1. Product Overview
The NEEWER NW620 Speedlite Flash is a powerful and versatile on-camera flash unit designed for various DSLR and mirrorless cameras. It features a high guide number of GN60 (m ISO 100, at 200mm), 76W power output, and a stable color temperature of 5600K±200K. The flash supports Manual (M), Multi, S1, and S2 optical control modes, offering flexible lighting options for photographers.
Its flexible flash head allows for tilt and pan adjustments, and the manual zoom range from 20mm to 200mm provides precise light coverage. An integrated LCD display clearly presents flash settings and custom functions. The NW620 is powered by four AA NiMH batteries and can also connect to an external power source for faster recycling times.
Figure 1.1: NEEWER NW620 Speedlite Flash highlighting key features and compatibility.
2. Package Contents
Verify that all items listed below are included in your package:
- 1 x NW620 Speedlite Flash
- 1 x Mini Stand
- 1 x Storage Pouch
- 1 x Instruction Manual
Figure 2.1: Included items in the NW620 Speedlite Flash package.
3. Controls and Display
The NW620 Speedlite Flash features an intuitive LCD display and control buttons for easy operation and setting adjustments.
3.1 LCD Display
The LCD screen provides clear visual feedback on current flash settings, including mode, power output, zoom level, and custom functions.
Figure 3.1: LCD Display and control panel of the NW620 Speedlite Flash.
3.2 Custom Settings
The flash unit supports various custom settings to personalize its operation. These settings can be accessed and adjusted via the control panel.
| Custom Function Symbol | Function | Set Symbol |
|---|---|---|
| STBY | Auto Sleep Settings | ON / OFF |
| SV STBY | Slave Unit Auto Power Off Timer | 30min / 60min / OFF |
| BEEP | Buzzer | ON / OFF |
| LIGHT | Backlight Illumination Time | 12sec / OFF / ON |
| LCD | LCD Display Contrast | -3 ~ +3 |
Figure 3.2: Custom settings options on the NW620 flash.
4. Setup
4.1 Battery Installation
- Open the battery compartment cover located on the back of the flash unit.
- Insert four (4) AA NiMH batteries, ensuring correct polarity (+/-). NiMH batteries are recommended for optimal performance.
- Close the battery compartment cover securely.
4.2 Mounting on Camera
- Slide the flash unit onto your camera's hot shoe until it clicks into place.
- Tighten the locking ring or lever on the flash unit to secure it to the hot shoe.
4.3 External Power Supply
For extended use and faster recycling times, the NW620 can be connected to an external power source via the CP-E4 port (external power pack sold separately).
Figure 4.1: Battery compartment and external power port.
5. Operating Modes
The NW620 Speedlite Flash offers several operating modes to suit different photographic needs.
5.1 Manual (M) Mode
In Manual mode, you have full control over the flash output. Adjust the power from 1/1 (full power) to 1/256 in 0.1 increment steps using the control dial.
5.2 Multi Flash Mode
Multi flash mode allows the flash to fire multiple times within a single exposure, creating a stroboscopic effect to capture successive movements of a subject in one photograph. You can set the number of flashes (up to 100) and the flash frequency (up to 199Hz).
5.3 S1/S2 Optical Slave Modes
These modes enable the NW620 to be triggered by another flash unit. S1 mode triggers the flash upon detecting the first flash from the master unit. S2 mode ignores the pre-flash of a TTL master flash and triggers on the main flash, making it suitable for use with TTL systems in a slave capacity.
Figure 5.1: Overview of Manual, S1/S2 Slave, and Multi Flash modes.
6. Adjustments
6.1 Flash Head Angle
The flash head can be tilted from -7° to 120° and panned 360° (180° left, 180° right). This flexibility allows for bounce flash photography, directing light off ceilings or walls for softer, more natural illumination.
6.2 Manual Zoom
The flash zoom can be manually adjusted from 20mm to 200mm to match the focal length of your lens, ensuring efficient light distribution and coverage.
Figure 6.1: Flash head tilt, pan, and manual zoom capabilities.
6.3 Light Modifiers
The NW620 includes a built-in reflector panel and a wide-angle diffuser. The reflector panel can be pulled out to reflect light into the subject's eyes for a natural catchlight, while the wide-angle diffuser helps to soften and spread the light for broader coverage.
Figure 6.2: Built-in reflector panel and wide-angle diffuser.
7. Maintenance
Proper maintenance ensures the longevity and optimal performance of your Speedlite flash.
- Cleaning: Use a soft, dry cloth to clean the flash unit. For stubborn dirt, a slightly damp cloth can be used, followed by a dry cloth. Avoid using solvents or abrasive cleaners.
- Battery Care: Remove batteries if the flash will not be used for an extended period to prevent leakage. Store batteries in a cool, dry place.
- Storage: Store the flash unit in its protective pouch in a cool, dry environment, away from direct sunlight and extreme temperatures.
- Hot Shoe Contact: Keep the hot shoe contacts clean and free from debris to ensure reliable communication with the camera.
8. Troubleshooting
If you encounter issues with your NW620 Speedlite Flash, refer to the following common problems and solutions:
- Flash not firing:
- Ensure batteries are correctly installed and charged.
- Check that the flash is securely mounted on the camera's hot shoe.
- Verify that the flash is turned ON and the ready indicator light is illuminated.
- Confirm camera compatibility. Note: Not compatible with EOS Rebel SL3/250D, Rebel T7/1500D 2000D, Rebel T100/3000D 4000D.
- Slow recycling time:
- Ensure fresh, high-quality NiMH batteries are used.
- Consider connecting an external power pack via the CP-E4 port for faster recycling.
- Inconsistent flash output:
- Check the flash power setting in Manual mode.
- Ensure the flash head zoom matches the lens focal length.
- Flash not triggering in S1/S2 mode:
- Ensure the optical sensor on the NW620 is facing the master flash.
- Verify the master flash is firing correctly.
9. Specifications
Detailed technical specifications for the NEEWER NW620 Speedlite Flash:
| Feature | Specification |
|---|---|
| Model | NW620 |
| Guide Number | GN60 (ISO 100, 200mm) |
| Flash Coverage | 20-200 mm (manual zoom) |
| Tilting Angle | -7°~120° |
| Panning Angle | 0°-360° |
| Power Supply | 4× AA battery (not included, NiMH batteries recommended) |
| Number of Flashes | 100-1500 times |
| Recycle Time | 0.1-2.7s (using NiMH batteries) |
| Flash Duration | 1/300S-1/20000S |
| Color Temperature | 5600K±200K |
| Flash Mode | M, Multi, S1, S2 |
| Wireless Distance (S1/S2 Mode) | 10 meters |
| Dimensions | 7.95 x 2.17 x 2.8 inches (2.8"×2.2"×7.9" / 71 x 55 x 202mm) |
| Net Weight | 1.21 pounds (368g) |
Figure 9.1: NEEWER NW620 Speedlite Flash specifications.
10. Warranty and Support
NEEWER products are designed and manufactured to high-quality standards. For information regarding warranty coverage, please refer to the warranty card included with your product or visit the official NEEWER website.
For technical support, troubleshooting assistance, or service inquiries, please contact NEEWER customer service through their official website or the contact information provided in your product documentation.
