What is the difference between Sigma EM-140 DG Macro Ring Flash for Canon and Sigma EM-140 DG Macro Ring Flash for Nikon,
237935
The flash systems are technically identical but each system will only work with automatic settings with the electronics of the specified camera brands -- TTL. ETTL metering is camera brand dependent so a sigma ring flash made for a canon camera will not operate with the TTL settings on a Nikon Camera and the converse is also true -- This is a great ring flash but you must buy for the designated camera system to be able to take advantage of the automatic electronic systems. RS
237936
The nikon version supports i-TTL/D-TTL (where metering is done through the camera system), while the canon version supports E-TTL (Evaluative through the Lens exposure) II. Copy and paste the following link for a better explanation: http://photonotes.org/articles/eos-flash/. It's probably a proprietary software difference in the exposure calculations, but from what I understand the ringlights are otherwise identical, albeit probably not interchangeable.
237937
An external flash must "communicate" with the camera to which it is attached to fire properly. One of these is configured to operate with certain Canon cameras, and the other is configured to operate with certain Nikon cameras.
2082057
Please choose this one Meike® MK-14EXT Macro TTL ring flash for Nikon i-TTL with LED AF assist lamp
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Can not.PA-PTTL PENTAX ELECTRONIC FLASH MACRO EM-140 DGIs required to be.https://www.sigma-photo.co.jp/english/flash_and_accessory/flash/flash_140dg_match.html
160523
I wasn't aware Sigma made this same lens in a "macro" version? Becarefull believing the discriptions as some "used" products are misrepresented. Any how, macro will allow for a shorter minimum focus distance. Good luck
1780048
The difference is the price. Anything made by Canon or Nikon is way more pricy. These units are extremly easy to use, you can fire one or two flashes at the same time. I have purchase about 6 of these units for my students and everyone warks right out of the box.
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I have Sigma 150-500 for Canon. It works great with Sigma Teleconverter AF 2x DG using Canon 5D MK III, 70D, T3, and T5 with Manual Exposure or Auto without 2x.
827134
Both lenses share the same drawback: There's no constant aperture throughout the zoom range. This is a bummer if you want to zoom in during lowlight situations, because the aperture gets smaller the more you zoom. That said, the Sigma lens is certainly a step up. It's aperture is wider than the kit lens, so it performs better in dim light. And I'm surprised by how much I've enjoyed the macro feature. When I shoot videos of my kids, they run right up to the camera and I can keep them in focus no matter how close they get.I've had the Sigma for about a year and it's on my camera all the time. If you can get one for a good price, I'd say go for it. Both lenses share the same drawback: There's no constant aperture throughout the zoom range. This is a bummer if you want to zoom in during lowlight situations, because the aperture gets smaller the more you zoom. That said, the Sigma lens is certainly a step up. It's aperture is wider than the kit lens, so it performs better in dim light. And I'm surprised by how much I've enjoyed the macro feature. When I shoot videos of my kids, they run right up to the camera and I can keep them in focus no matter how close they get.I've had the Sigma for about a year and it's on... » Read More Both lenses share the same drawback: There's no constant aperture throughout the zoom range. This is a bummer if you want to zoom in during lowlight situations, because the aperture gets smaller the more you zoom. That said, the Sigma lens is certainly a step up. It's aperture is wider than the kit lens, so it performs better in dim light. And I'm surprised by how much I've enjoyed the macro feature. When I shoot videos of my kids, they run right up to the camera and I can keep them in focus no matter how close they get.I've had the Sigma for about a year and it's on my camera all the time. If you can get one for a good price, I'd say go for it. « Show Less
171954
I believe Sigma makes a Canon version of this lens, but if you're looking at this particular ad, then you are looking at a Nikon mount and -NOT- Canon.
19871
Hi Michael, for some reason I've returned this item...Not because of having any trouble! I've decided to but real macro lens instead of using something like that just because of quality of the image with the Nikon macro lenses. Sorry
2014190
I just bought this for my D80. It works perfectly fine. If you zoom in to the max then the built-in flash will cast a shadow (the lens itself is in the way) because you are so close to the object, in that case you need external lighting. No other 'issues' (this will happen regardless of what macrolens you use, so it isnt really an issue) that I have seen, great lens.
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Flash has a clip that attaches on the top of the lens. It can be used with Canon 100mm (filter must be removed) or 60mm Macro (filter can be attached) without adaptor but if you want to use it with Canon 180mm Macro (or any other lens) you will need adaptor.
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Best for macro. Use speedlight for other shots. Ring flash can produce "halo" for other than macro.
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Have you tried holding your macro in reverse against the camera to see the effect on magnification and to be sure it is what you want? If not suggest you do that first. Reverse rings come in different thread sizes for different lenses. Make sure you get the right size. You won't harm your expensive lens. If you do decide to get a reverse ring, make sure it is secure on the lens itsself, but don't turn it too tightly when you are attaching the lens with reverse ring to the camera body. It is difficult to undo. Hope this helps.
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I use this on my 5d and 60d with the 580ex2. I have had no issue with this ring flash. The clear plastic does seem a little more flimsy than I was expecting but works without issue.
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D is a Nikon designator that deals with how the autofocus system works. Specifically supplying distance which helps the camera determine the proper amount of fill flash with a speedlight. If the retailer says this isn't the D type, it probably means that it is an older version of the same lens.Also, the forum you asked this question in sends your question to people who have purchased this specific lens through amazon, not directly to the retailer.
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The one I bought (and it works well) was the Canon version. There is a Nikon version at Phottix PH89057 Odin TTL Flash Trigger Receiver for Nikon - 2 Pack (Black) The reviews there are good, in my opinion. I've got no specific knowledge of your camera.
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I would love to hear about a review of this sigma vs the canon flashes. as i have a sx20 and i need a large flash for large dim rooms.