Try this test with the TL120

Shoot the left lens only, slide the camera on a slide bar, to the left,
the exact distance of the interocular separation, take a pix with the
right lens... register the two images over each other on a light box,
inspect with a 4x loupe. See if you can 1) see different size images
(shows how well matched the fl's are), and 2) see if any parts of the
scene are mis aligned (demonstrates how parallel the two lenses are)

good stereo camera test...not sure the 3d world factory does this...

Bill


Dale Yingst wrote:

> -John wrote,
>
> I've done slide bar images with the TL120 by using
> only the right lens:
>
> 1) Install the right lens cap on the left lens
> (and rotate the excess cover out of the way)
>
> 3) Advance the film one (1) frame to the next even number
> (this cocks the shutter, too)
>
> 4) Slide the camera and expose the second frame
> (I suggest you slide the camera to the left)
>
> It takes a smart guy like you to guide an idiot like me to this
> simple solution. Another dumb thing I did this weekend was
> switching to individual lens covers, then removing only the
> viewfinder lens cover, composing and taking four shots.
>
> Dale Yingst
>
>
>