Konica Corporation

Konishiroku Photo Industry Co., Ltd.

Yoshitaka Yamada

Toshifumi Iijima

Hiroshi Shimazaki

Kenji Kumashiro

Toshihiko Yagi

Takashi Kamio

Hiroshi Kashiwagi

Hirofumi Ohtani

Satoru Shimba

Shinya Shimura

Syoji Matsuzaka

Hideki Takiguchi

Yoshikazu Watanabe

Masaru Iwagaki

Hidetaka Ninomiya

Hiroshi Ikeda

Toshihiko Kimura

Hideaki Haraga

Atsuo Ezaki

Yoshihiro Haga

Hideo Akamatsu

Fumio Hamada

Kuniaki Uezawa

Hiroshi Menjo

Yoshiharu Mochizuki

Kiyotoshi Yamashita

Miki Kon

Yoshihide Urakawa

Takeshi Sampei

Masao Iwamura

A camera including a photographing lens and a finder to provide a viewing image field through which an object can be observed. The field ratio of the viewfinder field to the photographed image field on the film is 87% to 120% and the exposure value of the camera is 11 to 13.5.

Camera with specific exposure value and viewfinder field ratio ranges

The present invention describes a silver halide color negative photographic light-sensitive material having an improved graininess and an excellent image quality even when picture-taken under various light sources each having a color temperature different from daylight. A silver halide color photographic material comprises a light-sensitive layer unit containing a red-sensitive silver halide emulsion and a cyan coupler, a light-sensitive layer unit containing a green-sensitive silver halide emulsion and a magenta coupler, and a light-sensitive layer unit containing a blue-sensitive silver halide emulsion and a yellow coupler, wherein RMS granularity of at least one of the light-sensitive layer units has the following relations;

Silver halide color negative photographic light sensitive material

Disclosed is a method for forming color photographic images which comprises printing of color images obtained by use of a color photographic light-sensitive material, having on a support, a blue-sensitive silver halide emulsion layer, a green-sensitive silver halide emulsion layer and a red-sensitive silver halide emulsion layer onto a printing color photographic light-sensitive material having on a support, a yellow color forming layer, a magenta color forming layer and a cyan color forming layer, wherein the following requirements (A) and (B) are fulfilled,

Method for forming color photographic images improved in color

Disclosed is a method for forming a silver halide color photographic image comprising: exposing a silver halide color photographic light-sensitive material for photographing which comprises a support and provided thereon at least one blue-sensitive silver halide emulsion layer (B layer), at least one green-sensitive silver halide emulsion layer (G layer) and at least one red-sensitive silver halide emulsion layer (R layer) to light to obtain a latent image; processing said latent image to obtain a color negative image; printing said color negative image on a silver halide color photographic light-sensitive material for printing which comprises a support and provided thereon a yellow color-forming layer (Y layer), a magenta color-forming layer (M layer) and a cyan color-forming layer (C layer) to obtain a color photographic image; wherein: (A) the spectral sensitivity distribution of the G layer S.sub.G (.lambda.) has a maximum value at a certain point .lambda..sub.Gmax within the wavelength region 525-560 nm, and the spectral sensitivity of the G layer at 570 nm S.sub.G570 accounts for 40% or less of said maximum value; and (B) the spectral density distribution of a dye formed in the Y layer by processing said color photographic light-sensitive material for printing S.sub.Y (1) has a maximum value at a certain point 1.sub.U.sup.50 within the wavelength region 430-460 nm, and said maximum value is reduced to half at a certain point l.sub.Y.sup.50 within the longer wavelength region 480-500 nm. By the method of the invention, it is possible to obtain a color photographic image in which colors, in particular, yellow and skin color, is reproduced with an extremely high degree of accuracy.

Method for forming a silver halide color photographic image

Disclosed is a silver halide color photographic light-sensitive material having at least one blue-sensitive silver halide emulsion layer, at least one green-sensitive silver halide emulsion layer and at least one red-sensitive silver halide emulsion layer on the support, wherein the maximum sensitivity wavelength .lambda..sub.B of the spectral sensitivity distribution in said blue-sensitive silver halide emulsion layer at 400 nm.ltoreq..lambda..sub.B .ltoreq.470 nm, the sensitivity of said blue-sensitive silver halide emulsion layer at 480 nm does not exceed 40% of the sensitivity at the maximum sensitivity wavelength .lambda..sub.B and the gradient of said blue-sensitive silver halide emulsion layer after blue light separation exposure .gamma..sub.SB and the gradient of said blue-sensitive silver halide emulsion layer after white light exposure .gamma..sub.WB bears the relationship of .gamma..sub.SB /.gamma..sub.WB .ltoreq.1.25. The silver halide color photographic light-sensitive material according to this invention is capable of exactly reproducing the hues that have been difficult to reproduce, particularly the hues of red to magenta colors and the hues of green colors such as blue-green and green without being accomplished by degradation of the reproducibility for the primary colors.

Silver halide color photographic light-sensitive material offering

The improved color photographic material has on a support at least one blue-sensitive silver halide emulsion layer, at least one green-sensitive silver halide emulsion layer and at least one red-sensitive silver halide emulsion layer, each of those emulsion layers having a specified spectral response. This color photographic material has high chroma and insures faithful reproduction of color hues even under illumination with a fluorescent lamp.

