PCjs Machines
Home of the original IBM PC emulator for browsers.
PC-SIG Diskette Library (Disk #1313)
[PCjs Machine "ibm5170"]
Waiting for machine "ibm5170" to load....
Information about “COMPUTER DARKROOM AND PRO LIBRARIAN”
For those who develop their own pictures, calculating exposure times
that are dependent on many factors can involve tedious (and expensive)
guesswork. COMPUTER DARKROOM calculates new settings for you quickly
and accurately.
Once you have one acceptable exposure with test prints, this program
gives you the proper exposure times for any changes you decide to make
in paper speed, contrast, magnification, or filter factors for all black
and white prints, color prints, or color slides for f/stop values from
f/2 to f/32.
PROFESSIONAL LIBRARIAN is an information-retrieval system for storing
citations of articles and books in your own library.
Add, delete, edit, sort, and search citations in your database. Each
record includes the author, date, title, citation, number, four subject
categories, and a short description. A listing of the database can be
output to the screen, a file, or the printer.
CDR.TXT
C O M P U T E R D A R K R O O M
Version 1.0
R E F E R E N C E M A N U A L
Benjamin M. Kacenas
1414 Moorgate Dr.
Knoxville, TN 37922
Copyright (c) 1988 Benjamin Kacenas
All Rights Reserved
COMPUTER DARKROOM 1.0
This manual has been revised to reflect the current state of
COMPUTER DARKROOM as of version 1.0.
The specifications contained herein are subject to change without
notice.
This document is Copyright (c) 1988, Benjamin Kacenas.
The computer systems mentioned in the manual are trademarks of
specific hardware manufacturers.
Printed in the United States of America.
i
COMPUTER DARKROOM 1.0
USAGE AGREEMENT
All versions of COMPUTER DARKROOM, including version 1.0, are not
public domain software, nor are they free software.
COMPUTER DARKROOM is Copyright (c) 1988; by Benjamin M. Kacenas.
This software may be copied or transmitted free without
restriction for evaluation purposes but not sold or modified in
any way. A charge of no greater then $10.00 my be requested for
copies of this program to cover the labor and media required for
this purpose.
No user may modify COMPUTER DARKROOM in any way, including but
not limited to decompiling, disassembling or otherwise reverse
engineering the program.
ii
COMPUTER DARKROOM 1.0
WARRANTY
The author makes no warranty of any kind, express or implied,
including without limitations, any warranties of merchantability
and/or fitness for a particular purpose. The author shall not be
liable for any damages, whether direct, indirect, special or
consequential arising from a failure of this program to operate
in the manner desired by the user. The author shall not be liable
for any damage to data or property which may be caused directly
or indirectly by use of this program.
*****************************************************************
In no event will the author be liable to the user for any
damages, including any lost profits, lost savings or other
incidental or consequential damages arising out of the use or
inability to use the program, or for any claim by any other
party.
*****************************************************************
iii
COMPUTER DARKROOM 1.0
C O N T E N T S
USAGE AGREEMENT . . . . . . . . . . . . . . . . . . . . . . . ii
WARRANTY . . . . . . . . . . . . . . . . . . . . . . . . . . iii
1.0 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . 1
2.0 GENERAL OPERATION . . . . . . . . . . . . . . . . . . . . 2
3.0 BLACK AND WHITE PRINTING . . . . . . . . . . . . . . . . 4
3.1 Negative Identification: . . . . . . . . . . . . 4
3.2 Date: . . . . . . . . . . . . . . . . . . . . . 4
3.3 Paper Type: . . . . . . . . . . . . . . . . . . 5
3.4 Exposure Time: . . . . . . . . . . . . . . . . . 5
3.5 Lens Opening: . . . . . . . . . . . . . . . . . 6
3.6 Negative Size: . . . . . . . . . . . . . . . . . 6
3.7 Projection Size: . . . . . . . . . . . . . . . . 6
