EF-GS - Flash Drive Vello - Free user manual and instructions
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| Product Type | Flash Unit |
| Model | EF-GS |
| Brand | Vello |
| Guide Number | Approx. 36 (ISO 100, meters) |
| Power Source | 4x AA batteries (alkaline or NiMH) |
| Recycling Time | Approx. 4 seconds with fresh alkaline |
| Number of Flashes | Approx. 200 per set of alkaline batteries |
| Flash Modes | TTL, Manual, Multi flash |
| Zoom Range | 24-105mm (auto and manual) |
| Swivel / Tilt | Up to 90° tilt, 270° swivel |
| Dimensions (W x H x D) | Approx. 72 x 120 x 100 mm |
| Weight (without batteries) | Approx. 300 g |
| Wireless Slave Mode | Optical slave (S1/S2) |
| Exposure Control | TTL with compatible cameras, manual power ratio (1/1 to 1/128) |
| Maintenance | Clean with dry cloth, remove batteries if not used for long periods |
| Safety | Do not fire near eyes; avoid water and high temperatures |
| Spare Parts / Repairability | Contact Vello support for service; replaceable flash tube and battery compartment |
| General Information | Compact flash unit suitable for entry-level to mid-range DSLRs |
Frequently Asked Questions - EF-GS Vello
What batteries does the Vello EF-GS flash use?
The Vello EF-GS uses 4 AA batteries, either alkaline or NiMH rechargeable.
How do I reset the flash to factory settings?
Press and hold the Mode button for about 3 seconds until the display resets.
What does the S1/S2 slave mode do?
S1 mode fires the flash when it detects another flash firing; S2 mode ignores pre-flashes and fires on the main flash.
Can I use this flash with any camera?
It is designed for Canon DSLRs with a hotshoe (TTL compatible), but can be used in manual mode with other cameras via sync cord.
What is the maximum flash range?
At ISO 100 and f/2.8, the maximum effective range is about 10 meters.
How do I clean the flash unit?
Use a soft, dry cloth to wipe the exterior. Do not use any liquids or cleaners.
Why is the flash not firing?
Ensure batteries are inserted correctly and charged. Check that the flash is firmly attached to the camera and powered on. Also, the flash may need to recycle.
Does the flash have a modeling light?
No, the Vello EF-GS does not have a built-in modeling light.
Is the flash head zoomable?
Yes, the flash head can zoom automatically or manually from 24mm to 105mm.
What does the 'M' mode do?
In Manual (M) mode, you can set the power output from full (1/1) to 1/128 power in 1-stop increments.
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USER MANUAL EF-GS Vello
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Product information
Brand : Vello
Model : EF-GS
Category : Flash Drive