Re: TDC's Barn Door (Earl's Problem with TDC)

[P3D Dr. George A. Themelis <fj834@xxxxxxxxxxxxxxxxxxxxx>]

Dalia writes:

>The barn door doesn't have any usefulness.  It was used to block the second
>lamp when viewing a single flat slide and that the same can be accomplished
>by not turning on the lamp that would have been blocked by the barn door.

Are you sure about that?  If showing single slides, of course you don't
turn on both lamps.  I cannot imagine the TDC engineers to have been that 
stupid!  I was under the impression that the barn door bocks the light that
leaks when a stereo slide is being inserted in the carrier, because there
are no curtains in the carrier to do that.  I have a TDC with barn door at
home (these are the older ones that come with the 7p carrier) and will
check it tonight.

>FYI later TDC 116 came with a deleted barn door.

Yes, but they also came with a different slide carrier, one that has the
internal curtains to block the light (but does not show 7p), same carrier
used in the 716 models.

George Themelis


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