3.8 Magnification Factor: . . . . . . . . . . . . . 7
3.9 Print This Specification: . . . . . . . . . . . 7
3.10 Return To Main Menu: . . . . . . . . . . . . . 7
3.11 Clear The Screen: . . . . . . . . . . . . . . . 8
4.0 COLOR NEGATIVE PRINTING . . . . . . . . . . . . . . . . . 9
4.1 Negative Identification: . . . . . . . . . . . . 9
4.2 Date: . . . . . . . . . . . . . . . . . . . . . 9
4.3 Exposure Time: . . . . . . . . . . . . . . . . . 9
4.4 Lens Opening: . . . . . . . . . . . . . . . . . 9
4.5 Negative Size: . . . . . . . . . . . . . . . . . 10
4.6 Projection Size: . . . . . . . . . . . . . . . . 10
4.7 Magnification Factor: . . . . . . . . . . . . . 10
4.8 Enter Starting Filter Pack: . . . . . . . . . . 10
4.9 Modify Filter Pack: . . . . . . . . . . . . . . 11
4.10 Print This Specification: . . . . . . . . . . . 11
4.11 Clear The Screen: . . . . . . . . . . . . . . . 11
4.12 Return to Main Menu: . . . . . . . . . . . . . 11
5.0 COLOR SLIDE PRINTING . . . . . . . . . . . . . . . . . . 12
5.1 Slide Identification: . . . . . . . . . . . . . 12
5.2 Date: . . . . . . . . . . . . . . . . . . . . . 12
5.3 Exposure Time: . . . . . . . . . . . . . . . . . 12
5.4 Lens Opening: . . . . . . . . . . . . . . . . . 12
5.5 Slide Size: . . . . . . . . . . . . . . . . . . 13
5.6 Projection Size: . . . . . . . . . . . . . . . . 13
iv
COMPUTER DARKROOM 1.0
5.7 Magnification Factor: . . . . . . . . . . . . . 13
5.8 Enter Starting Filter Pack: . . . . . . . . . . 13
5.9 Modify Filter Pack: . . . . . . . . . . . . . . 13
5.10 Print This Specification: . . . . . . . . . . . 13
5.11 Clear Screen: . . . . . . . . . . . . . . . . . 14
5.12 Return to Main Menu: . . . . . . . . . . . . . 14
6.0 THE SHAREWARE CONCEPT . . . . . . . . . . . . . . . . . . 15
7.0 ORDER FORM: . . . . . . . . . . . . . . . . . . . . . . . 15
v
COMPUTER DARKROOM 1.0
1.0 INTRODUCTION
The program COMPUTER DARKROOM was written for the
purpose of reducing the work involved in determining the proper
exposure for photographic printing. Three forms of photographic
printing are addressed in three major functions within the
program. The first major function is used for the printing of
black and white negatives using many forms of photographic paper.
The second major function covers the printing of color negatives
onto color reversal media. The third and last major function is
provided for those who deal with the printing of color slides
onto Ilford Cibachrome material.
The features that are found in the program COMPUTER
DARKROOM are listed below.
* Computation of exposure times based on the speed of seventeen
popular black and white printing papers.
* Computation of exposure times based on the contrast grades of
black and white printing papers and filter factors when using
variable contrast papers.
* Computation of exposure times based on magnification ratio of
black and white or color printing media.
* Continues display of exposure times for f/stops ranging from
f/2 to f/32.
* Computation of exposure times based on color correcting filter
factors for color printing.
* Print out of specifications for reproduction of a previously
printed slide or negative.
page 1
COMPUTER DARKROOM 1.0
2.0 GENERAL OPERATION
After the program is loaded, with the command from the
operating system prompt "cdr", the main menu is displayed. This
menu allows four options. BLACK AND WHITE PRINTING, COLOR
NEGATIVE PRINTING, COLOR SLIDE PRINTING, and RETURN TO DOS
SYSTEM. The up and down arrows found on the keyboard will
sequence through these options. When the major function that you
require is high-lighted or in a different color press the "ENTER"
key. This will transfer operation over to this function.
The basic procedure for using COMPUTER DARKROOM is as
follows. When you have made an acceptable print or know what is
needed to reach an acceptable print, by a test print operation,
this information is input to the program and it will calculate
the proper exposure for the modifications that you will enter.
