Ricoh G900II
RICOH G900 II Professional Digital Camera User Manual
Model: G900II
1. Introduction
The RICOH G900 II is a robust digital camera designed for demanding environments such as construction sites, disaster areas, and medical facilities. It features a durable construction that is waterproof, dustproof, shock-resistant, and chemical-resistant, making it an ideal tool for professional use where reliability is paramount.
This manual provides essential information on setting up, operating, maintaining, and troubleshooting your RICOH G900 II camera. Please read it thoroughly to ensure proper and safe use of the product.

Figure 1: Front view of the RICOH G900 II camera.
2. Key Features
- Toughness Design for Harsh Environments:
- High waterproof performance (JIS protection class 8, IPX8 equivalent) for continuous underwater use up to 20m for 2 hours.
- Drop impact resistance from 2.1m, dustproof performance (JIS protection class 6, IP6X equivalent), cold-resistant structure operable at -10°C, and load-bearing structure up to 100kgf.
- Chemical resistance to withstand disinfection with sodium hypochlorite and chlorine dioxide water.
- High-Quality Imaging: Achieves high sensitivity (max ISO 25600) and high-definition images (approx. 20 million effective pixels) with a back-illuminated CMOS image sensor and high-performance image processing engine.
- Digital Blackboard Information Linkage: Complies with J-COMSIA's digital blackboard information linkage and tampering detection functions, facilitating photo shooting in challenging environments and generating electronic blackboards.
- Camera Memo Function: Reduces data management post-shooting by allowing up to 100 memo items (128 characters each, 30 seconds audio) to be attached to images. Includes a tampering detection function and barcode reading integration.
- High Operability: Glove-friendly button layout, easy-grip design, and 2-point neck strap support.
- High-Quality Web Camera Function: Features a high-intensity variable ring light and close-up shooting from 1cm.
3. Setup
3.1 Unpacking and Initial Inspection
Carefully unpack the camera and all accessories. Verify that all components listed in the packaging are present and undamaged. If any items are missing or damaged, contact customer support immediately.
3.2 Battery Installation and Charging
- Open the battery/card compartment cover on the side of the camera.
- Insert the supplied lithium-ion battery (DB-110) into the compartment, ensuring the correct orientation.
- Close the cover securely until it clicks into place.
- Connect the camera to a power source using the supplied USB cable and AC adapter to fully charge the battery before first use. The charging indicator will show the charging status.
3.3 Memory Card Insertion
- Open the battery/card compartment cover.
- Insert a compatible SD, SDHC, or SDXC memory card into the card slot with the label facing the correct direction.
- Close the cover securely.
3.4 Attaching the Neck Strap
Attach the supplied neck strap to the two strap lugs on the camera body for secure handling and to prevent accidental drops.

Figure 2: Various views of the RICOH G900 II, highlighting button placement and compartments.
4. Operating Instructions
4.1 Power On/Off
Press and hold the ON/OFF button located on the top of the camera to power it on or off.
4.2 Basic Photography
- Select Shooting Mode: Rotate the mode dial to select your desired shooting mode (e.g., Auto, Program, Scene).
- Focus: Point the camera at your subject. The camera will automatically focus. For macro shots, ensure the subject is at least 1cm away.
- Shoot: Press the shutter button halfway to focus, then press it fully to capture the image.
4.3 Using the Ring Light
The RICOH G900 II features a variable ring light around the lens for close-up illumination. This is particularly useful for macro photography or in low-light conditions. Refer to the camera's on-screen menu for specific controls to activate and adjust the ring light intensity.

Figure 3: The RICOH G900 II with its integrated ring light activated.
4.4 Digital Blackboard and Camera Memo Functions
These advanced features are designed to streamline workflow in professional settings. Detailed instructions for creating blackboard templates, linking camera memo information (text, images, audio), and utilizing the tampering detection function are available in the camera's internal PC application software "EX2" and the full digital manual.
4.5 Lens Filter Attachment
The camera allows for the attachment of 37mm filters to the front of the lens, expanding creative possibilities. Ensure filters are securely attached to maintain the camera's waterproof and dustproof integrity.

Figure 4: Attaching a 37mm lens filter to the RICOH G900 II.
5. Maintenance
5.1 Cleaning the Camera
- After use in harsh environments, especially underwater or dusty conditions, rinse the camera with fresh water and wipe it dry with a soft cloth.
- For chemical disinfection, the camera is resistant to sodium hypochlorite and chlorine dioxide water. Follow proper disinfection protocols for your environment.
- Use a lens brush or blower to remove dust from the lens. For stubborn smudges, use a lens cleaning solution and a microfiber cloth.
5.2 Battery Care
To prolong battery life, avoid exposing the battery to extreme temperatures. Store the battery in a cool, dry place when not in use. Fully charge the battery before extended storage.
5.3 Storage
Store the camera in a dry, well-ventilated area away from direct sunlight and extreme temperatures. Ensure all covers and compartments are securely closed to maintain the camera's protective features.
6. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Camera does not power on. | Battery is depleted or incorrectly inserted. | Charge the battery. Reinsert the battery correctly. |
| Cannot take pictures. | Memory card is full, locked, or not inserted. | Delete unnecessary images, unlock the card, or insert a memory card. |
| Images are blurry. | Lens is dirty, camera shake, or incorrect focus. | Clean the lens. Hold the camera steady. Ensure proper focus. |
| Water droplets inside the lens. | Compartment covers not properly sealed. | Ensure all covers are securely closed before underwater use. If water ingress occurs, contact service. |
For issues not listed here, or if problems persist, please contact customer support.
7. Specifications
| Feature | Detail |
|---|---|
| Brand | Ricoh |
| Model Name | G900II |
| Effective Pixels | Approx. 20 MP |
| Image Sensor | CMOS (Back-illuminated) |
| Optical Zoom | 5x |
| Focal Length | 28mm (wide-angle equivalent) |
| Maximum Aperture | F2.8 - F5.6 |
| Shutter Speed | 30 seconds to 1/4000 seconds |
| Image Stabilization | Digital |
| Waterproof | 20m (JIS IPX8 equivalent) |
| Dustproof | IP6X (JIS protection class 6 equivalent) |
| Shock Resistance | 2.1m drop |
| Cold Resistance | -10°C |
| Chemical Resistance | Resistant to sodium hypochlorite, chlorine dioxide water |
| Display | 3-inch LCD |
| Video Resolution | 1080p (MP4 format) |
| Storage Media | SD, SDHC, SDXC memory cards |
| Connectivity | GPS, Micro HDMI |
| Battery Type | Lithium-ion (DB-110) |
| Battery Weight | 26g |
| Special Features | Digital Blackboard Linkage, Camera Memo Function, Tampering Detection, Barcode Reading |
8. Warranty and Support
8.1 Manufacturer's Warranty
The RICOH G900 II comes with a 1-year manufacturer's warranty from the date of purchase. Please retain your proof of purchase for warranty claims. The warranty covers defects in materials and workmanship under normal use. It does not cover damage caused by misuse, accidents, unauthorized repairs, or natural disasters.
8.2 Customer Support
For product-related inquiries or technical assistance, please contact the Ricoh Imaging Customer Service Center:
- Telephone Inquiries: TEL: 0570-001313
Business Hours: 10:00 AM - 5:00 PM (Japan Standard Time)
*Closed on Sundays, public holidays, New Year holidays, special company holidays, and building facility inspection days. - Email Inquiries: Visit the official support page at https://www.ricoh-imaging.co.jp/japan/support/product_web.html
*For inquiries specifically related to Amazon orders or services, please contact Amazon Customer Support directly.
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