Loading ...
Loading ...
Loading ...
All!operational!functions!were!supported!by!the!electrical!communication!between!the!lens!and!camera.!!
This! comm unication! allowed! focusing! motors! to! be! optimally! positioned! within! each! individual! lens!
design,! which! supported! fast! auto! focus! systems.! ! The! aperture! control! was! also! electronic! which!
supported! auto-aperture! functionalities.! ! In ! the! e n s u in g ! decades! these! core! design! strategies!
empowered!a! progressive!imag in g ! evo lu tio n ! tha t! witne ssed ! the ! em ergence!of!an! extraordinary!broad!
range!o f! zoo m ! a nd ! p rim e! le nse s!that!were!flanked!initially ! by! SLR!35mm! film!cameras!and!ultimately!the!
arrival!of!the!all-digital!DSLR!camera!in!the!early!21
st
!century.!
In!1995 !th e !fir st!lens!with!built-in!image !sta b iliz at ion !s ys te m!became!possible!based!upon!that!electronic!
communication! (the! EF75-300mm! f/4-5.6! IS! USM).! ! The! lens-cam era! movem ents! detected! within! the!
lens! itself! are! processed! and! control! signals! generated! that! actuate! correction! optics! within! the! lens.!!
That! large! diameter! mount! and! the! electronic! communication! continue! to! empower! new! features! in!
both!lens!and!cam era!to!this!day.!!!And!the!paced!expansion!of!EF!lenses!and!cameras!over!the!years!
speaks!a!great!deal!about!the!success!of!this!remarkable!design!strategy.!
!!!!!!!!!!!!!!!!
!
Figure& 1&&&&&&&Three$ decades$of$the$ Canon$ EOS$ system$has$ seen$ an $ impressive$ evolution$ of$lenses$and$
cameras$that$presently$serve$a$worldwide$market$at$many$levels$
&
2.0& &&&CANON&EOS&SYSTEM&EXTENDS&TO&DIGITAL&CINEMA&
Today’s!world! production! community!—! both!theatrical!motion! picture!and! episodic!television!—!will!
utilize! all! m anner! of! lens-camera! combinations! to! achieve! their! creative! aspira tions ! an d! m e et! th eir!
production! budgets.! ! Major! movies! have! been ! produced! that! incorporated! DSLR’s! coup led! to! digital!
cinema!lenses!and!high-end!digital!cinema!cameras!using!EF!lenses.!!
!
2!
Loading ...
Loading ...
Loading ...