Once you have reached what you feel is close to the final print
the specifications can be entered. Once the program has the
starting point for exposure it will calculate the new exposure to
compensate for changes in paper type, contrast grade,
magnification and color filter density. The calculations for each
major function will automatically compensate for reciprocity-
failure for the specific media and paper type.
As an example for the function Black and White Printing.
Suppose that you have completed a test print using Kodak
Kodabromide contrast grade 3 paper at f/8 and 20 sec. with a
magnification factor of 8. The program, once it has been given
this information, will display the exposure times for all f/stops
from 2 to 32. Now you wish to print this same negative at a
magnification factor of 11 on Ilford Multigrade II paper with a
Kodak Polycontrast filter of 2 1/2. When you enter these new
specifications into the program all the new exposure values will
be calculated and displayed.
As an example for the functions Color Negative and Color
Slide Printing. Suppose that you have achieved a test print but
the color balance is not quite what you need. You would enter the
information that you have for the test print as a starting point.
Now you have determined that an extra Magenta filter of 10 is
needed. When this information is entered into the program all
exposure times will be calculated for this modified filter pack.
This function will also calculate exposure times based on
magnification changes.
page 2
COMPUTER DARKROOM 1.0
The term magnification factor when used for COMPUTER
DARKROOM refers to the ratio of the short side of the negative or
slide in relation to the short side of the projected image. This
information can be given to the program in two ways. The first is
to enter the magnification factor directly using the three major
function specification input procedures described later. The
second method is to enter the dimensions of the short sides of
the negative or slide and the projected image measured on the
enlarger baseboard. When these dimensions are entered the
magnification factor will be calculated automatically and
displayed. If the dimensions have been entered and the
magnification factor is modified the new projected image
dimension will be calculated and displayed by the program. It
should be noted that this magnification factor does not have any
relationship to the print size because the dimension that is
required or calculated is not the short side dimension of the
print but rather the short side dimension of the projected image.
Each major function and it's capabilities will be
discussed in detail in the following sections.
page 3
COMPUTER DARKROOM 1.0
3.0 BLACK AND WHITE PRINTING
This function performs most of the exposure calculations
that are necessary when printing from black and white negatives
onto black and white printing papers.
When you first enter this function you will notice the
screen will display the various specifications that you will be
required to give the program. These are numbered from 1 to 12
along the left side of the display. You will also notice that on
the right of the screen is an area called Exposure Time. This
area is where the program displays the calculated exposure time
for f/stop from f/2 to f/32. At this time all values are set to 0
because the program has not been given the information necessary
to do any exposure calculations. At the very bottom of the screen
are the instruction lines. This area is provided to help you
understand each step as you progress through the specification
input portion of the use of COMPUTER DARKROOM.
3.1 Negative Identification:
Specification 1. is labeled Negative Identification.
When 1. is selected and "ENTER" is pressed the instruction line
will ask for the identification for this negative. If you have
cataloged your negatives or have them in some order that each can
be separately identified you may type this in and press return.
Up to 20 characters may be entered and any displayable characters
may be used. When you have completed this input the screen will
display this identifier at the appropriate location.
This specification may be changed at any time or omitted
completely with out affecting the ability of the program to
perform it's calculations.
3.2 Date:
Specification 2. is labeled Date. As you can see, there
is a date displayed already. The program has asked the system for
the current date and used this response for this specification.
If your computer has the current date available from a battery
backed up clock calender or you have entered the current date at
power up time this will be correct. If this date is not correct
then you can enter the proper date by selecting 2. and pressing
"ENTER". The program will ask for the month, day and year in
page 4
COMPUTER DARKROOM 1.0
sequence. Each entry is tested except the year to insure that the
month and day are legal. Month can be from 1 to 12 and the day
can be from 1 to 31. After the input is complete the screen will
display the entered date as you have specified.
3.3 Paper Type:
Specification 3. is labeled Paper Type. During the
printing process, if you wish to change the paper that you are
using or contrast grade of the paper of contrast filter you will
need to enter this information via this Paper Type function. When
3. is entered the screen will display 16 popular black and white
papers from three manufactures. You will be instructed by the
program to enter the appropriate number that represents the paper
that you are using. Depending on weather you have chosen a single
contrast type paper or a variable contrast type you will then be
asked to chose a contrast grade or contrast filter. The program
will not allow you to chose a filter type or contrast grade that
is not legal for the specific paper that you have selected.
