Inspiration strikes.
VX-710C
TTL FLASH
User’s Manual
Copyright © 2012 Gradus Group.
Bolt and other names of Bolt products are trademarks of Gradus Group. Other product and corporate names mentioned herein are trademarks of their respective holders.
2 | Introduction
Introduction
Thank you for choosing the Bolt VX-710C Flash. This advanced digital flash unit puts creative control in your hands with a broad range of automatic and manual features. It can be used as both an on-camera flash and as a wireless slave flash. Among the benefits you’ll enjoy:
•Full compatibility with Canon’s E-TTL and E-TTL II metering systems
•Flash exposure bracketing
•Automatic and manual zoom from 24mm to 180mm
•Tilt and swivel head: -7° down, 90° up, 180° right, and 90° left
•Two-inch backlit LCD
•Eight manual flash levels: full to 1/128 power, plus fine-tuning by 1/3
•Autofocus-assist for low-light photography
•Wireless optical slave
•Rear-curtain sync
•Built-in reflector and diffuser panels
•Automatic power-saving function
Introduction | 3
Contents |
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Introduction .................................................................................................................................................. |
2-3 |
Overview ...................................................................................................................................................... |
6-9 |
Warnings .................................................................................................................................................. |
10-12 |
Installing Batteries .................................................................................................................................... |
12-13 |
Mounting the Flash ................................................................................................................................... |
14-15 |
Turning on the Flash and Firing a Test ....................................................................................................... |
16-18 |
Extended Interface.................................................................................................................................... |
19-20 |
Using the Automatic TTL Flash Mode ............................................................................................................. |
21 |
Locking Flash Value ....................................................................................................................................... |
22 |
Using Flash Exposure Compensation.............................................................................................................. |
23 |
Using Flash Exposure Bracketing .............................................................................................................. |
24-25 |
Using the Manual Flash Mode ................................................................................................................... |
26-27 |
4 | Contents
Controlling Flash Coverage (Zoom)............................................................................................................ |
27-30 |
Using the Autofocus-Assist Light.................................................................................................................... |
31 |
Bouncing Your Flash.................................................................................................................................. |
31-33 |
Red-Eye Reduction ........................................................................................................................................ |
34 |
Using Rearor Second-Curtain Synchronization ........................................................................................ |
34-35 |
Using Your VX-710C as a Wireless Manual Slave ....................................................................................... |
36-38 |
Positioning Slave Flash Units..................................................................................................................... |
38-39 |
Troubleshooting ........................................................................................................................................ |
40-41 |
Specifications ................................................................................................................................................ |
42 |
Customer Service .......................................................................................................................................... |
42 |
FCC Notices................................................................................................................................................... |
43 |
Limited Warranty ........................................................................................................................................... |
44 |
Contents | 5
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6 | Overview
Overview
1. |
Flash head |
17. |
Mode button |
2. |
Reflector panel |
18. |
Navigation buttons |
3. |
Diffuser panel |
19. |
Power switch |
4. |
AF assist light |
20. |
Flash ready light |
5. |
Wireless slave sensor |
21. |
Zoom position button |
6. |
Locking wheel |
22. |
Battery compartment cover |
7.Mounting foot
8.Extended interface cover
9.Power source socket
10.PC sync terminal
11.Flash head position indicator (tilt)
12.Flash head position indicator (swivel)
13.LCD
14.Sub button
15.Lock / audio button
16.Pilot button
Overview | 7
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Zoom 
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ISO |
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8 | Overview
23.TTL mode
24.Manual zoom mode
25.Zoom position
26.Flash exposure bracketing
27.Flash exposure compensation
28.Manual mode
29.ISO speed
30.Lock icon
31.Sound icon
32.Low battery icon
33.Thermal warning icon
34.Manual flash output / Flash exposure compensation value / Flash exposure bracketing value
35.Camera communication icon
36.S1/S2 wireless flash mode icon
37.Rear-curtain sync icon
38.Camera aperture (f-stop) / Manual flash 1/3-stop increment
39.PC sync cord
40.Soft case
41.Stand / Tripod mount
Overview | 9
Warnings
Before using your VX-710C, please read the following safety notices carefully and thoroughly to ensure safe use, and to help prevent damage to your flash or injury to yourself or others.
