FreeLists / opendtv / [opendtv] Re: Red camera lenses

["johnwillkie" <johnwillkie@xxxxxxxxxxxxx>]

Bad guess.  I visited both sites, scanned both pages.  I saw, on BOTH, a
lens diagram with a focal point, and what appeared to be an image that was
upside down from the source.  

 

What subtle issue did I miss with these instrumentation cameras?  How
macro-focusing desires all too easily lead to "bug's eye" lenses?

 

John Willkie

 

  _____  

De: opendtv-bounce@xxxxxxxxxxxxx [mailto:opendtv-bounce@xxxxxxxxxxxxx] En
nombre de flyback1
Enviado el: Wednesday, June 20, 2007 12:42 PM
Para: opendtv@xxxxxxxxxxxxx
Asunto: [opendtv] Re: Red camera lenses

 

johnwillkie wrote: 

Thee are lenses without focal points?

 

John Willkie

 

  _____  

De: opendtv-bounce@xxxxxxxxxxxxx [mailto:opendtv-bounce@xxxxxxxxxxxxx] En
nombre de flyback1
Enviado el: Saturday, June 16, 2007 12:52 PM
Para: opendtv@xxxxxxxxxxxxx
Asunto: [opendtv] Re: Red camera lenses

 

Read about Telecentric lenses:
http://www.lhup.edu/~dsimanek/3d/telecent.htm
<http://www.lhup.edu/%7Edsimanek/3d/telecent.htm> 
http://www.computeroptics.com/telecentric.html






I guess you didn't bother to open and read from either URL...