders   •  Focusing  Control   –  Sharp  pictures   –  Rotate  lens  
  4. 4. Some  Basics  –  DSLR’s   –  Autofocus   –  Manual  focus   •  ShuLer   –  Control  length  of  Ame  (shuLer  speed)  –  light  is   allowed  to  enter  the  camera   –  Manual  or  automaAc   •  ShuLer  release   –  BuLon  that  acAvates  the  shuLer    
  5. 5. Some  Basics  –  DSLR’s   •  Diaphragm   –  Controls  the  amount  of  light    -­‐  varies  the  lens   opening   –  Series  of  leaves   –  Manual  or  automaAc   •  Image  advance     –  Digital  cameras  use  the  same  sensor  over  and  over  
  6. 6. Some  Basics  –  DSLR’s   •  Power  Supply   –  BaLery  requirement   –  AA  cells   –  Specifically  designed  for  camer   –  BaLery  charger  
  7. 7. Types  of  Cameras   •  Single  use   •  Point  &  shoot   •  SLR   –  Interchange  lenses   •  DSLR   •  Medium  format   •  Large  format   •  Cell  phone  &  video  

×