Color photographic material

A silver halide light-sensitive color photographic material improved on the sharpness and the graininess of images is disclosed. The photographic material of the invention comprises a support having thereon photographic component layers including a red-sensitive silver halide emulsion layer, a green-sensitive silver halide emulsion layer and a blue-sensitive silver halide emulsion layer, in which the photographic component layers have a total dry thickness of not more than 18 .mu.m , and at least one of the photographic component layers contains a coupler capable of releasing a scavenger which is capable of scavenging the oxidation product of a color developing agent.

Light-sensitive color photographic material improved on the sharpness

A silver halide color photographic photosensitive material is disclosed. The material comprises a support and coated thereon at least one green sensitive silver halide emulsion layer, at least one red sensitive silver halide emulsion layer, a plurality of blue sensitive silver halide emulsion layers having different photosensitive speed, said material comprising three or more silver halide emulsion layers having substantially the same color sensitivity, wherein a first blue sensitive silver halide emulsion layer is provided on the outermost side from the support, at least one of green sensitive silver halide emulsion layers and at least one of red sensitive silver halide emulsion layers are provided between the first blue sensitive silver halide emulsion layer and a second blue sensitive silver halide emulsion layer with lower photosensitive speed than the first blue sensitive silver halide emulsion layer, and the layer with highest photosensitive speed of said three or more silver halide emulsion layers having substantially the same color sensitivity has a maximum color density of not higher than 1.0.

Silver halide color photographic photosensitive material

A photographic material including a support having thereon photographic component layers including a red-sensitive emulsion layer containing a cyan coupler, a green-sensitive emulsion layer containing a magenta coupler and a blue-sensitive emulsion layer containing a yellow coupler. At least one of these silver halide emulsion layers contains a diffusible DIR compound, wherein the total dry-thickness of the photographic component layers is not greater than 16 .mu.m and the total silver halide content of the silver halide emulsion layers is not more than 6.5 g/m.sup.2 of silver. A colloidal layer, formed in a position farther from the support than the silver halide emulsion layer which is farthest from the support, contains substantially non-light-sensitive fine grain silver halide grains.

Silver halide color photographic light-sensitive material

A silver halide color photographic light-sensitive material comprising a support having arranged thereon at least two each of red-sensitive layers, green-sensitive layers and blue-sensitive layers, wherein, with respect to each of the red-sensitive layers, the blue-sensitive layers and the green-sensitive layers, there are not less than two silver halide layers having different sensitivities, said material satisfying the following four requirements:

Silver halide color photographic light sensitive material

A silver halide color photographic light-sensitive material is disclosed. The material is improved in a developing stability, whose red density-green density balance is hardly affected even by change in a developing condition. The photographic material comprises a support and, provided on a side of the support, at least one red-sensitive silver halide emulsion layer and at least one green-sensitive silver halide emulsion layer. The total thickness of the layers provided on the emulsion coated side of the suport, is within the range of from 5 to 18 .mu.m. The red-sensitive emulsion layer contains a cyan-dye forming coupler and a clored cyan-dye forming coupler, and a ratio of the colored cyan-dye forming coupler to the total amount of the cyan-dye forming coupler and the colored cyan-dye forming coupler is within the range of from 15 to 80 mol %.

Silver halide color photographic light-sensitive material comprising a

A silver halide color photographic material improved in image quality such as sharpness and graininess is disclosed. The silver halide color photographic material is comprises support having thereon photographic component layers comprising at least two silver halide emulsion layers, adjacently arranged to each other, having the same color sensitivity and different speed from each other. In this photographic material the highest speed layer among these emulsion layers contains a DIR compound capable of releasing a diffusible development inhibitor or a diffusible compound capable of releasing a development inhibitor, and the total thickness of the silver halide emulsion layers is within the range of from 1.5 .mu.m to 5 .mu.m, and the silver halide emulsion layers are allowed to have the interposition of a non-light-sensitive intermediate layer.

Disclosed is a light-sensitive silver halide color photographic material comprising a light-sensitive multi-layer color photographic material having at least each one layer of blue-sensitive layer, green-sensitive layer and red-sensitive layer on a support, wherein;

Light-sensitive silver halide color photographic material

A photographic material comprising at least one blue sensitive silver halide emulsion layer is disclosed. The silver density of the emulsion layer is not less than 4.0.times.10.sup.-1 g/cm.sup.3 and the dry thickness of the layer is not more than 4.0 .mu.m. A core/shell type silver halide emulsion and a high-speed reaction type scavenger for the oxidation products of a developing agent are preferably used for the emulsion layer. The photographic material has a high sensitivity and provides an image having a superior sharpness and resolution.

Silver halide photographic material with a specified silver density and

Disclosed is a light-sensitive silver halide photographic material comprising at least one layer of green-sensitive silver halide emulsion layer (GH), at least one layer of red-sensitive silver halide emulsion layer (RH) and a plural number of blue-sensitive silver halide emulsion layers with different sensitivities, provided on a support, which is characterized in that one of the said plural number of blue-sensitive silver halide emulsion layers is provided as a silver halide emulsion layer (BH) positioned at the farthest side from the support, at least one layer GH and at least one layer RH are provided between the layer BH and a blue-sensitive silver halide emulsion layer lower in sensitivity than the layer BH, and further fine grains of silver halide are contained in at least one of the said blue-sensitive emulsion layer of lower sensitivity and a layer adjacent thereto. The fine grains of silver halide may have a blue-sensitive sensitizing dye adsorbed on the surfaces thereof.

Growing community of inventors

Hino, Japan

Yoshitaka Yamada