Neewer NW-670 TTL Flash Speedlite Instruction Manual

1. Introduction

This manual provides comprehensive instructions for the safe and effective use of your Neewer NW-670 TTL Flash Speedlite kit. Please read this manual thoroughly before operating the product to ensure optimal performance and to prevent damage.

An introductory image showcasing the Neewer NW-670 TTL Flash Kit, emphasizing its compatibility with Canon cameras and key features such as Guide Number 58, 5600K color temperature, and various flash modes including TTL, Manual, Multi, S1, and S2.

2. What's in the Box

Verify that all items listed below are included in your package:

• 1 x Neewer Pro E-TTL Auto-Focus Flash
• 1 x 2.4GHz 3-IN-1 Wireless Camera Flash Trigger with Camera Remote Control Function
• 2 x Cables (M-Cord + B-Cord Cables) for Remote Control
• 1 x Soft Flash Diffuser
• 1 x Lens Cap Holder

This image displays the complete Neewer NW-670 TTL Flash Speedlite kit. It includes the main flash unit, two 2.4GHz wireless triggers, two sync cables (C1/C3), a soft flash diffuser, and a lens cap holder.

3. Product Overview

The Neewer NW-670 is a versatile TTL flash speedlite designed for Canon DSLR cameras, offering powerful illumination and flexible control options. It features a high guide number of 58 (at 105mm focal length, ISO 100) and supports various flash modes including TTL, Manual, Multi, S1, and S2. The kit also includes a 2.4GHz wireless trigger for off-camera flash control and remote camera triggering.

3.1. Flash Unit Controls and Display

A detailed diagram of the Neewer NW-670 flash unit, highlighting its LCD display and various control buttons such as the Mode button, Recycle indicator/test button, Function/Direction buttons, Tilting angle scale, On/off switch, Backlight button, and SET button for easy operation.

• LCD Display: Shows current settings, mode, zoom, and exposure compensation.
• M (Mode) Button: Cycles through flash modes (TTL, Manual, Multi, S1, S2).
• Recycle Indicator/Test Button: Lights up when the flash is ready to fire; press to test fire.
• Function/Direction Buttons: Navigate menus and adjust settings.
• On/Off Switch: Powers the flash unit on or off.
• Backlight Button: Activates the LCD backlight.
• SET Button: Confirms selections.
• Tilting Angle Scale: Indicates the vertical angle of the flash head.

3.2. Flash Head Rotation

The flash head offers extensive rotation for bounce flash photography:

• Vertical Rotation: -7 to 90 degrees
• Horizontal Rotation: 0 to 270 degrees

This image illustrates the flexibility of the Neewer NW-670 flash head, capable of vertical rotation from -7 to 90 degrees and horizontal rotation from 0 to 270 degrees, allowing for bounce flash and varied lighting angles.

4. Setup

4.1. Battery Installation

The NW-670 flash unit requires 4 AA batteries (not included). Open the battery compartment on the side of the flash unit, insert the batteries according to the polarity indicators, and close the compartment securely.

4.2. Mounting the Flash on Camera

To mount the flash onto your Canon DSLR camera:

1. Slide the flash unit's hot shoe into your camera's hot shoe mount.
2. Tighten the locking ring on the flash unit to secure it in place.

A close-up view of the Neewer NW-670 flash's hot shoe mount, designed for direct attachment to Canon DSLR cameras.

4.3. Setting up the 2.4GHz Wireless Trigger

The 2.4GHz wireless trigger system consists of a transmitter and a receiver. Both units require 2 AAA batteries each (not included).

1. Install batteries into both the transmitter and receiver units.
2. Set the DIP switches on both the transmitter and receiver to the same channel (1-16) to ensure proper communication.
3. Mount the transmitter onto your camera's hot shoe.
4. Attach the receiver to the flash unit's hot shoe (if using off-camera flash) or connect it to the camera's remote control port using the provided C1/C3 cables for remote camera triggering.

