[rollei_list] Re: Neopan 400 in Ultrafin, Neopan 400 emulsion
- From: "mail1" <mail1@xxxxxxxxxxxxxxxxx>
- To: <rollei_list@xxxxxxxxxxxxx>
- Date: Tue, 2 Sep 2014 13:50:16 -0700
Error correction-
. Sensitizing dyes are precisely and densely arrayed on
the halide particle surfaces, enhancing latent image formation and improving
green and red light absorption to balance with the increased blue light
absorption
..
From: rollei_list-bounce@xxxxxxxxxxxxx
[mailto:rollei_list-bounce@xxxxxxxxxxxxx] On Behalf Of mail1
Sent: Tuesday, September 02, 2014 11:42 AM
To: rollei_list@xxxxxxxxxxxxx
Subject: [rollei_list] Re: Neopan 400 in Ultrafin, Neopan 400 emulsion
Fuji in 1986 published a one page leaflet stock # AB706, Ref. no.
AB-706E(SK.88.09.SA.MW) introducing Neopan 400 film
Fuji closed the document with a description of the film emulsion technology.
High-Efficiency Light Absorption Grain Technology
The High-Efficiency Light Absorption Grain Technology efficiently uses
light for optimized film performance. High-density iodine ions are
incorporated into the silver , enhancing halide crystals, greatly increasing
blue light absorption. Sensitizing dyes precisely and densely arrayed on the
halide particle surfaces, enhancing latent image formation and improving
green and red light absorption to balance with the increased blue light
absorption.
Fuji introduced in 1988, Document Ref. No PB-811E9ESK-89-10.SA.MW),
their New polymer Matrix and Imaging Sharpening Layer (ISL) Technology
with the release of Neopan 1600.
Fuji previously introduced their High Efficiency Light Particles with
NEOPAN 400 Professional film for more efficient use of light to improve film
performance.
Now, Fiji proudly introduces advanced-type High Efficiency Light
Particles thanks to the new Polymer Matrix Technology of our NEOPAN 1600
Professional film. Light response is maximized for increased film speed
without graininess or increase in processing times.
An Image Sharpening Layer fixes image sharpening dyes in place and at
high densities, thereby eliminating gray scale blurring and facilitating
prompt gye flow during processing, resulting in sharply defined pictures
every time.
Fuji introduced Neopan 100 Acros data sheet AF3-083E
Worlds Highest Standard in Grain Quality
Through the incorporation of Fujifilm's new proprietary
.Super Fine-å Grain Technology., this film delivers the
world's highest standard in grain quality among ISO-
100 black-and-white films. Its fine grain, along with its
superb grain alignment and rich gradation, makes possible
smoother and sharper textural depiction, even in
big enlargements.
. Excellent Processing Characteristics
By incorporating the newly developed .P.I.D.C.
(Precision Iodine Distribution Control) Technology.,
NEOPAN 100 ACROS (120) provides stable processing
results not only during manual processing with all
kinds of developers and fixers, but in every type of
automatic processor as well.
Previous to Acros Fuji produced NEOPAN SS 135 Data sheet AF3-411E
Fuji has been on the cutting edge of film technology. I have yet to find to
my liking a satisfactory replacement for NEOPAN 400 120 film.
Ilford used the term in ILFOPRO vol. 3 #4 fall 1995
ILFORDs proprietary three-layer core shell crystal emulsion technology
that produces extremely fine grain and unparallel sharpness.
Kodak Professional Black-and-White Films F-5 8-90 BX Describes Kodak T-GRAIN
When the scientists at Kodak designed the silver-halide crystals for
T-GRAIN Emulsions, the shape of the crystals became an important factor in
film characteristics such as granularity and speed. The greater surface
area of TGRAIN Emulsion crystals improves speed without sacrificing fine
grain.
Kodak included a electron microscopic photo of the T-GRAIN crystals verses
conventional silver-halide crystals. Obviously the T-GRAIN crystals are
better formed than the convention crystals, being larger in surface area
they appear to be flatter. They did not indicate scale or any information
regarding relative size or source of conventional crystals. I wonder about
this.
Maco Rollei R3 film description
Cubic texture of silver halides instead of flat crystals
Im not sure my response clears up the issue surrounding flat crystals.
Jonathan Ayers
From: rollei_list-bounce@xxxxxxxxxxxxx
[mailto:rollei_list-bounce@xxxxxxxxxxxxx] On Behalf Of Chris Burck
Sent: Wednesday, August 20, 2014 1:14 PM
To: rollei_list@xxxxxxxxxxxxx
Subject: [rollei_list] Re: Neopan 400 in Ultrafin
On Aug 20, 2014 7:32 AM, "Richard Urmonas" <richard@xxxxxxxxxxx> wrote:
>Neopan was a modern flat crystal >film,
I thought that only Across was of the tabular type, and that all the rest of
the Neopan line were "traditional" emulsions.
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