Why can't I use another 1394 device with my Olympus Microscope simultaneously?
- CCole WhiteSep 23, 2025
When the DP21 is connected to a PC, other 1394 devices cannot be used on the same PC.

Why can't I use another 1394 device with my Olympus Microscope simultaneously?
When the DP21 is connected to a PC, other 1394 devices cannot be used on the same PC.
How to fix an image that is not in focus with my Olympus DP21?
If the image is not in focus on your Olympus Digital Camera, consider the following: * Ensure the microscope is properly focused by pressing any button or key on the hand switch, mouse, or keyboard. * Adjust parfocality with the TV adapter if it is not properly adjusted. * Slightly close the aperture iris diaphragm of the condenser if it is open too wide. * Adjust the field iris diaphragm until the image circumscribes the field of view. * Clean any contaminated lens components of the microscope or the cover glass on the front of the camera.
Why is the played image not displayed on the monitor of my Olympus DP21?
If the played image is not displayed on the monitor of your Olympus Digital Camera, check the following: * Make sure the system is ON and not in sleep mode by pressing the main switch of the control box to ON. * Ensure the system is in PLAY mode by pressing the MODE switch on the hand switch. * Verify that the USB memory contains a recording by checking the number of remaining images.
Why does the calendar reset every time on my Olympus DP21 Digital Camera?
If the calendar resets every time on your Olympus Digital Camera, the built-in battery is exhausted. The battery can only be replaced by the manufacturer’s personnel for a fee. Please contact Olympus.
What to do if the hand switch buttons on my Olympus DP21 Digital Camera do not work?
If the hand switch buttons on your Olympus Digital Camera are not working, check these items: * Ensure the system is ON and not in standby mode by pressing the main switch of the control box to ON. * Verify that the AC adapter is correctly connected to the control box and the power cord is firmly plugged into a power outlet. * Make sure the USB cable connecting the hand switch is correctly connected.
How to fix incorrect display in Olympus Microscope DP2-TWAIN window?
If the DP2-TWAIN or cellSens / OLYMPUS Stream window of your Olympus Microscope is not displayed correctly, or if the menu characters are not displayed correctly, the resolution setting of the screen may be incorrect. Set the resolution setting at 1280 x 1024 or more in the properties of the screen. Also, if a large font has been selected for the font size of the screen, select a small font in the properties of the screen.
Why is the Olympus Microscope camera head not working?
If the camera head of your Olympus Microscope is not working, make sure the main switch of the camera head is set to ON. If you're using the camera cable (9pins-4pins), ensure the AC adapter is correctly connected to the camera head and the power cord is firmly plugged into a power outlet. Also, verify that the camera cable is correctly connected.
Why Olympus Microscope still images cannot be recorded?
If still images cannot be recorded on your Olympus Microscope, it may be due to ongoing processing. Wait until the DP2-TWAIN or cellSens / OLYMPUS stream completes recording. If necessary, cancel the process and try recording again. Also, wait for file saving to complete. Ensure your computer has sufficient memory by closing other software and saving any unsaved images.
Why is my Olympus Microscope picture too bright?
If the Olympus Microscope picture is too bright, it could be due to several reasons. Check if the exposure correction is set in the + direction and adjust it to the desired value. Also, verify the metering area; if it's set to a dark area outside the region of interest, move it to the area where you want optimum exposure. Cancel AE lock if it was set when the exposure time was longer than required. Reset and readjust the input highlight level if it’s too high. Finally, reduce the microscope illumination intensity or engage an ND filter to reduce brightness.
Why aren't functions interlocked with microscope operations working on my Olympus DP21?
If functions interlocked with microscope operations do not work on your Olympus Digital Camera, check the following: * Ensure that the cables of the microscope, control box for coded units, and DP21 are correctly connected. * Verify that the control box for coded units is recognized. Set the main switches of the control box for coded units and DP21-CB to ON in the following order: 1) control box; 2) DP21-CB. * Confirm that the code revolving nosepiece is connected to the control box for coded units.
| Brand | Olympus |
|---|---|
| Model | DP21 |
| Category | Digital Camera |
| Language | English |
Essential safety guidelines for operating the camera system and handling its components.
Details on compatible adapters, lenses, and usage limitations for optimal performance.
Instructions for handling, cleaning, and storing the camera head and control box.
Important warnings on data storage, disposal of the product, and battery handling.
Guidelines for using the system in standalone mode, including USB device compatibility.
Diagram illustrating the components and connections for the standalone system setup.
Identification of camera head, control box, and hand switch components and their functions.
Procedures for connecting the camera head, control box, and related accessories.
Step-by-step guide from powering on to recording still images and movies.
Detailed operations for exposure, metering, white balance, and image settings.
How to select, view, zoom, and manage recorded images and movies.
Safety guidelines and system requirements for connecting the DP21 to a PC.
Diagram showing the system configuration for PC connection.
Identification of components specific to the PC connection system setup.
Steps for installing the camera head and connecting the camera cable to the PC.
Guide for installing the DP2-TWAIN software and drivers on Windows.
Overview of the image record window and its features within the DP2-TWAIN application.
Workflow for image recording using the DP2-TWAIN software.
Instructions for removing the DP2-TWAIN software and managing related drivers.
Explains various messages displayed by the camera during operation, errors, or confirmations.
Detailed technical data for the DP21 camera, including size, resolution, and environmental conditions.
Solutions for common problems encountered with the camera system.
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