The procedure for selecting the paper and contrast is
the same for all papers except Ilford Multigrade II. This paper
allows the use of three types of contrast filters. Therefore
extra information must be entered to chose the filter type. The
program will automatically proceed through this operation when
this selection is made.
When this information is first entered no calculation
will be performed on the exposure time because this is considered
the starting point and initial entry. Any subsequent entry to
this specification will force a calculation and display. The
calculation is based on the previous paper type and contrast
grade speed rating in relation to the new paper type and contrast
grade speed rating.
3.4 Exposure Time:
Specification 4. is labeled Exposure Time. When 4. is
entered the program will instruct you to enter the initial
exposure time that you feel has given an acceptable print. When
this specification is entered and there has been an entry made
for Lens Opening this function will force a calculation to the
exposure times displayed on the right of the screen. If this
specification is 0 then all calculated exposure times displayed
on the right of the screen will also be 0.
page 5
COMPUTER DARKROOM 1.0
This specification may be changed at any time during the
operation of this major function to set the exposure time to the
initial point for the exposure calculations.
The range of values that will be accepted by this
program for the exposure are from 1 sec. through 500 sec.
inclusive. Any values falling outside this range will not be
accepted.
3.5 Lens Opening:
Specification 5. is labeled Lens Opening. When 5. is
entered the program will instruct you to enter the lens opening
that has been used to produce your test print. If an exposure
time has already been entered this specification will force a
calculation of the exposure times displayed on the right of the
screen to reflect the new f/stop. If this specification is set to
zero then no calculation can be performed and the exposure times
displayed on the right of the screen will also be 0. Any Lens
opening from f/2 to f/32 may be used for input to this
specification and all calculations will be made accordingly.
There is no requirement for entering any of the standard
f/stops for the calculations to be accurate although only the
exposure times for the standard f/stops from 2 to 32 will be
displayed on the right of the screen. This input procedure will
allow values ranging from 2 through 32 inclusive. If values below
2 or above 32 are entered they will not be accepted.
3.6 Negative Size:
Specification 6. is labeled Negative Size. When 6. is
entered the program will instruct you to enter the negative size
(short side). This dimension can be measured form the negative
carrier used with your specific enlarger. The value for negative
size must be specified in inches in a range from 0 to 8 inches.
This range will allow any negative size up to 8 inches. This
value will never be calculated or changed by the program and is
used to calculate the magnification factor when the print size is
also entered.
3.7 Projection Size:
Specification 7. is labeled Projection Size. When 7. is
entered the program will instruct you to enter the dimension of
page 6
COMPUTER DARKROOM 1.0
the projection (short side). This dimension can be measured from
the projected image on the baseboard of the enlarger. Do not
enter the dimension of the print unless the print short side is
the same size as the projected image.
This value must be in the range of from 0 to 100 inches.
Any value entered outside this range will not be accepted by the
program. If the negative has been entered using specification 6.
the entry of this projection size will force the calculation of
the magnification factor for specification 8.. Each time this
value is changed the magnification factor will be calculated. If
the negative size and magnification factor are known to the
program it will calculate this specification automatically each
time the magnification factor is changed.
3.8 Magnification Factor:
Specification 8. is labeled Magnification Factor. When
8. is entered the program will instruct you to enter the
magnification factor. This value is the ratio of the negative
size (short side) to the projected image (short side).
This value must be in the range 0 to 100. If a value is
entered outside this range this entry will be ignored. If you
have entered the negative size as described earlier this entry
will force the program to calculate and display the projection
size. Any change to this value will cause the projection size to
be calculated.
3.9 Print This Specification:
Command 9. is labeled Print This Specification. When 9.
is entered the program will send the information that you have
entered or the values that have been calculated and displayed on
the left side of the screen to the printer. This option is for
the purpose of retaining a hard copy printout of the
specifications that were used to make each print. This allows you
to duplicate any print at a later date with minimum effort.
