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Re: [APML] RE: 120 format 'Centuria Super 400'... (fwd)
Geoff -
Is this the stuff? Link from B&H......watch for wrapping...
http://www.bhphotovideo.com/bnh/controller/home?O=productlist&A=details&Q=&sku=131752&is=REG
Chris
----------------------------------
Chris Cook
Astronomical & Nightscape Photography
www.abmedia.com/astro
----- Original Message -----
From: "Geoff Powers" <astropix@att.net>
To: <astro-photo@seds.org>
Sent: Thursday, May 27, 2004 10:29 PM
Subject: [APML] RE: 120 format 'Centuria Super 400'... (fwd)
> Jason writes:
> > Great letter!
>
> Thanks...
>
> And a quick response from Konica to boot! The letter was forwarded to
a senior photo engineer, a Mr. Jeff Feldman. His complete reply is below.
>
> He has provided a link to the data sheet for the 'Centuria Pro 400'
that Wei-Hao mentioned yesterday. As of earlier today, this .pdf data file
was not yet linked from Konica's US Web site. Guess we get an advanced
preview here at APML !!!
>
> The data sheet for the 'Pro 400' is nearly identical to the 'Centuria
Super 400' page, except Konica claims even finer grain and better sharpness
with the 'Pro' version. If I read it correctly, the 'Pro' version *will* be
available in the US in 120 format. I will answer him back and ask for a
little clarification on this all important question.
>
> Assuming that the Australian Web page is accurate and not in need of
an update, 120 format of the 'Centuria Super 400' is available there. Given
our 'Global Economy'... one should be able to have a few rolls by next new
moon. If you follow the AU link from my original post, there are some
dealers linked from the 'Home' page. It should be easy to find out via
e-mail if the 120 format 'Centuria Super 400' exists in Australia.
>
> Aside from 120 availability of the 'Pro' version in the US... IS
THERE ANYTHING ELSE YE APML MEMBERS WANT ME TO ASK ABOUT THESE FILMS? I will
write Mr. Feldman again tomorrow.
>
> Best... :o)
>
> --
> Geoff
>
> http://home.att.net/~astropix/
>
>
>
>
> ---------------------- Forwarded Message: ---------------------
> From: "Jeff Feldman" <jfeldman@ph.konicaminolta.us>
> To: <astropix@att.net>
> Subject: RE: 120 format 'Centuria Super 400'...
> Date: Thu, 27 May 2004 23:48:38 +0000
>
> Geoff,
>
> In answer to your question:
>
> 1) Is the emulsion detailed in the .pdf file still available, with the
> same characteristic curves shown in this data sheet?
>
> Yes. The Centuria Super generation of Konica Minolta film is the current
> emulsion recipe. I have not been made aware of any impending changes.
>
> 2) If so, is there a US dealer who has, or can get, this film in both
> 35mm and 120 format rolls?
>
> Please try: B & H Photo, Video & Pro Audio (800) 606-6969 Cameras, Digital
> Cameras, Film, Inkjet Paper 420 9th Avenue New York, NY 10001. They
usually
> carry a significant amount of Konica Products.
>
> Photo Finishers Supplies, Inc. 36-40 31st Street Long Island City, NY
> 11106 (718) 937-2771 (800) 932-0990 Fax # (718) 937-2334.
>
> However, this film is available only in 35 mm sizes, at least in the US
> market. The Japan web sight lists 35 mm only for this film as well. We
> do market a Konica Color CENTURIA PRO 400, which comes in 120 size as
> well as 35 mm.
>
> http://konicaminolta.com/products/consumer/photo/pdfe/pdf/cpro400.pdf
>
> 3) If the film still specs out as shown on the data sheet, are there any
> current plans to change it's sensitivity?
>
> Once a film comes to market, no major changes are made. Therefore you
> can count on this film remaining essentially the same throughout its
product
> life cycle. That being said, occasionally there are slight changes made,
> primarily to silver grain shape and structure. This is to increase
sharpness
> and decrees granularity. The emulsion blends and dye couplers are rarely
> altered during this time, which would protect the spectral sensitivity.
> So the films unique sensitivity to blue, green, and red light would
> remain the same. The characteristic curve may change ever so slightly
> in the extreme toe and shoulder, but all three colors would move
> together, so the color reproduction would not change. This is all
> predicated on a planned change, which I doubt will happen. So this film
> is what you're going to have for some time to come.
>
> Hope this helps. Please let me know if I can help you further.
>
> Best regards,
> Jeffrey Feldman
> Senior Photo Engineer
> Konica Minolta Photo Imaging USA, Inc.
>
> -----Original Message-----
> From: Cathy Pepe On Behalf Of Film Support
> Sent: Thursday, May 27, 2004 4:30 PM
> To: Jeff Feldman
> Subject: FW: 120 format 'Centuria Super 400'...
>
>
> Hi Jeff,
> Would you please answer this e-mail.
> Thanks,
>
> Cathy Pepe
> Supervisor, Technical Administration
> cpepe@ph.konicaminolta.us
> 201-574-4071
>
>
> -----Original Message-----
> From: Geoff Powers [mailto:astropix@att.net]
> Sent: Thursday, May 27, 2004 1:56 PM
> To: Film Support
> Subject: 120 format 'Centuria Super 400'...
>
> Hello...
>
> Myself, and several others whom belong to the International
> discussion group APML (Astro-Photography Mailing List), have an interest
> in the Konica 'Centuria Super 400' films, in both 35mm and 120 formats.
>
> We wish to use this film for long exposure astronomical imagery.
> Preliminary results look promising, but thus far only one group member
> has used the film with success, and he used it under rather ideal
> conditions.
>
> Specifically, we are interested in the emulsion with the spectral
> sensitivity curves shown on the Konica US Web site, here:
>
>
> http://konicaminolta.com/products/consumer/photo/pdfe/pdf/csuper400.pdf
>
> Also, Konica's Australian Web site lists availability of this film
> in 120 format, and shows 12, 24 and 36 exposure rolls to be available
> for 35mm. 120 format is not listed as available on the US Web site. The
> AU page may be viewed here:
>
>
> http://www.konicaminolta.com.au/product_detail.aspx?p=37&id=5&sid=5&cid=-1
>
> With the above in mind, I have three questions:
> 1) Is the emulsion detailed in the .pdf file still available, with the
> same characteristic curves shown in this data sheet?
>
> 2) If so, is there a US dealer who has, or can get, this film in both
> 35mm and 120 format rolls?
>
> 3) If the film still specs out as shown on the data sheet, are there
> any current plans to change it's sensitivity?
>
> With most film manufacturers seeking esthetic 'flesh tones', print
> films with full spectral response in the visible wavelengths are all but
> gone. Much of interstellar space is rich in glowing, ionized hydrogen
> gas, which is primarily around the 656nm line. The 'Centuria Super 400'
> is among the last possibilities.
>
> There are a couple of slide films which work well for astro, but
> with the inherent dynamic range limits and halation properties of slide
> films, a usable print film is sorely desired. Thanks for your
> consideration, and I anxiously await your reply.
>
> Sincerely,
>
> --
> Geoff Powers
>
> http://home.att.net/~astropix/
>
>
> _______________________________________________
> Astro-Photo mailing list
> Astro-Photo@seds.org
> http://seds.org/mailman/listinfo/astro-photo
>
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