Mailinglist Archives:
Infrared
Panorama
Photo-3D
Tech-3D
Sell-3D
MF3D

Notice
This mailinglist archive is frozen since May 2001, i.e. it will stay online but will not be updated.
<-- Date Index --> <-- Thread Index --> [Author Index]

re: closeup lens focus

  • From: T3D Richard M. Koolish <koolish@xxxxxxx>
  • Subject: re: closeup lens focus
  • Date: Fri, 20 Dec 96 9:17:48 EST
If the primary lens is set to infinity, it would be expecting parallel
rays.  For the closeup lens to produce parallel rays, the subject would
have to be at the focus of the closeup lens.  So wouldn't you measure
the subject distance from the closeup lens?  Or is this analysis too
simple?


------------------------------

End of TECH3D Digest 62
***********************
***********************
 Trouble? Send e-mail to 
 wier@xxxxxxxxxxxxxxx 
 To unsubscribe select one of the following,
 place it in the BODY of a message and send it to:
 listserv@xxxxxxxxxxxxxxx 
   unsubscribe photo-3d
   unsubscribe mc68hc11
   unsubscribe overland-trails
   unsubscribe icom
 ***********************