3.10 Return To Main Menu:
Command 10. is labeled Return To Main Menu. When 10. is
entered the program will transfer control to the Main Menu
routine as if you have just entered from DOS. The screen will
display the same three major functions that greeted you when you
first started COMPUTER DARKROOM.
page 7
COMPUTER DARKROOM 1.0
3.11 Clear The Screen:
Command 11. is labeled Clear The Screen. When 11. is
entered the program will blank the screen so that the
illumination will not interfere with the printing process. This
feature has been added for those who wish to have their computer
with them in their darkroom. After the screen has been cleared
any keystroke will instruct the program to display the
information that was entered or calculated without modification.
page 8
COMPUTER DARKROOM 1.0
4.0 COLOR NEGATIVE PRINTING
The purpose of this major function is to provide
calculated exposure times for color printing from color
negatives.
When this function is first entered by selecting the
COLOR NEGATIVE PRINTING displayed in the main menu the screen
will display twelve separate specifications or commands. By
choosing one of these you may enter the information required for
exposure calculations. As in black and white printing you will
notice the area to the right on the screen that displays the
exposure time for f/stops from 2 to 32. There is also an added
area in the center on the screen to display the filter values
that you will enter. This area is labeled Filter Pack.
We will now discuss each specification or command
individually.
4.1 Negative Identification:
This specification is provided for you to enter the
specific identification for the negative using the system of
cataloging that you have chosen. Refer to section 3.1 for a
complete explanation.
4.2 Date:
As discussed in section 3.2 this specification is for
the purpose of logging the date that you are making the print.
4.3 Exposure Time:
This specification is for the purpose of entering the
starting exposure time that you have found to be satisfactory for
this negative during the test print procedure. Refer to section
3.4 for further instructions.
4.4 Lens Opening:
This specification will also be derived from your test
print procedure and is required by the program as a starting
point from the exposure calculations. Refer to section 3.5 for a
further explanation.
page 9
COMPUTER DARKROOM 1.0
4.5 Negative Size:
This specification is entered and used if you wish to
change the print size or projection size for cropping during the
printing process. The negative size and projection size are
required information to the program if you change the enlarger
head height and wish the program to calculate the exposure times.
Refer to section 3.6 for a further explanation.
4.6 Projection Size:
As described in section 3.7 this specification is for
the purpose of determining the magnification factor from the
dimensions of the negative and projection. The negative size
specification and the projection size specification are not
required if you wish to enter the magnification factor directly.
4.7 Magnification Factor:
This specification may be entered directly from this
menu by selecting 7. or the program will calculate this value
from the information provided by specifications Negative Size and
Projection Size. Refer to section 3.8 for a more complete
description.
4.8 Enter Starting Filter Pack:
Specification 8. is labeled Enter Starting Filter Pack.
When 8. is entered the program will display the six possible
printing filters and ask you to pick the one that you wish to
enter. When you have chosen the filter type the program will ask
you to enter the filter value. This value may be from 0 to 100
but must be in increments of 5. Any entry outside this range or
not a multiple of 5 will be rejected.
When you have entered the specification for each filter
that you will be using selection 7. will return you to the
Negative Printing menu and display these filter values in the
center of the screen.
This specification has a different function then the
selection labeled Modify Filter Pack because this function does
not cause a calculation of the exposure times. Therefore this
entry is used by you to enter the starting filter pack values
that you have obtained from the test print procedure. You can
page 10
COMPUTER DARKROOM 1.0
also use this function for changing the filter values without the
program calculating a new exposure time.
4.9 Modify Filter Pack:
Specification 9. is labeled Modify Filter Pack. When 9.
is selected the program will display the same screen as described
above. The information is also entered using the procedure
described in the previous section.
The purpose of this entry function is different then the
Enter Starting Filter Pack in that when you leave this function a
new exposure time will be calculated based on the changes that
you have made to the filter values. When you return to the
negative printing menu if you have changed any filter value the
new exposure times will be based on the same printing density but
with the color shift obtained from these new filters.
4.10 Print This Specification:
This command is provided so that you may make a
permanent hard copy of the values used for this printing
operation. Refer to section 3.9 for a more complete description
of this command.
