P3D TDC Vivid Viewer

[Jon Golden / 3D Concepts <3dman@xxxxxxxxxxx>]

JVapor7@xxxxxxx wrote:

I was just informed the Stereo Vivid initially came with German lenses.
Anybody out there know how common these are?  How do the earlier lenses stack
up against the later?  I take it the difference is clearly marked?
thanks  J

I posted a TDC vivid last week on S3D and someone responded with this
description of the lenses in the viewer...which IMHO are the best of the
older vitage viewers....with the Wollensak in a close second place.  I am
not stating that what is writeen below is accurate...but only that is was
forwarded to me.  Jon G

The TDC vivid viewer has APOCHROMATIC lenses , the highest category of
color corrected lenses.
The rest of our viewers (red button etc etc) have ACHROMAT
lenses, and are not color corrected for the 3 primary colors,
usually only corrected to a reasonable tolerance.  Achromatis
obvviously work great and we can not see any color aberrations
through them.  Apochromats are a  step higher, so it's a better
lens that commands a premium price.  This is especially needed
for enlarger lenses, but makes the TDC that much better.


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