1sane-coolscan3(5)        SANE Scanner Access Now Easy        sane-coolscan3(5)
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NAME

6       sane-coolscan3 - SANE backend for Nikon Coolscan film scanners
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DESCRIPTION

9       The  sane-coolscan3 library implements a SANE (Scanner Access Now Easy)
10       backend that provides access to Nikon  Coolscan  film  scanners.   Some
11       functions  of  this backend should be considered beta-quality software.
12       Most functions have been stable for a long  time,  but  of  course  new
13       development  can not and will not function properly from the very first
14       day.
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17       At present, the following scanners are known to work with this backend:
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19              Model:                       Connection Type
20              ---------------------------  -------------------
21              LS-30 (Coolscan III)         SCSI
22              LS-40 ED (Coolscan IV)       USB
23              LS-50 ED (Coolscan V)        USB
24              LS-2000                      SCSI
25              LS-4000 ED                   IEEE 1394
26              LS-8000 ED                   IEEE 1394
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28       Please send mail to sane-devel@alioth-lists.debian.net to  report  suc‐
29       cesses or failures.
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OPTIONS

33       The options the backend supports can either be selected through command
34       line options to programs like scanimage  or  through  GUI  elements  in
35       xscanimage or xsane.
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37       Valid command line options and their syntax can be listed by using
38              scanimage --help -d coolscan3:<interface>:<device>
39       where  <interface>  and  <device> specify the device in question, as in
40       the configuration file (see next section). The  -d  parameter  and  its
41       argument  can  be  omitted  to  obtain information on the first scanner
42       identified. Use the command
43              scanimage -L
44       to list all devices recognized by your SANE installation.
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46       The options should be fully described by the  description  or  tooltips
47       given  by frontend. Here is a description of some of the most important
48       options, in the syntax with which they must be supplied to scanimage:
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50       --frame <n>
51              This option specifies which frame to operate on, if a  motorized
52              film  strip feeder or APS adapter are used. The frame number <n>
53              ranges from 1 to the number of frames available, which is sensed
54              each  time  the  backend  is  initialized (usually each time you
55              start the frontend).
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57       --subframe <x>
58              This option shifts the  scan  window  by  the  specified  amount
59              (default unit is mm).
60
61       --infrared=yes/no
62              If  set  to  "yes",  the scanner will read the infrared channel,
63              thus allowing defect removal in software. The infrared image  is
64              read  during a second scan, with no options altered. The backend
65              must not be restarted between the scans.  If you use  scanimage,
66              perform  a batch scan with batch-count=2 to obtain the IR infor‐
67              mation.
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69       --depth <n>
70              Here <n> can either be 8 or the maximum number of bits supported
71              by  the scanner (10, 12, or 14). It specifies whether or not the
72              scanner reduces the scanned data to 8 bits before sending it  to
73              the backend. If 8 bits are used, some information and thus image
74              quality is lost, but the amount of data is smaller  compared  to
75              higher  depths.  Also,  many  imaging programs and image formats
76              cannot handle depths greater than 8 bits.
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78       --autofocus
79              Perform autofocus operation. Unless otherwise specified  by  the
80              other options ( --focus-on-centre and friends), focusing is per‐
81              formed on the centre of the selected scan area.
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83       --ae-wb
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85       --ae   Perform a pre-scan to calculate exposure  values  automatically.
86              --ae-wb  will maintain the white balance, while --ae will adjust
87              each channel separately.
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89       --exposure
90              Multiply all exposure times with this value. This  allows  expo‐
91              sure correction without modifying white balance.
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93       --load Load the next slide when using the slide loader.
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95       --eject
96              Eject  the  film  strip  or  mounted  slide when using the slide
97              loader.
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99       --reset
100              Reset scanner. The scanner will perform the same action as  when
101              power  is  turned on: it will eject the film strip and calibrate
102              itself. Use this whenever the scanner refuses  to  load  a  film
103              strip properly, as a result of which --eject does not work.
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CONFIGURATION FILE

107       The   configuration   file   /etc/sane.d/coolscan3.conf  specifies  the
108       device(s) that the backend will use. Owing to the nature  of  the  sup‐
109       ported  connection types SCSI, USB, and IEEE 1394, the default configu‐
110       ration file supplied with the SANE  distribution  should  work  without
111       being edited.
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113       Each  line  in the configuration file is either of the following, where
114       all entries are case-sensitive:
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116       blank or starting with a '#' character
117              These lines are ignored, thus '#' can be used  to  include  com‐
118              ments.
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120       containing only the word "auto"
121              This  instructs  the  backend to probe for a scanner by scanning
122              the buses for devices with know identifiers. This is the  action
123              taken when no configuration file is present.
124
125       a line of the form <interface>:<device>
126              Here  <interface> can be one of "scsi" or "usb", and <device> is
127              the device file of the scanner. Note that IEEE 1394 devices  are
128              handled  by the SBP-2 module in the kernel and appear to SANE as
129              SCSI devices.
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FILES

133       /usr/lib64/sane/libsane-coolscan3.a
134              The static library implementing this backend.
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136       /usr/lib64/sane/libsane-coolscan3.so
137              The shared library implementing this backend (present on systems
138              that support dynamic loading).
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140       /etc/sane.d/coolscan3.conf
141              Configuration  file for this backend, read each time the backend
142              is initialized.
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ENVIRONMENT

146       SANE_DEBUG_COOLSCAN3
147              If the library was compiled with  debug  support  enabled,  this
148              environment  variable controls the debug level for this backend.
149              E.g., a value of 128 requests all debug output  to  be  printed.
150              Smaller levels reduce verbosity.
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SEE ALSO

154       sane-scsi(5), sane-usb(5), scanimage(1), xscanimage(1), xsane(1)
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BUGS

158       Currently,  the  SANE  protocol  does  not allow automatically updating
159       options whenever the hardware changes. Thus the number of  choices  for
160       the  --frame option will be fixed when the backend is initialized (usu‐
161       ally when the user runs the frontend). In particular, if  there  is  no
162       film  strip in the automatic film strip feeder when the backend is ini‐
163       tialized, the frame option will not appear at all. Also, restarting the
164       frontend after swapping film adapters is strongly recommended.
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166       Linux  kernels  prior to 2.4.19 had a patch that truncated INQUIRY data
167       from IEEE 1394 scanners to 36 bytes, discarding vital information about
168       the  scanner.  The  IEEE 1394 models therefore only work with 2.4.19 or
169       later.
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171       No real bugs currently known, please report any to the SANE developers'
172       list.
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AUTHORS

176       coolscan3  written by A. Zummo (a.zummo@towertech.it), based heavily on
177       coolscan2 written by András Major (andras@users.sourceforge.net).
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181                                  11 Jul 2008                sane-coolscan3(5)
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