4.11 Clear the Screen:
As described completely in section 3.11 this command may
be used to blank the screen for use in the darkroom during
printing.
4.12 Return to Main Menu:
By selecting command 12. the program will return to the
main menu where you may continue with another printing operation
or return to the operating system prompt.
page 11
COMPUTER DARKROOM 1.0
5.0 COLOR SLIDE PRINTING
The purpose of this major function is to provide to the
photographer a convenient way to determine the exposure times
required for the printing of color slides. All calculations used
in this function are based on the characteristics associated with
the Ilford Cibachrome materials.
Once the exposure time is chosen by the test print
procedure then any change in magnification or filter density will
calculate the exposure times for these new specifications based
on the original.
The following sections will discuss each specification
and command in detail.
5.1 Slide Identification:
This specification, as described in section 3.1, is for
the purpose of entering your catalog identification for this
slide. When the Print This Specification command is used to
produce a hard copy this information will allow for future
reproduction by identifying this slide.
5.2 Date:
This specification is for the purpose of including the
date with the hard copy printout that may be cataloged with this
slide for future reproduction. Refer to section 3.2 for a further
discussion.
5.3 Exposure Time:
This specification is where the initial exposure is
entered after being obtained from the test print process. All
subsequent calculations are based from this starting point. Refer
to section 3.4 for a further explanation.
5.4 Lens Opening:
This specification is a required entry for the program
to use as a starting point for the calculations of exposure time.
Refer to section 3.5 for a more complete description of this
entry.
page 12
COMPUTER DARKROOM 1.0
5.5 Slide Size:
This specification is used by the program to calculate
the magnification factor, if entered. The slide size dimensions
are the same as the negative size dimensions explained in section
3.6.
5.6 Projection Size:
This specification is also used by the program to
calculate the magnification factor with relation to the slide
size specification. Refer to section 3.7 for a better description
of the value.
5.7 Magnification Factor:
This specification may be entered directly by selecting
number 7. or calculated by the program by the entry of the Slide
Size and Projection Size specifications. Refer to section 3.8 for
a better description of this function.
5.8 Enter Starting Filter Pack:
This selection performs a function that will lead the
user through a procedure to enter the starting filter pack for
slide printing. When the filter specifications are entered and
this function is concluded no exposure calculation is performed.
Refer to section 4.8 for a complete description.
5.9 Modify Filter Pack:
This specification entry procedure, as described in
detail in section 4.9, is used when calculation of the exposure
time is required for changes in the color filter values. Color
balance modifications to a print can be made quickly with the new
exposure value obtained from the program by entering filter
changes from this function.
5.10 Print This Specification:
This command function will provide a hard copy printout
containing the information entered or calculated for the color
slide printing major function. Refer to section 3.9 for a more
complete description.
page 13
COMPUTER DARKROOM 1.0
5.11 Clear the Screen:
This command will blank the screen, as described in
section 3.11 so that this program can be used by a computer
located within the darkroom. After this command is entered,
pressing any key will return the screen to the original color
slide printing display.
5.12 Return to Main Menu:
This command, as described for the other major
functions, is used to terminate the color slide printing
operation. When this command is selected control will return to
the main menu function and further work or an exit to DOS is
possible.
page 14
COMPUTER DARKROOM 1.0
6.0 THE SHAREWARE CONCEPT
COMPUTER DARKROOM is not public domain software nor is
it free software. This product is copyright by Benjamin M.
Kacenas and is marketed under the shareware concept.
The shareware concept is to provide to prospective
users, at no cost, a working copy of the program for evaluation
in the hopes that enough users will feel that the program is
worth the price that is requested. This marketing concept can
only work if users are willing to pay for worthwhile software.
This software may be copied or transmitted free without
restriction for evaluation purposes but not sold or modified in
any way. A charge of no greater then $10.00 my be requested for
copies of this program to cover the labor and media required for
this purpose.
The program COMPUTER DARKROOM may not be rented or
leased under any circumstances.
If you wish a registered and current copy of this
program that will include a printed manual as well as technical
support, this may be purchased for $25.00 from Benjamin M.
