[photo-3d] Viewer magnification , MORE IS NOT ALWAYS BETTER

[Jon Golden <3dman@xxxxxxxxxxx>]

Many people seem to equate more magnification with "being better" when it
comes to a stereo viewer.  It does not work that way.

Most "true" full frame viewers (Thats 24 x 36mm that you can see
hoirizontally or vertically") that are sharp to the corners (4-6X
magnification with 45-60mm FL) could not possibly have the magnification of
the older Realist format or View Master  format viewers (X7-X10).

Trying to use a X10 lens with a full frame image would be like going to the
movies and sitting ten feet forward of the front row up on the screen stage.
You coudl not possibly see the whole image.

Other than that...I am going back to the fifth -tenth row center with my
popcorn, to watch the show....and I will defer the the view and lens maven
Dr T...who has studied those older viewers extensively and let him clarify.

Just a bit of melted butter pleeeeze!

Jon G

>>
   From: L <jet_lk@xxxxxxxxx>

>>I am confused by loupes and their magnification.  I am
>>assuming that a 4X magnification loupe is equal to a
>>specific focal length, but I don't know that for sure,
>>or for that matter, what the focal length would be.

I think I should stick with a lens that has a focal
length in the 40-60mm range.  I shoot most of my
stereo shots at 50, but sometimes I zoom up to 70mm or
out to 35.

Lincoln