•Do not fire the flash at close range directly into the eyes of people or animals. This can cause damage to the retina and may even lead to blindness.
•To avoid overheating and damaging your flash unit, please wait for at least ten minutes after twenty-five continuous flashes at full power.
•Do not disassemble or attempt to repair this product yourself. There are high-voltage components inside that can produce a hazardous electric shock.
•Keep this product and its batteries out of the reach of children.
•Use only the power sources specified in this manual.
•Always switch the flash off before changing the batteries.
•Always install AA batteries of the same type, brand, and age. Do not combine different types or brands, or old and new batteries. This can cause the batteries to leak, overheat, or explode.
•Install the batteries in the proper orientation, according to the indicator in the battery chamber. Installing batteries in the reverse orientation may cause them to leak, overheat, or explode.
10 | Warnings
•Do not use or store the VX-710C in flammable conditions (such as environments containing flammable gases or liquid chemicals). This can damage the flash, start a fire, or cause an electric shock.
•Do not clean the VX-710C with agents containing corrosive or flammable substances such as paint thinner, benzene, or nail polish remover.
•This product is not water resistant. Keep it away from rain, snow, humidity, and general moisture.
•Should the VX-710C sustain physical damage, do not touch any exposed interior metal parts. If touched, they may generate an electric shock or cause a malfunction. Promptly remove the batteries and take the product to an authorized service center for repair.
•If you detect excessive heat, smoke, or a burning smell coming from the flash, immediately stop operation and remove the batteries to prevent the product from igniting or melting. Take the product to an authorized service center for repair.
•Do not drop or otherwise cause a strong physical impact to the VX-710C, as this can cause a malfunction that may cause it to explode or ignite.
•Remove all batteries from the VX-710C before long-term storage in order to prevent the product from igniting or leaking corrosive liquids.
•Do not store or use this product at temperatures above 104°F (40°C).
•Keep the metal contacts in the battery compartment clean and free of corrosion and dirt. Do not touch them with your fingers. Corrosive elements on the contacts can damage the VX-710C and prevent it from functioning properly. Contacts may be cleaned with isopropyl alcohol on a cotton swab.
Warnings | 11
•Dispose of used batteries properly. Never heat them or throw them into a fire, as this can cause the batteries to leak corrosive liquids, generate heat, or explode.
Installing Batteries
The VX-710C can be powered by four AA batteries of several types:
•Lithium (1.5 V)
•Nickel-metal hydride (Ni-MH) (1.2 V)
•Alkaline (1.5 V)
Note: For the fastest recycle times and longest battery life, lithium or Ni-MH batteries are recommended.
To install batteries, make sure the VX-710C is turned off and follow these steps:
1.Press on the battery compartment cover and slide it in the direction of the arrow to open it.
2.Insert batteries in the orientations indicated by the illustrations inside the compartment.
12 | Installing Batteries
3.Close the battery compartment cover by pressing and sliding it into place, in the opposite direction of the arrow on the cover.
1
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When the battery power is low, the low battery indicator (
) will appear on the LCD, the flash ready light will turn red for twenty seconds or longer, and the flash will continuously beep for approximately ten seconds.
Important! Replace all four batteries at the same time. Do not mix battery types or brands, or use old and new batteries together.
Installing Batteries | 13
Mounting the Flash
To mount the flash on your camera, make sure the VX-710C is turned off and follow these steps:
1.Rotate the locking wheel counterclockwise to loosen it.
2.Slide the mounting foot all the way into your camera’s hot shoe.
3.Rotate the locking wheel clockwise until secure.
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14 | Mounting the Flash
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