Kacenas. Please refer to the order form provided with this
manual.
page 15
COMPUTER DARKROOM 1.0
7.0 ORDER FORM
_________________________________________________________________
BENJAMIN M. KACENAS
1414 MOORGATE DR.
KNOXVILLE, TN 37922
ITEM QTY PRICE EACH PRICE EXTENDED
----------------- --- ---------- --------------
COMPUTER DARKROOM ___ $ 25.00 $_____________
SUBTOTAL $_____________
7.0% SALES TAX
TENNESSEE STATE RESIDENTS ONLY $_____________
TOTAL $_____________
SHIP TO
NAME ________________________________________
ADDRESS _____________________________________
CITY ________________________________________
STATE ____________ ZIP ______________________
COD ORDERS NOT ACCEPTED:
page 16
FILE1313.TXT
Disk No: 1313
Program Title: COMPUTER DARKROOM, PROFESSIONAL LIBRARIAN
PC-SIG version: 1
For anyone who develops their own pictures, calculating exposure times
that are dependent on many factors can involve tedious (and expensive)
guesswork. COMPUTER DARKROOM calculates new settings for you quickly
and on the button.
Once you have one exceptable exposure with test prints, this program
gives you the proper exposure times for any changes you decide to make
in paper speed, contrast, magnification, or filter factors for all black
and white prints, color prints, or color slides for f/stop values from
f/2 to f/32.
PROFESSIONAL LIBRARIAN is an information-retrieval system for storing
citations of articles and books of your own library. You can add,
delete, edit, sort and search citations in your database. Each record
includes the author, date, title, citation, number, four subject
categories, and a short description. A listing of the database can be
outputted to the screen, a file, or the printer.
Usage: Photography/Database.
Special Requirements: None.
How to Start: Type GO (press enter).
Suggested Registration: $25.00 each
File Descriptions:
READ ME Introductory Documentation.
CDR EXE Main Program.
CDR TXT Main manual text.
PL EXE Main program.
PLREAD ME Documentation.
PL MEM Memory variables file.
PL FRM Report formats.
PL2 FRM Report formats.
FILES TXT File descriptions.
EXAMPLE DBF Example database.
PC-SIG
1030D E. Duane Avenue
Sunnyvale Ca. 94086
(408) 730-9291
(c) Copyright 1989 PC-SIG, Inc.
FILES.TXT
The following files should be on your disk.
PL.EXE..........The main program for Professional Librarian.
PLREAD.ME.......Documentaion for Professional Librarian.
PL.MEM..........Memory variables file.
PL.FRM..........Report formats.
PL2.FRM.........More report formats.
EXAMPLE.DBF.....Example database of citations from a horticulturist.
GO.TXT
╔═════════════════════════════════════════════════════════════════════════╗
║ <<<< Disk No 1313 COMPUTER DARKROOM, PROFESSIONAL LIBRARIAN >>>> ║
╠═════════════════════════════════════════════════════════════════════════╣
║ ║
║ To print the documentation, type: ║
║ ║
║ MANUAL (press enter) ║
║ ║
║ To start the program Computer Darkroom, type: ║
║ ║
║ CDR (press enter) ║
║ ║
║ To start the program Professional Librarian, type: ║
║ ║
║ PL (press enter) ║
║ ║
╚═════════════════════════════════════════════════════════════════════════╝
Directory of PC-SIG Library Disk #1313
Volume in drive A has no label
Directory of A:\
CDR EXE 69676 10-24-88 1:20p
CDR TXT 43519 10-31-88 12:20p
EXAMPLE DBF 11619 11-17-87 12:20p
FILE1313 TXT 1643 2-23-89 1:49p
FILES TXT 360 11-17-87 12:17p
GO BAT 38 10-19-87 3:56p
GO TXT 1310 2-21-89 3:23p
MANUAL BAT 146 1-18-89 10:47a
PL EXE 159104 6-10-87 2:46p
PL FRM 1990 6-09-87 2:07p
PL MEM 189 11-17-87 12:21p
PL2 FRM 1990 6-09-87 2:23p
PLREAD ME 12446 8-12-87 4:59p
READ ME 3975 10-31-88 12:01p
14 file(s) 308005 bytes
6144 bytes free