Auteur: Nicoperno
Date: 13-12-2006 13:01
Ben le miroir c'est pas très pratique quand même.
Il y a eu un fil à ce sujet il y a longtemps, on a cité un article de glennview que j'ai copié (mais je n'ai pas retrouvé l'adresse).
Intéressant notamment sur la sensibilité aux UV.
Nicolas
SHOOTING CIBACHROME*-IN-CAMERA
Why shoot Cibachrome-in-Camera?
. . Cibachrome is gorgeous
. . Cibachrome is archival
. . Cibachrome is easy to process
. . . . Processing equipment may be simple
. . . . Processing temperature range is relatively wide
. . Cibachrome is inexpensive
. . . . Shot-in-camera, no film is needed
. . . . Processing equipment may be inexpensive
. . Results may be had relatively quickly
. . . . A finished Cibachrome may be had in under 15 minutes
. . . . Near Polaroid speed with Cibachrome archival quality
. . Every Cibachrome is an original, one-of-a-kind
How to shoot Cibachrome-in-camera
. . Use a sheet film camera, view, press, or process camera
. . . . Paper sizes available: 4X5, 8X10, 11X14, 16X20
. . . . Can be cut to size
. . . . Regular or low contrast paper is available
. . . . 8X10 clear Cibachrome film is also available
. . . . Filmholders, Grafmatics, and vacuum backs all work well
. . Prints will be reversed from right to left
. . . . Clear Cibachrome film will not be reversed
. . . . Portraits would be like looking into the mirror
. . . . Image reversal is seldom noticeable in natural subjects
. . . . Reversed lettering is most noticeable
. . . . 45 degree mirror or prism in front of lens makes image right reading
. . Cibachrome is sensitive to Ultraviolet light
. . . . UV light will give image a blue cast
. . . . Kodak 2E filter removes all UV light
. . . . . . Available in gel in all sizes
. . . . . . Use Color Correction filter only
. . . . . . . . Color Correction filters are optically clear
. . . . . . . . Color printing filters are not optically clear
. . . . Images can be made using only UV light
. . . . . . See what the bees see!
. . . . . . Minerals, flowers, etc. may look spectacular
. . . . . . Use narrow band UV only filter to screen out non-UV light
. . . . . . Use UV light as only light source
. . Cibachrome is intended for use with tungsten light
. . . . Being a darkroom product it is balanced for tungsten light
. . . . 3200 Tungsten light requires only UV filtration, if that
. . . . Use Kodak 2E Color Correction filter to remove UV light
. . Filtration required for ordinary results in Daylight
. . . . Use Kodak 2E Color Correction filter
. . . . Use Kodak 85B Color Correction filter
. . . . Daylight varies in color temperature
. . . . . . Other filtration may be required
. . . . . . Use only Color Correction filters
. . . . . . Filter to suit conditions or your taste
. . . . . . Ilford will give you reciprocity chart
. . Filtration required for ordinary results with Strobe
. . . . Use Kodak 2E Color Correction filter, if necessary
. . . . Use Kodak 85B Color Correction filter
. . ASA/ISO film speed of Cibachrome
. . . . about 3.0 with no filtration
. . . . about 1.0 with 85B
. . . . Clear film is faster
. . . . 2E UV filter requires no exposure increase
Processing
. . There is much literature available on the subject
. . llford Cibachrome literature is hard to beat
. . llford Cibachrome equipment is hard to beat
. . Cibachrome does not like ribs inside processing tubes
. . Cibachrome likes lots of agitation
. . Cibachrome likes fast drying
. . A heated hair dryer works well for small prints
. . Cibachrome can often be processed in the field
The Finished Print
. . Should be superior to a C-print
. . May be Cibachrome print made from transparency
. . . . Cibachrome-in-camera tends to be less contrasty
. . . . Depends upon contrast of original scene, exposure time
. . . . . . Keep exposure time to a minimum for best results
. . . . . . Reciprocity failure with long exposure results in lower contrast
. . Glossy Cibachrome should have a metallic paint look
. . Making duplicate prints
. . . . Shoot original on Cibachrome film
. . . . Shoot more than one original
. . . . Copy on Cibachrome, making copy right-reading
. . . . Scan it on your computer scanner
. . . . . . Shoot on large format film for high quality scans on any scanner
. . . . . . Flip it so it will read right and adjust as necessary in your image editor
*Cibachrome is now marketed as Ilfochrome. I prefer Cibachrome. Cibachrome came to life as Cibachrome. Cibachrome had a great following. Ilfochrome is no different. Why change the name. I call it Cibachrome. Other products will work SHOT-IN-CAMERA. Although I have not personally used it, I understand that Fuji makes a positive paper that may work as well as Cibachrome. Most likely the outline above will apply to Fuji positive paper as well.
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