[PRCo] Re: ad car

[Fred Schneider]

The large portion of his negatives were on orthochromatic film, which was overly
sensitive to blue and undersentized to red.  Reason why skies are always white.

Charlie also often took many negatives of the same car at the same place and
time.  This was often confirmed by what appear to be duplicate pictures in
different collections.  No, they were not taken by two people standing beside
each other.  Often CJD used a tripod to insure sharpness, so each view will
appear virtually identical unless someone in the car moved.  Often those who
moved appear as a blur because of long exposures.

Don't forget that he was working in the era of ASA 25 or ASA 50 black and white
films.  On a murky Pittsburgh day, this could result in exposures as long as 1/2
second or 1 second at f 16.

"Edward H. Lybarger" wrote:

> Since Fred took it upon himself to answer the question directed to me, you
> may think you have the complete answer.  But that would be incorrect.
>
> The PTM Library has a large number of Charlie Dengler's negatives.  We also
> have books (3" binders) filled with contact prints of CJD photos for which
> the negatives are not in the collection.  And unfortunately, they're not all
> good prints.  Charlie's skies always seem to need extra burning-in.
>
> Charlie kept an envelope for each car he photographed.  If he took a picture
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