Re: [APML] FILM QUESTIONS!! Kodak response to film production

["Bert Katzung" <katzung1@attbi.com>]

Hi Folks:
Rather than try to respond individually, this is a general response to
everyone who has already answered my questions about Kodak films: THANKS! I
will continue to collect responses for the next week or so and report back
on the concensus.

BTW, if you are thinking about responding (and I hope everyone on APML
does!) please indicate whether you're interested in BOTH 35 and 120 films or
just one or the other. The full text of my original is below if you missed
it for some reason.

Bert


----- Original Message -----
From: "Bert Katzung" <katzung1@attbi.com>
To: "APML" <astro-photo@seds.org>
Sent: Thursday, April 18, 2002 2:32 PM
Subject: [APML] FILM QUESTIONS!! Kodak response to film production questions
(really on topic!)


> Hi Folks:
> The question of the Kodak connection sort of dropped off the radar screens
> for a while, but it's now back with a direct query from that Kodak vp
I've
> been e-corresponding with. Here's how it came up: About a week ago I  sent
> him some data from Don Westergren, who is doing a scientific test of
> reciprocity failure (out to two+ hours) in most of the popular print
films,
> plus my own imaging results using Supra800, plus Pat Freeman's web URL,
> since Pat has some excellent and extensive real-world test images on his
> site. Kodak replied "very interesting, it will take me a while to review
all
> this." Yesterday I sent him some additional data from Don's testing
showing
> very quantitatively how the red layer drops after a few seconds exposure
in
> Supra800 and Portra800. WITHIN 4 HOURS  I got an e-mail from Kodak saying
> "VERY INTERESTING! Kodak never checks for reciprocity failure past 100
> seconds." (Of course we knew that from the Kodak tech tables.) Continuing,
> he said "Of course a decision to manufacture an emulsion in 120 format
> requires some assurance of use by the professional community.... What is
> your estimate of the use of one of these films (I had referred to Royal
> Gold400, Supra400, PJ400, and PPF400) in 120 format by people in
astronomy?"
>
> So here are some questions for APML:
> 1. If you could specify ONE Kodak 400 speed color print film to be
available
> in both 35 and 120 format, which would it be?
> 2. How much of each size would you buy per year? (recognize that if the
film
> you choose is Supra or Royal Gold, the minimum required to interest Kodak
> would be much smaller since Kodak still produces these two films in large
> quantities for 35mm format)
> 3. Should we just bag the whole thing and go with E200 and Provia 400F for
> 120?
> 4. Related question: While I don't really think that all the astroimagers
in
> the world can use up enough film to convince Kodak to reactivate a major
> line of films, it would be useful if we could evoke a response from astro
> people outside the APML community. Anybody know how to do that? I would be
> happy to put out messages (like the above) if someone can point me in the
> right direction. I think Warren Keller started this whole thing---Warren,
> did you have any contacts with lists outside APML?
>
>
> I would be interested in seeing your responses to these questions on APML
> for as long as Gene considers it worth the bandwidth and as soon as he
says
> "enough" you can e-mail me directly. (That will teach me to send a letter
to
> Kodak! (;~))    BTW, some of Don's GREAT data should be available shortly.
>
> Bert
>
> Bert Katzung
> katzung1@attbi.com
> www.astronomy-images.com
>

>



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