OCS-NK15 - Flash Vello - Free user manual and instructions

Product Type	Off-Camera TTL Flash Cord
Brand	Vello
Model	OCS-NK15
Compatibility	Nikon cameras with i-TTL flash system
TTL Functionality	Full TTL (Through the Lens) flash metering retained
Connector Type	Hot shoe to off-camera hot shoe
Cable Type	Coiled sync cord
Mounting Options	Camera hot shoe and 1/4";-20 threaded socket for light stands or tripods
Locking Mechanism	Yes (select models)
Power Source	No batteries required (passive cord)
Material	Durable plastic and metal contacts
Cleaning Instructions	Wipe with soft, dry cloth; do not use solvents
Water Resistance	Not water-resistant; avoid moisture
Operating Temperature	Avoid extreme heat, cold, or high humidity
Warranty	1-year limited warranty
Package Contents	1x Off-camera TTL flash cord, 1x user manual
Brand Information	Vello by Gradus Group

Frequently Asked Questions - OCS-NK15 Vello

What is the Vello OCS-NK15?

The Vello OCS-NK15 is an Off-Camera TTL Flash Cord designed for Nikon cameras with i-TTL flash systems. It allows you to mount a flash off-camera while retaining full TTL exposure metering.

Is this cord compatible with my camera?

This cord is specifically compatible with Nikon cameras that have a standard hot shoe and support i-TTL flash metering. Check your camera's manual for TTL compatibility.

How do I mount the cord?

Mount the cord's hot shoe connector onto your camera's hot shoe, ensuring it feeds towards the lens. If your model has a locking mechanism, secure it. Then mount your flash onto the off-camera hot shoe.

Can I use the cord with a light stand?

Yes, the off-camera hot shoe has a 1/4";-20 threaded socket that allows you to mount it to a compatible light stand or tripod.

Does the cord support TTL metering?

Yes, the cord supports full TTL (Through the Lens) flash metering, allowing your camera to automatically control flash exposure for balanced lighting.

How do I clean the cord?

Use a soft, dry cloth to wipe the cord and connections. Do not use any solvents or harsh chemicals, as they may damage the components.

Can I use this cord in the rain?

No, the cord is not water-resistant. Avoid using or leaving it in rain, snow, or high humidity conditions to prevent damage.

What is the warranty?

The Vello OCS-NK15 comes with a 1-year limited warranty covering defects in materials and workmanship under normal use. Contact Vello customer service for warranty claims.

How long is the cord?

The cord is coiled and can stretch to a moderate length, typically around 3-4 feet when extended, but the exact length is not specified. Avoid overstretching.

Can I connect multiple cords together?

No, the manual advises against "daisy-chaining" multiple flash cords. Use only one cord per camera and flash setup to ensure stable TTL communication.

USER MANUAL OCS-NK15 Vello

OFF-CAMERA TTL FLASH CORD

USER MANUAL

VELLO

Close-up of a VELLO camera module with coiled cable, no visible text or symbols on the device itself.

INTRODUCTION

Thank you for choosing a Vello Off-Camera TTL Flash Cord. This TTL flash cord allows you to set up a portable flash for off-camera lighting while retaining all of the TTL flash functionality achieved in modern digital cameras.

Off-camera lighting reduces the harsh shadows of direct on-camera flash and gives your photos more natural lighting. TTL (through the lens) functions of modern cameras handle exposure calculations so you can concentrate on composing the image. Because the light from the flash is measured through the lens by the camera, there is no need for exposure calculations or a separate light meter.

Close-up of two black Vello flashlights with attached connectors (no visible text or symbols)

CAUTIONS

Switch off all devices (cameras and flashes) before adding or removing a flash unit.

Use caution in stretching the coiled cord. Do not stretch the cord to lengths where it will cause your setup to become unstable.

Do not attempt to modify or disassemble the cord, shoe, or contacts. Do not attempt to "daisy-chain" flash cords.

This device is not water-resistant. Do not immerse in or expose to water, rain, or snow.

Do not clean the cord with solvents. Use a soft, dry cloth to clean the cord and connections.

Do not use or leave the device in conditions of extreme heat, severe cold, or high humidity.

COMPATIBILITY

Three VELLO camera modules connected by a coiled cable, displayed on a plain surface (no text or symbols visible on the devices themselves).

Vello makes several models of Off-Camera TTL Flash Cords that are compatible with different makes of camera. Your cord may look different from the one pictured in this guide.

Read your camera's user manual for further instructions on use of off-camera sync cords and the TTL functions of your camera.

MOUNTING ON THE CAMERA

Close-up of a hand holding a black cable attached to a DSLR camera (no visible text or symbols)

Close-up of a hand adjusting a black DSLR camera module with a rotary knob (no visible text or symbols)

1. Mount the flash sync cord to your camera's hot shoe. The cord should feed towards the lens.

2. If your model of TTL Flash Cord has a locking mechanism, use it to secure the cord to the hot shoe.

OFF-CAMERA MOUNTING

Close-up of a hand adjusting a black mechanical component next to a brass-colored connector (no text or symbols visible)

Close-up of a hand adjusting a black mechanical component with a gold connector (no visible text or symbols)

1. The off-camera hot shoe of the sync cord can be mounted to an accessory shoe.

2. Or use the 1/4"-20 threaded socket to mount to a compatible tripod, boom, or light stand.

MOUNTING THE OFF-CAMERA FLASH

1. Make certain that the flash and camera are turned OFF before mounting the flash.
2. Mount the flash to the hot shoe of the off-camera flash sync cord.
3. Turn on the camera and flash. Refer to the user manuals of your camera and flash for instructions on TTL light metering.

Professional camera setup with DSLR and umbrella, no visible text or symbols

One-Year Limited Warranty

This VELLO product is warranted to the original purchaser to be free from defects in materials and workmanship under normal consumer use for a period of one (1) year from the original purchase date or thirty (30) days after replacement, whichever occurs later. The warranty provider's responsibility with respect to this limited warranty shall be limited solely to repair or replacement, at the provider's discretion, of any product that fails during normal use of this product in its intended manner and in its intended environment. Inoperability of the product or part(s) shall be determined by the warranty provider. If the product has been discontinued, the warranty provider reserves the right to replace it with a model of equivalent quality and function.

This warranty does not cover damage or defect caused by misuse, neglect, accident, alteration, abuse, improper installation or maintenance. EXCEPT AS PROVIDED HEREIN, THE WARRANTY PROVIDER MAKES NEITHER ANY EXPRESS WARRANTIES NOR ANY IMPLIED WARRANTIES, INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. This warranty provides you with specific legal rights, and you may also have additional rights that vary from state to state.

To obtain warranty coverage, contact the Vello Customer Service Department to obtain a return merchandise authorization (“RMA”) number, and return the defective product to Vello along with the RMA number and proof of purchase. Shipment of the defective product is at the purchaser’s own risk and expense.

For more information or to arrange service, visit www.vellogear.com or call Customer Service at 212-594-2353.

Product warranty provided by the Gradus Group.

www.gradusgroup.com

VELLO is a registered trademark of the Gradus Group.

© 2018 Gradus Group LLC. All Rights Reserved.

VELLO*

A Gradus Group Brand

www.vellogear.com