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Sigma Photo EF-610 DG ST Flash

External flash unit for DSLR cameras (Sigma-compatible)

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  • Sigma Photo EF-610 DG ST Flash

    Front (Sigma-compatible)

Item #: 366F19SA
 
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Our take on the Sigma Photo EF-610 DG ST Flash

by Woody Sherman
Sigma Photo

Power and poise

Powerful, portable, and full-featured, the Sigma EF-610 ST is made to give you flexible options when your shooting situation demands lighting support. For starters, check out the autozoom function, which provides the perfect coverage angle for the focal length of your lens, from 24-105mm. For bounce-flash effects, you can rotate the flash head up and to the right by as much as 90 degrees, or left by 180 degrees, and even down by 7 degrees.

Works hand-in-hand with your camera

The EF-610 ST is designed to work in concert with your camera's exposure system, so that you can achieve the perfect exposure for your subject automatically, without having to fuss with settings. Manual settings allow you to adjust the flash power to two levels — full and 1/16 power.

Designed for the thinking photographer

Check out these thoughtful features: there's a "catch light," which introduces a sparkle in the pupils of your subject while using the flash head in bounce mode. An autofocus auxiliary light helps improve autofocus performance in low light. And an auto-off function shuts down the unit after it remains idle for a designated time, helping conserve your battery power.

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Highlights:

  • compatible with Sigma DSLR cameras
  • i-TTL (intelligent through-the-lens) flash exposure control
  • powerful 61 guide number (200 feet) with zoom head at 105mm
  • autozoom function sets optimum illumination angle in accordance with lens's focal length
    • adjustable from 24-105mm
  • autofocus auxiliary light assists focus in low-light situations
  • manual settings allow flash power to set to two levels: full, and 1/16 power
  • tilt and swivel flash head (tilts up to 90 degrees or down to -7 degrees, and rotates horizontally 180 degrees to the left, 90 degrees to the right)
  • catch-light panel creates a sparkle eye reflection when using flash as bounce light
  • uses 4 "AA" batteries (not included)
  • weight: 11.3 oz. (without batteries)
  • 3-1/16"W x 5-1/2"H x 3-3/4"D
  • warranty: 1 year
  • Our 60-day money-back guarantee
Supplied Accessories:
  • carry case
  • flash stand

Hands-on research from the Crutchfield Labs (what are the Labs?)

Product Research
What's in the box?

Download owner's manual

  • EF-610 DG ST electronic flash for Sigma
  • FS-11 Flash stand
  • Carrying case
  • Warranty Card
  • Limited Warranty sheet

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team — they open the box, verify contents, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

Features
Specifications
Dimensions

Features

Overview: The Sigma EF-610 DG ST is a powerful flash with lots of features that you don't get with the camera's built-in flash. It is designed to work with the latest TTL auto-exposure systems of all the most popular digital and film SLR cameras. The head can tilt up and swivel in both directions, so you can bounce the flash in any direction. The flash is compatible with Sigma SD1 DSLR, as well as the DP1 and DP2 cameras.

Shoe Mount: The Sigma EF-610 DG ST flash mounts to the accessory shoe on the top of your compatible Sigma camera. Flash trigger, exposure setting, and focal length (zoom) setting are transferred to the flash via the hot shoe.

Flash Stand: The flash comes with a stand for storing when not in use.

Variable Angle: The firing direction of the flash is adjustable. The vertical angle ranges from 0° (straight forward) to 90° (straight up) with stops at 60° and 75°. You can also tilt the head downward to 7° for close-up photography. The horizontal angle is 90° to the right (stops at 60° and 75°) and 180° to the left (stops at 60°, 75°, 90°, 120°, and 150°) for a total range of 270°.

Flash Coverage: The flash coverage is automatically set to match the lens focal length from 24 mm to 105 mm. When the built-in wide panel on the flash is engaged, the coverage will cover the angle of ultra wide-angle lenses as short as 17 mm.

Manual Flash: You can set the flash output to Manual H or Manual L allowing you to set the flash power from full to 1/16.

Custom Functions: You can customize the Speedlite features to suit your  preferences. You have Six flash custom functions built into the Sigma EF-610 DG ST (set on rear LCD panel).

Batteries: The Sigma EF-610 DG ST flash uses 4 AA batteries. Alkaline, Nickel-Cadmium (NiCd) rechargeable, or Nickel Metal Hydride (Ni-MH) rechargeable batteries are recommended. Charging time is approximately 7 seconds with alkaline batteries, and approximately 5 seconds with NiCd or Ni-MH batteries. The number of flashes are approximately 120 with alkaline, and approximately 160 with NiCd or Ni-MH.

Auto Power Off: To save battery power, the power will turn off automatically after a certain period of time of idle use.

Case: The included case houses and protects the Sigma EF-610 DG ST flash. There is also a small pocket inside the case, where you can store the included flash stand. The case has a flap with a hook-and-loop closure.

Specifications

Guide Number:

Zoom 24mm 28mm 35mm 50mm 70mm 85mm 105mm
Guide Number (meters) 34 35 36 46 52 56 61
Guide Number (feet) 112 115 118 151 171 184 200

Dimensions

Flash Dimensions: Because the flash angle is hinged for up/down adjustment and pivots for left/right adjustment, all three dimensions vary as follows:

  • Width: 3.0017" to 4.531"
  • Height: 5.5" to 7.603"
  • Depth: 2.095" to 3.75"

Weight: 11.3 oz. (without batteries)

 
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1 question already asked

Does this flash work on a Canon Rebel XTI DSLR, and how dependable is it? [ Glenn  Feb 15, 2014 ]
1 answer
  • We have not received any answers from other customers on your question. I would recommend reaching out to an Advisor by phone (1-800-324-9695) or online chat. They should be able to help answer your question. [ Jeff Staff  Feb 21, 2014 ]

For a more in-depth review and enhanced detailed information on the Sigma Photo EF-610 DG ST Flash, please visit the Crutchfield website product page (/ISEO-rccbcspd/p_366F19SA/Sigma-Photo-EF-610-DG-ST-Flash-Sigma-compatible.html ).

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