#multicontraste

[webionaire]

Split Grade Printing

from patent multiple filter, multicontrast printing. Split Grade was the first way the variable contrast was printed. Commercial printing made use of special two filter timers.

[art-now-france]

"Shadow Portrait ~ Chiswick House" (1979), Ed Buziak

A “shadow self-portrait” made with, and including in the composition, a Hasselblad SWC Super-Wide camera in the grounds of Chiswick House, a well-known Palladian mansion in south-west London. This image was hand-printed on Agfa Multicontrast Classic III fiber paper and selenium-toned for archival longevity. The image area is 23 x 23 cms on 29 x 32 cms paper, and is signed and dated in ink just outside the image area. This image has only been printed five times at this size - the original being auctioned at Christie’s South Kensington, London, auction house; “Sale of 19th and 20th Century Photographs” on 26th March 1981 (Sale MPH/Lacock 2603, Lot No.40 / Sold). Two others are in collections in the USA, and two remain for sale here.

https://www.saatchiart.com/art/Photography-Shadow-Portrait-Chiswick-House-1979/395193/1471733/view

[harvard-art-museums-photography]

Before the show, Tunbridge, Vermont, Susan Meiselas, 1974, printed 2008, Harvard Art Museums: Photographs

Harvard Art Museums/Fogg Museum, Richard and Ronay Menschel Fund for the Acquisition of Photographs © Susan Meiselas / Magnum Size: 25.2 x 37.1 cm (9 15/16 x 14 5/8 in.) sheet: 29.5 x 41.5 cm (11 5/8 x 16 5/16 in.) Medium: Fiber based gelatin silver print on Ilford Warm Tone Multicontrast glossy paper

https://www.harvardartmuseums.org/collections/object/332453

[biotechworld]

Simultaneous multicontrast OR-PAM from single laser source

Simultaneous multicontrast OR-PAM from single laser source

Optical-resolution photoacoustic microscopy innovation enables simultaneous multicontrast imaging with shorter imaging time and improved accuracy Credit: Wang, et al. Optical-resolution photoacoustic microscopy (OR-PAM), a new hybrid imaging technique, allows us to listen to the sound of light and see the color of biological tissue itself. It can be used for live, multicontrast functional…

[pjnicklas5]

11 - Norma Kamali @ TMA by LANCEPHOTO frame No.11 - Gelatin Silver, Caffenol Print Relationship of mannequins at Norma Kamali exhibition at Tampa Museum of Art. CAMERA: Nikon F100 LENS: Nikon Series E 50mm ƒ1.8 FILM: Eastman Double-X 5222 (expired) 2008 DATE SHOT: 8/12/16 FILM DEVELOPMENT: Labeauratoire's Caffenol Concoction 16 min. - 20°c PAPER: AGFA Multicontrast High Speed MC 310 RC PRINT DEVELOPMENT: Labeauratoire's Caffenol Concoction Printed in the Morean Arts Center Darkroom SCANNER: Epson V700 https://flic.kr/p/QazAuc

[cv3-photo]

monter son labo-photo chez soi

si vous vouliez continuer à faire des photos avec votre sténopé, plusieurs options s’offrent à vous: - se servir du labo de l’ecole. Je vais voir avec la direction comment faire. Il vous faudra surement acheter votre papier. Ilford, Foma, peu importe, tant que vous prenez du papier RC multicontraste. C’est à dire que la chimie est sur une feuille de plastique,  et que vous pouvez varier le contraste en fonction des filtres. c’est le plus commun aujourd’hui.

- faire un labo chez vous. c’est bien plus facile que ça en a l’air. vous avez besoin: -d’une pièce ou vous pouvez faire le noir (salle de bain, toilettes) et d’une lampe rouge de labo. un phare de vélo rouge peut dépanner pour faire la lumière rouge. une planche sur la baignoire, et vous voila prêt à installer votre labo!
 - de 3 bacs ou de cuvettes au format de votre papier. les stenopes dont nous nous servions prenaient du 13x18. Ebay, le bon coin, ou les magasins de matériel photo et même des tupperware peuvent convenir,il faut que ce soit un peu plus grand que le format de votre papier. 3 bacs pour Révélateur, fixateur et rinçage. Le bain d’arrêt n’est pas indispensable, mais protege le fixateur. Vu le débit en cours de photo, c’est important à l’ecole, moins chez vous. - des pinces, l’une pour le révélateur, l���autre pour le fixateur. - de la chimie: Révélateur papier, fixateur. vous pouvez en trouver chez https://www.photostock.fr/index.cfm (porte de la villette.) http://selsdargent.com/ http://labo-argentique.com/ prophot, Bd Beaumarchais à Paris

