[photo-3d] Re: Externally twinnables

[JNorman805@xxxxxxx]

Don Lopp writes:

<<AS for twiunning Rebels I think one should consider them as a goo
possibility as I have a friend who is using a pair-the main weakness appears
to be in using 28- 70 zooms which are about impossible to accurately set
equal focal length settings on each lens a common problem with zoom lenses,
especially if they are of the push pull type>>

I've been using a pair of Rebel X cameras for about 4 years, and have been quite satisfied.  I use the Canon 35-80 zoom lenses, and have no problem setting equal focal lengths.  I linked them with a system of industrial toothed belting cemented around the zoom rings on the lens barrels, driven by matched toothed belting cemented around nylon idler wheels that contact both lens barrels -- that when I zoom either one, the other rides right along with it.  Since exposure (I use aperture priority) and focus are both automatic, all I have to worry about is composition and widow placement.  Shutter synch is generally perfect, although some conditions can and do fool the system and cause one camera to fire while the other is still "hunting."  But generally, synch is right on the button, even with flash.

Jim Norman