Re: New Ektachrome

["Randy R. DeFrank" <rrpd@xxxxxxxxxxxxxxxx>]

Willem-Jan Markerink wrote:

> On 23 Jun 97 at 21:35, Randy R. DeFrank wrote:
>
> > I took some pictures with this film last fall in the bright
> sunlight. At
> > that time, I loaded and unleaded a Minolta Maxxum 7000 camera in the
>
> > bright sun light, and only had fog around the perforations of the
> first
> > few frames. In one scene, on one roll, I did get a very slight bit
> of
> > fog in the frame. (I mentioned the camera type, because this camera
> also
> > has a small glass area on the back of the camera to identify the
> film
> > type.)
>
> Yikes....myths are revived under our very eyes!....;-))
> All my SLR's thusfar had film windows (and all had plastic backs, to
> kill another myth before it sticks out its ugly head....;-)).
> Never had any problems with fogging.
>

WJ: I pointed out the clear glass area, since I recalled a number of
people expressing concerns. The point is that this is not a problem, nor
should it be considered a problem.

> > Care should be taken to not remove the film from the black plastic
> cans
> > before use. Do not use any clear storage containers if there is any
> film
> > sticking out of the cassette. This is also important for the labs.
> The
> > less exposure to light, the better.
>
> With HIE, it doesn't matter if film is in or out of the
> cartridge....is
> EIR different in this respect? Is it definately only the visible part
> of the spectrum that is related to this light piping effect?
> I heard the argument of the IR-layer being covered by the visible
> layers, hence being protected....but if visible light is the fogging
> source, then this argument is not valid....mmm....

EIR should be stored in the can if the film is still sticking out of the
cassette. Under bright lights I can create extensive fog on the film, if
left for long periods of time (my test was over a 24 hour time period
.... so short periods of time are not a problem.). I will send the exact
details to the list sometime next week when I can dig out the test data.
This is related only to the visible spectrum in this case, not the
infrared. (Not what people would probably predict.)

- --
*******************************************
 Randy R. DeFrank, rrpd@xxxxxxxxxxxxxxxx
 Rochester, NY
 U.S.A.
*******************************************


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