- d’une lampe de bureau et une plaque de verre pour faire les positifs. la lampe de bureau devra être à une hauteur fixe et ne pas tomber pendant que vous exposez votre papier. - de pinces à linges pour faire sécher votre papier. et un petit coup de sèche-cheveu froid pour que ça sèche plus vite.

mais vous pouvez aussi choisir un labo photo complet sur le bon coin, souvent vendu avec un agrandisseur, la lumière rouge, les bacs, les pinces, les filtres… un excellent moyen de s’équiper moins cher. J’en vois sur LBC à 40€ d’autres à 100€. quelques marques d’agrandisseur pour vous aider dans vos recherches: Durst, LPL, meopta, ahel, omega. je peux vous conseiller si besoin.

[itsmedicinesfakianakis]

Evaluation of carotid atherosclerotic plaque surface characteristics utilizing simultaneous noncontrast angiography and intraplaque hemorrhage (SNAP) technique

Evaluation of carotid atherosclerotic plaque surface characteristics utilizing simultaneous noncontrast angiography and intraplaque hemorrhage (SNAP) technique:

Purpose

To evaluate the feasibility of the Simultaneous Noncontrast Angiography and intraPlaque hemorrhage (SNAP) technique in identification of carotid plaque surface characteristics compared with the conventional multicontrast vessel wall imaging protocol.

Materials and Methods

Thirty symptomatic patients with carotid plaque were recruited and underwent carotid artery magnetic resonance imaging (MRI) (3.0T) using a conventional multicontrast protocol and SNAP sequence. As an intrinsic multicontrast sequence, SNAP could generate a gray blood reference (Ref) image set, a black blood corrected real (CR) image set, and a bright blood MR angiography (MRA) image set. A bright blood SNAP Ref2 image was implemented by combining Ref and MRA images for facilitating plaque surface characteristics evaluation. The presence/absence of calcification (CA), juxtaluminal calcification (JCA), and ulceration was assessed. The agreement between SNAP and multicontrast vessel wall protocol in identifying CA, JCA, and ulceration was analyzed using Cohen's kappa analysis. The interreader and intrareader reproducibility of SNAP imaging in identifying plaque surface characteristics was also assessed.

Results

Good to excellent agreement was found between SNAP and conventional multicontrast protocol in identifying CA (κ = 0.74, 95% confidence interval [CI]: 0.54–0.93), JCA (κ = 0.81, 95% CI: 0.66–0.97), and ulceration (κ = 0.82, 95% CI: 0.65–0.99). In addition, excellent intrareader and interreader reproducibility was found for SNAP imaging in identification of CA, JCA, and ulceration.

Conclusion

SNAP imaging showed excellent agreement with multicontrast imaging and high reproducibility in identification of both JCA and ulceration, suggesting that SNAP imaging may be a time-efficient, alternative tool in identification of plaque surface characteristics in carotid arteries.

Level of Evidence: 4

Technical Efficacy: Stage 1

J. Magn. Reson. Imaging 2017.

from OtoRhinoLaryngology - Alexandros G. Sfakianakis via Alexandros G.Sfakianakis on Inoreader http://ift.tt/2f6GZ03

[gamafotografia]

Papel Ilford MGIV FB brillante 8x10" 25 H en Gamafotografia. #Ilford #multicontraste #fibra #quimicos #xalapa

[harvard-art-museums-photography]

Playground of Crockett Elementary School, where I attended grades 1-7, Frank Gohlke, 1984, printed 2008, Harvard Art Museums: Photographs

Harvard Art Museums/Fogg Museum, Richard and Ronay Menschel Fund for the Acquisition of Photographs © Frank Gohlke 1984 Size: 38.1 x 47.5 cm (15 x 18 11/16 in.) sheet: 40.5 x 49.9 cm (15 15/16 x 19 5/8 in.) Medium: Fiber based gelatin silver print on Ilford Warm Tone Multicontrast glossy paper

https://www.harvardartmuseums.org/collections/object/332451

[art-now-france]

"Loco Valve Gear" (1981), Ed Buziak

This hand-printed photograph is a detail of the valve gear of a 100-tonne oily, steel machine, namely the Southern Railway Maunsell U-Class 2-6-0 Mogul No.1618. The 5x4 inch negative was made in 1981 on the Bluebell Railway in Sussex, England with a Japanese Wista large-format camera... the last prints being processed in 1999 before the negative was retired. I have six selenium-toned archival prints remaining from that final edition of twelve, the image measuring 30 x 24 cms on 36 x 29 cms Agfa Multicontrast Classic paper, all signed and dated in ink just outside the image area.

https://www.saatchiart.com/art/Photography-Loco-Valve-Gear-1981/395193/1472085/view