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Sigma EF-610 DG ST Electronic Flash for Pentax Digital SLR Cameras

3.9 out of 5 stars 83 customer reviews
| 53 answered questions

Price: $165.00 & FREE Shipping. Details
Only 1 left in stock (more on the way).
Ships from and sold by Amazon.com. Gift-wrap available.
Pentax Digital SLR Cameras
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  • is the most powerful one yet, now offering a Guide number of 61 which translates into 61/m (200/ft)
  • designed to work with the latest TTL auto exposure systems of all the most popular digital and film SLR cameras
  • The auto zoom function automatically sets the optimum illumination angle in accordance with the lens' focal length in a range from 24mm to 105mm
  • Sigma EF-610 DG ST Electronic Flash
4 new from $165.00 1 used from $240.00

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$165.00 & FREE Shipping. Details Only 1 left in stock (more on the way). Ships from and sold by Amazon.com. Gift-wrap available.

Frequently Bought Together

  • Sigma EF-610 DG ST Electronic Flash for Pentax Digital SLR Cameras
  • +
  • Neewer 8"x6"/20x15cm Translucent Softbox for Canon G1 X/600D/1D X/SX40 HS/SX150 IS/60D/550D,Nikon D7000/D5100/ D5000/D3100/D3000/D700/D300,Neewer TT560 TT520 TT660 TT850 TT860 and Other DSLR Flashes
Total price: $173.99
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Technical Details


Product Description

Style: Pentax Digital SLR Cameras

Sigma EF-610 DG ST Electronic Flash for Pentax Digital SLR Cameras

Product Information

Style:Pentax Digital SLR Cameras
Product Dimensions 3.5 x 4.6 x 5.5 inches
Item Weight 8 ounces
Shipping Weight 1.4 pounds (View shipping rates and policies)
ASIN B00472OBCK
Item model number F19109
Batteries 2 AA batteries required.
Customer Reviews
3.9 out of 5 stars 83 customer reviews

3.9 out of 5 stars
Best Sellers Rank #668 in Camera & Photo > Camera & Photo Accessories > Flashes > Shoe Mount Flashes
#8,317 in Camera & Photo > Camera & Photo Accessories > Digital Camera Accessories
Date first available at Amazon.com September 20, 2010

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Customer Questions & Answers

Customer Reviews

Top Customer Reviews

By M. Jorgensen on August 8, 2012
Style Name: Pentax Digital SLR Cameras Verified Purchase
Power is the key feature of a good flash and this one has lots of it. Much better than my Metz flash at about the same price. This is a higher model than the Metz. But it is such a good deal at Amazon'a price.

02/13/13 update:

Very important issue with this flash: There is a built in diffuser that if you pull it out turns off the TTL Feature. The flash becomes manual. I found that out the hard way when I let my wife take some professional photos for me. The diffuser must be pushed all the way back where it must hit a switch. You can't use it with the flash set on TTL.
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Style Name: Nikon Digital SLR Cameras Verified Purchase
I bought this flash instead of Nikon's pricy SB700, and I have absolutelly no regrets. It has a wonderful performance with my D90, and is runs for longer than expected with my rechargeble AA batteries. A perfect choice for a enthusiast with a limited budget.
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Style Name: Sony Digital SLR Cameras Verified Purchase
Work's amazing with my Sony a77. Recycle time is good just don't expect to shoot sports or paparazzi but for the price it's perfect for portrait shooting and for what I need it for which is real estate photography and works better then I expected. Because Sony has an EVF "Electronic View Finder" when you're focusing in low light you can see the beams of infrared assisting the Automatic Focus and it locked on to my subjects instantly. Matched with my Tokina 11-16 it still illuminates the room with the wide angle diffuser on and doesn't leave any dark areas anywhere in the image. I highly recommend this flash and if you've done your homework the Sony HVL-F60M over heats after 40 or so shots and it's $550 although it has amazing features the fact that it overheats so quickly is a no-brainer for me. The TTL on this Sigma EF-610 works awesome and if your still not sure and would like to see other choices check out the Metz 58 AF-2 MZ 58326S this is the next flash on my list to purchase. I've only had this flash for a week now and I'll update this once I've discovered some of it's strengths and weaknesses. Hope this review has helped particularly for the Sony shooters out there seeing as most reviews are aimed towards Canon and Nikon just wanted to assure you this works perfect for your a77 but if that's not the camera you're shooting with then you might want to see if it's compatible.

Edit Oct 16, 2014

Initially I gave this flash 5 stars but the fact that it doesn't work well after a few months of light use I wouldn't recommend these anymore. The TTL is nice but you out grow it quickly and the high or low options just aren't very practical for most shots.
Read more ›
3 Comments 17 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
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Style Name: Pentax Digital SLR Cameras
Love this flash. I can only name two faults with it:
1. It takes literally minutes to initially charge, even with fresh batteries. This is extremely annoying if I just want to grab the camera and take a quick shot.
2. The interface is absolutely atrocious. Each mode has a use but they're unintuitive and the button interface is clunky. I don't expect a touch screen but it'd be nice if we'd progress a bit from 1980s watch designs.

Works perfectly on my K-7. Get some gels and get flashing!
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Style Name: Canon Digital SLR Cameras Verified Purchase
A much cheaper alternative to the 580EX II. I can only assume that the guide numbers are accurate, which would mean it provides a bit more light than the 580. There are a few areas in which it's definitely inferior to Canon flashes, and they're likely to have varying degrees of importance to different people:
* It only has three stopping positions when you tilt it upwards, and the first is maybe 80 degrees; the last is a bit backward.
* The battery compartment door is very poorly designed; it comes off easily and is tricky to replace (it isn't designed to purposely come off, it just does).
* There are only three modes in which it can operate: ETTL II, full power, or 1/16 power
If you're only interested in lots of light straight forward, or angled nearly straight up for bounce, in ETTL II mode, then this is definitely more cost-effective than a Canon flash.
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Style Name: Sigma Digital SLR Cameras Verified Purchase
The EF-610 DG ST works very well with the Sigma DP2 Merrill with the latest firmware update.

I did not want to spend a lot of money on the flash as for me this niche camera with great picture quality is a stop along my journey of photography. I can only practically afford to own one camera at a time. I once suffered from GAS and had an SLR with many lenses and accessories.

There are limitations to this flash that were not clear to me until I read the owner's manual. There are only two manual settings FULL and 1/16. In other words, the button on the back of the flash gives three choices, TTL, MH (FULL) and ML (1/16). Don't get confused: although this flash comes with a flash stand it does NOT have any slave functionality.

Note that you can adjust flash exposure compensation by 2 stops plus or minus in TTL mode. After two stops, the flash's TTL functionality does not appear to work correctly. For me, this is more an observation about the firmware on the camera than a problem I am experiencing.

Final comment, the small EF-140 flash works very well for non-bounced shots, as it is very powerful for its size and could be all you really need. But it is not powerful enough for bounce (with homemade light modifiers) in anything but the smallest rooms, widest apertures and higher ISO's (400).
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