A detailed view of the Neewer 2.4GHz wireless trigger highlights its DIP switches, which allow users to select from 16 different channels to avoid interference when using multiple triggers or in crowded environments.

This image displays the Neewer 2.4GHz wireless transmitter and receiver units, essential components for off-camera flash control.

5. Operating Modes

The NW-670 offers several flash modes to suit various photographic needs. Press the M (Mode) button to cycle through the available modes.

This image provides visual examples of the Neewer NW-670's various flash modes: TTL Mode for automatic exposure, Manual Flash for precise power control, Exposure Compensation for fine-tuning brightness, and S1/S2 Slave Flash Mode for optical triggering.

5.1. TTL Mode (Through-The-Lens)

In TTL mode, the flash output is automatically adjusted by the camera's light metering system to achieve balanced and accurate exposure. This is ideal for quick shooting and changing light conditions.

This composite image illustrates the effect of TTL (Through-The-Lens) flash mode, comparing a photo taken without flash to one with flash. It also shows examples of exposure compensation, demonstrating adjustments from -0.3EV to +0.3EV.

5.2. Manual (M) Mode

Manual mode allows you to set the flash power output manually, from full power (1/1) down to 1/128 power, in 1/3 stop increments. This provides precise control over lighting for consistent results.

5.3. Multi (Stroboscopic) Mode

Multi mode allows the flash to fire multiple times during a single exposure, creating stroboscopic effects to capture continuous movement of a subject.

5.4. S1/S2 Slave Modes

These optical slave modes allow the NW-670 to be triggered by another flash unit without a physical connection.

• S1 Mode: Triggers the NW-670 when it detects the first flash from a master flash. Suitable for manual flash systems.
• S2 Mode: Ignores the pre-flash from a TTL master flash and triggers on the main flash. Suitable for TTL flash systems.

The Neewer NW-670 flash unit's LCD screen is shown displaying various operational modes, including Manual (M) for precise power control, Multi for stroboscopic effects, and Slave (S1/S2) for optical triggering.

6. Wireless Trigger Functionality

The included 2.4GHz wireless trigger allows for versatile off-camera flash control and remote camera shutter release.

6.1. Off-Camera Flash

Mount the transmitter on your camera's hot shoe and the receiver on the flash unit's hot shoe. Ensure both are set to the same channel. The camera's shutter release will trigger the off-camera flash wirelessly.

The image shows the Neewer NW-670 flash unit mounted on a camera's hot shoe, with a wireless trigger also attached. A second flash unit is positioned off-camera, demonstrating wireless flash capabilities.

6.2. Remote Camera Control

Connect the receiver to your camera's remote control port using the appropriate C1 or C3 cable. You can then use the transmitter to remotely trigger your camera's shutter.

This image demonstrates the camera remote control function, where a user holds a Neewer wireless remote to trigger a camera that has a wireless receiver connected via a sync cable.

7. Using Diffusers

The kit includes a soft flash diffuser to modify the light output of the flash. Diffusers help to soften harsh shadows and create more even, flattering illumination.

• Soft Flash Diffuser: Slides over the flash head to spread and soften the light.
• The flash also has a built-in wide-angle diffuser and a reflection panel that can be pulled out from the flash head.

The Neewer NW-670 flash unit is shown with a mini softbox diffuser attached to its head, designed to soften and spread the light for more flattering illumination.

8. Maintenance

• Keep the flash unit and accessories clean and dry. Use a soft, dry cloth to wipe surfaces.
• Avoid exposing the unit to extreme temperatures, humidity, or direct sunlight.
• Remove batteries if the unit will not be used for an extended period to prevent leakage.
• Do not attempt to disassemble or repair the unit yourself. Refer to qualified service personnel.

9. Troubleshooting

10. Specifications

11. Warranty and Support

This product is backed by a NEEWER 1 Year 100% Satisfaction Guarantee. For technical support, warranty claims, or further assistance, please contact NEEWER customer service through their official website or the retailer where the product was purchased. Please retain your proof of purchase for warranty purposes.