Zeiss SCAI Film Scanner
Testing the scanner
YOU MUST BE TRAINED
before using the scanner
General Guidelines
Always use gloves
Always have something between the glass
to prevent scratching
Never use compressed air sources (which
inevitably contain water or oil)
use brushes to remove dust
or clean glass while wet with glass
cleaner - experts only
Transfer and Delete your images from the
local disk immediately after scanning
they won't be there when you
return
Turn off scanner when no foreseable use later that day (to preserve
lamp hours)
Turning on scanner:
login as phodis user (maybe already logged in)
connect to PC that controls the scanner (maybe already connected)
open terminal window
type: cu -l /dev/ttyd2
observe response: Connected
turn on power to scanner
wait while scanner initializes and calibrates itself
watch progress in terminal window where PC connected:
SCAI Rev. 3.20
*** 31.03.1999 ***
Copyright (C) 1994, 1999 by Carl Zeiss Oberkochen
C:\SCAI\REV03.20\SCAI320.EXE
System started at:
Wed Nov 03 23:03:50 1999
. . . . . . . . .
. . . . . . . . .
No. of gain-values cut to 2047: B 0 | G
0 | R 0
No. of gain-values cut to 0: B
0 | G 0 | R 0
No. of offs-values cut to 2047: B 0 | G
0 | R 0
No. of offs-values cut to -2048: B 0 | G
0 | R 0
Write back old scanner parameters.
ESC R 112 112
ESC C 17
ESC D 8
ESC V 100
ESC T 19
ESC b r
ESC b g
ESC b b
---------- Initialization completed ----------
gain-values and offs-values should all read zero as above
start phodis software (dropdown menu from Toolchest or type psc)
Scanner should be "Connected
open your "project" by choosing Project -> Open
Setup Prescan:
Choose Setup -> Scan
Specify large Density range (0.01 - 2.0) for initial prescan, will refine
this later on
Settings shown below should be generally correct for most people:
Resolution
Linearity
Polarity
Color Mode
Color Correction
CCD Normalization (every scan),
Photo Orientation
Press Ok
choose Scan -> Prescan
Adjust box about where you expect the negative to be and Start
Press Adjust and move box to include image densities of interest.
Keep in mind that minimum OD range is 0.3 (ODmax - ODmin) and that ODmin
seems not to work if > 1.1.
Press Adjust density to find out what OD values correspond to your
box. Press Reset if unsatisfied.
Press Close to have current density limits entered into Scan Setup (which
you can change later)
Use the prescan image to specify the boxed area you actually want to scan
at high resolution (you can type exact number of mm in X and Y if desirable
to have a defined box size)
Press close to return to main menu
Scanning the Image
Go to Scan -> Start
Go to Scan Settings Setup and fiddle ODmin and ODmax if necessary.
Also make sure Color Correction is not functioning to truncate densities
(should be 0 as min and 255 as max) and refer to above Scan Settings for
everything else
Go to Image settings Setup and change filename and make sure tld format
is specified.
Now Start scan (can watch terminal window to be sure normalization proceeds
normally)
File Conversion:
To convert directly from TLD to MRC format:
in terminal window, run program tld2mrc or tld2mrc_bs (for
byte-swapping)
this program must be run on klug and then ftp file elsewhere
To convert to TIFF and later to MRC format:
choose Tools -> Convert Image
Specify filenames and click on Conversion to set TIFF options
to be "scanlined"
then ftp tiff tile elsewhere and use tif2mrc.exe to convert
Turning off the scanner:
replace negative with white protective sheet (to prevent glass-on-glass
scratching)
exit phodis software
turn off power switch
leave the scanner connected and leave phodis user logged on
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