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Canon Camera TWAIN Driver
README File
Version 4.5
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Copyright (c)1997-2002 CANON INC.
____________________________________________________________________________
Thank you for your purchase of the Canon Camera.
This README file contains the latest information on the Canon Camera TWAIN
driver. Please read this file before using the TWAIN driver.
Cautions Relating to the TWAIN Specification
The TWAIN specification is periodically updated and software development
companies modify their software to reflect these changes. Accordingly, problems
may occur because some applications do not fully comply with the current TWAIN
specification.
Canon works closely with a range of software companies to identify and resolve
these problems so that our users can enjoy trouble-free use of the software.
____________________________________________________________________________
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CONTENTS
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1. GENERAL ISSUES
2. Problems that may Occur when Using Some Display Cards
3. Cautions Relating to Windows 2000 Imaging
4. Cautions Relating to Specific Applications and System Configurations
5. Cautions when Renewing Thumbnails after Changing Developing Conditions
6. Cautions Relating to Windows98SE
7. Cautions Relating to Windows98SE and WindowsME
8. Cautions when Connecting to a Camera
9. Cautions Relating to Image Rotation Short-Cut Key
10. About Files Saved in TIFF(16bit/ch)
11. Note on using Camera EOS-1D
1. GENERAL ISSUES
===================
(1) Disk Space
The TWAIN driver creates a number of temporary files.
These files will be deleted when the TWAIN driver shuts down. However,
they may remain on the hard disk if the TWAIN driver crashes for any reason.
The next time the TWAIN driver is activated, such temporary files should
be deleted, if any.
(2) 16-bit TWAIN and 32-bit TWAIN
The Canon Camera TWAIN driver is a full 32-bit application.
If you see the "TWAIN_32" and "TWAIN" options on the menu in the application
program, always select "TWAIN_32".
2. Problems that may Occur when Using Some Display Cards
=================================================
On some display cards, operation may become unstable when TWAIN driver is
started from PhotoShopLE5.0.
If this happens, use TWAIN driver starting PhotoShop after running the fixing
program dispinit.exe.
Since it is necessary to run dispinit.exe on each system start-up, it is
recommended to register dispinit.exe as Windows start up program.
* dispinit.exe is located in the same folder as the installer (setup.exe).
On the CD, it is stored in the [SOFTWARE / TW_USB / YOUR CAMERA MODEL NAME
/ LANGUAGE] folder.
3. Cautions Relating to Windows 2000 Imaging
==========================================================
When using Twain driver from the Windows 2000 Imaging application, set
[Image Transfer to Application] on RAW Processing Settings tab in the
Preferences dialog to [Each Color 8bit Transfer].
Since Windows 2000 Imaging application does not provide each color 16 bit
transfer, image transfer cannot be performed correctly when
[Each Color 16bit Transfer] is set.
4. Cautions Relating to Specific Applications and System Configurations
============================================
Canon has tested the operation of the driver on as many TWAIN-compatible
applications and system configurations as possible.
The following compatibility problems have been found.
(1) Transferring images to Photoshop 5.0LE
The maximum number of images that can be transferred to Photoshop 5.0LE
at one time is 30.
(2) Cautions relating to communication between the Canon Camera TWAIN driver
and a Canon digital camera
When the TWAIN driver is running and is connected to a camera, the driver
makes communications with the camera periodically. Do not operate the camera
controls, remove the memory card or battery, disconnect the communication
cable, or otherwise interfere with the communications.
Such actions may cause misoperation on some PCs.
Wait until the TWAIN driver has shut down before doing such actions.
(3) Cautions relating to USB and IEEE1394 connections
Do not place your computer in standby mode while a Canon camera is connected
to the USB or IEEE1394 port. If the computer goes into standby mode while the
camera is connected to the USB or IEEE1394 port, do not disconnect the cable from
the computer. Instead, restore the computer to normal operation mode with the
cable still connected.
Unplugging the cable with the computer in standby mode may cause some computers
to not recover correctly from standby mode. For details on standby mode, refer
to your computer's manual.
5. Cautions when Renewing Thumbnails after Changing Developing Conditions
===========================================
Do not perform mouse operations while the progress dialog is displayed
when you changed developing conditions after choosing multiple thumbnail images
in the RAW format.
If you performed mouse operations, the thumbnails after processing may not
display correctly. If this happens, correct thumbnail images can be displayed
after their adjustment using TWAIN driver window resizing or other methods.
6. Cautions Relating to Windows98SE
==============================
Users running the Windows 98SE operating system are recommended to install
the following update program from Microsoft web page to ensure more stable
operation.
"Windows 98 Second Edition 1394 Storage Supplement"
7. Cautions Relating to Windows98SE and WindowsME
================================================
When the camera is connected to the computer please set the auto power off
function to [OFF].
8. Cautions when Connecting to a Camera
========================
Communications with a camera cannot be performed while its LCD monitor is on.
If the LCD monitor is on, turn off it (by semi-depressing the shutter button,
for example) before connecting the camera to the computer.
9. Cautions Relating to Image Rotation Short-Cut Key
=================================================
Image rotation to right or left using Ctrl+R and Ctrl+L keys does not function.
For image rotation use [Right 90 degree Rotation] or [Left 90 degree Rotation]
buttons from the toolbar.
10. About Files Saved in TIFF(16bit/ch)
======================================
Images saved in the TIFF(16bit/ch) format are not displayed correctly in the
thumbnails view of the Windows Explorer.
11. Note on using Camera EOS-1D
=======================================
1) Displaying Image Information
The correct time value is not recorded for the image's shutter speed
property in the case of long-duration bulb exposures of 100 minutes or
more.
2) 8-bit Linear Image Transfer
When an image quality of the RAW image shot by EOS-1D was adjusted using an
image retouch software, after the image was transferred using 8-bit linear
method, noise in the dark parts may appear.
Use of 16-bit transfer is recommended for linear transfer.
3) Setting IPTC Information
IPTC Information cannot be set when [All] is selected for image display format.
Set image display format to [EOS-1D RAW] or [All EOS-1D]
4) Selecting White Balance List Box After Applying Click White Balance
For EOS-1D images, processed with click white balance, click white balance
always takes priority, so that even if the [White balance] list box is checked on,
this setting will not be reflected.
Disable [Click white balance] by clearing the [Click white balance] checkbox
to enable selection from [White balance] list box.
<End of File>
Download Driver Pack
After your driver has been downloaded, follow these simple steps to install it.
Expand the archive file (if the download file is in zip or rar format).
If the expanded file has an .exe extension, double click it and follow the installation instructions.
Otherwise, open Device Manager by right-clicking the Start menu and selecting Device Manager.
Find the device and model you want to update in the device list.
Double-click on it to open the Properties dialog box.
From the Properties dialog box, select the Driver tab.
Click the Update Driver button, then follow the instructions.
Very important: You must reboot your system to ensure that any driver updates have taken effect.
For more help, visit our Driver Support section for step-by-step videos on how to install drivers for every file type.