P3D FWD: TDC Model 116 and 716 Projectors

["Dr. George A. Themelis" <DrT-3d@xxxxxxxxxxxxxxxxxxxxxxxxxxx>]

Message from Gary Nored, rejected because of HTLM code...

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A few years back there was a thread regarding which of these two 
projectors is the brightest. The results of much discussion and 
calculation left open the possibility that the Model 116 _might_ be 
the brighter of the two. 

At last we have a meaningful comparison of the two. For the moment I 
have both the TDC 116 (500 watts) and the TDC 716 (750 watts), both 
with 4 inch, f 3.5 lenses. Sure enough, the Model 716 is 1/2 stop 
brighter. It's also 50 percent hotter, and somewhat noisier.  Both 
machines produce bright, clear images. The 716 might have the edge in 
situations where the ambient light was high, but without having the 
two of them side by side, one would be hard put to tell the difference 
in the projected image. 

Gary Nored


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