Bolt VC-310C Compact On-Camera TTL Flash for Canon Cameras

BH #BOVC310C • MFR #VC-310C
Bolt
Bolt VC-310C Compact On-Camera TTL Flash for Canon Cameras
Key Features
  • Compatible with Canon E-TTL / E-TTL II
  • Guide Number: 105' at ISO 100
  • Coverage: 28mm (17mm with Diffuser)
  • Tilts from -7 to 90°
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Compact and very capable, the VC-310C Compact On-Camera TTL Flash from Bolt is fully compatible with Canon's E-TTL / E-TTL II system and offers a plethora of features for advanced on- and off-camera flash photography. The relatively small unit has a guide number of 105' at ISO 100 for easily illuminating a range of subjects as well as coverage for 28mm lenses on full frame cameras or 18mm on APS-C cameras. The included diffuser can soften the output of the flash while increasing the coverage to 17mm on full frame or 12mm on APS-C. For bounce capabilities the VC-310C can tilt from -7 to 90° and rotate left 60° and right 90° for more flattering lighting than provided by direct flash.
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Bolt VC-310C Overview

Compact and very capable, the VC-310C Compact On-Camera TTL Flash from Bolt is fully compatible with Canon's E-TTL / E-TTL II system and offers a plethora of features for advanced on- and off-camera flash photography. The relatively small unit has a guide number of 105' at ISO 100 for easily illuminating a range of subjects as well as coverage for 28mm lenses on full frame cameras or 18mm on APS-C cameras. The included diffuser can soften the output of the flash while increasing the coverage to 17mm on full frame or 12mm on APS-C. For bounce capabilities the VC-310C can tilt from -7 to 90° and rotate left 60° and right 90° for more flattering lighting than provided by direct flash.

Another feature of the VC-310C is the ability to use LED lights to preview lighting and as a focus assist. This model can be used as a wireless master or slave with full TTL support in each mode. Stroboscopic mode is available for creative effects requiring multiple flashes during a single exposure for numerous possibilities. The ability to accept firmware updates via a Micro-USB port ensures compatibility in the rapidly changing digital landscape.

Coverage for 28mm lenses on full frame or 18mm on APS-C, when the diffuser is used it expands coverage to 17mm on full frame or 12mm on APS-C
Manual power settings are available with settings from 1/1 to 1/128
Recycle time of about 5 seconds at full power
Backlit LCD screen
Modeling flash setting will fire a burst of flashes for a preview of lighting
Flash exposure compensation from -3 to +3 EV in 1/3 EV steps
Second curtain sync setting allows flash to fire at the end of exposure for more advanced lighting techniques

Bolt VC-310C Specs

Flash Head
Guide Number104.99' / 32 m at ISO 100
CoverageFull-Frame
28 mm
17 mm (with Wide-Angle Adapter)
Bounce Head-7 to +90°
Swivel Head150°
Recycle TimeApprox. 5 Seconds
Secondary IlluminationModeling Light
Exposure Control
Exposure ControlCanon E-TTL / E-TTL II, Manual
Flash ModesSecond-Curtain Sync, Stroboscopic
Power Range1/1 to 1/128
Flash Compensation-3 to +3 EV (1/3 EV Steps)
Wireless
Wireless OperationOptical Pulse (TTL/Manual)
Up to 49.21' / 15 m (Master, Slave)
Wireless Channels4
Wireless Groups3
Remote Timing ModesInstant Sync
Skip Preflash
Power
Internal Power2 x AA (Alkaline, Lithium, NiMH)
External Power Pack CompatibleNo
General
MountShoe
Off-Camera TerminalNone
Dimensions (W x H x D)4.5 x 2.5 x 1.4" / 11.4 x 6.4 x 3.5 cm
Weight5.29 oz / 150 g (without Batteries)
Packaging Info
Package Weight1 lb
Box Dimensions (LxWxH)8.11 x 4.409 x 2.441"
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question

Does it support S1 and S2 ?
Asked by: paul
IF IT MEANS SYNC WITH FIRST AND SECOND COURTAINS, YES IT DOES
Answered by: Jose L.
Date published: 2018-08-26

question

Can this flash be used with a wireless transmitter and receiver kit? For example, I am looking at purchasing the Vello FreeWave E-TTL transmitter and receiver with the transmitter on my camera and this flash attached to the receiver.
Asked by: Jonathan C.
I did not try it,I use it as regular flash with TTL or as a slave to another flash to avoid shadows.
Answered by: giora dov d.
Date published: 2018-08-26

question

Can you trigger an off camera speedlite with this flash mounted on 6d2 as you'd do with 80D built in flash?
Asked by: Mam S.
This flash operates as an optical slave only.
Answered by: Donald W.
Date published: 2018-08-26

question

Does a large lens block part of this flash when used? When using a pop up camera flash on larger lens the lens cast a shadow over a portion of the frame. I use a 24-105 f4 lens that has caused this issue before. Does this flash sit high enough to prevent that.
Asked by: Colin S.
Also wondering the same thing. I have an 18-400mm lens. I don't want a huge flash, but I also don't want a smaller flash causing lens shadow.
Answered by: Evan C.
Date published: 2018-08-26

question

Is this flash usefull to be used in full manual mode?
Asked by: Valdivieso Laso R.
Yes. The Bolt VC-310C Compact On-Camera TTL Flash for Canon Cameras may be used in both E-TTL II automatic flash exposure mode and full manual mode and allows you to set the flash output from 1/1 full power to 1/128th flash output power.
Answered by: Manzell L.
Date published: 2019-05-21

question

To work in wireless TTL mode, its necessary another Bolt on top of the camera or pop-up or my 430-exII can be used as transmitter?
Asked by: Pedro O.
The flash can be used off camera or on the camera as a master. To use the flash off camera your cameras pop up flash needs to be able to be set to master.If it does not you need a transmitter or another flash that can be set to master on the camera.The 430 ex II flash can be off camera but is not a master so cannot be used to set off the Bolt flash. But the Bolt flash can be set on the camera to set off the 430ex II off camera.
Answered by: Robert K.
Date published: 2018-08-26
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