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.
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
1085274
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.
2228078
There are 2 lenses with similar names. The newest is the 18-250 f 3.5-6.3 DC Macro OS HSM. The older lens does not have the MACRO in the name. The newest lens has better Macro capabilities and is smaller and lighter. I got the newest lens and I love it. See www.dpreview.com for a review of the lenses.
727303
Sorry, the Canon lens wont fit. Sigma makes a specific 50mm Macro lens for the Nikon.
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.
1671633
Sorry I don't have an answer for you as I am a Nikon shooter. I would refer you to sigma's own web site, they have a complete compatibility chart.
1762187
I don't know much about digital concepts, I think it is just a generic name. Any step up ring with the 43mm thread will work. (the end that attaches to my lens is 43mm, just to be clear)
1054317
I don't use flash myself, but a Ring Flash would be a good choice for macro work. An Amazon search for 'ring flash' produces several possibilities, ranging from $40 to $400.
902325
The flash unit (which includes the control unit that gets attached to the camera flash mount, the two flash heads and the ring that attaches to the lens), as well as manuals and a storage pouch that fits the unit (it has internal pockets for the lights and main body). As is the flash attaches to the MP-E65 lens. IN order to use it with the 100L Macro or the 180L Macro you need to acquire microlite adapter rings with 67 or 72mm.
1852605
Fits on my Nikon D7100. Unfortunately - don't know so far why - always the integrated flash opens when it's too dark. Ring flash works anyway and integrated flash does not flash at all even after opening up. No idea why that happens - but to answer your question: the ring flash fits on the Nikon D7100.
1003044
I usually do an immense amount of research before purchasing a product because I despise having useless pieces of equipment around me when I could just do the research and purchase once. I absolutely love my Canon 100mm macro lens and have found no need to purchase the Canon ring flash. Unless you have money burning a hole in your pocket I would advise against purchasing a ring flash, plus if you want to experiment, there are a ton of DIY methods of putting together a ring flash just to see if the effect is worth the purchase of a more expensive unit. Another con of the ring flash is that it uses an inordinate amount of power. I like to carry the minimal amount of equipment as often as possible. I'm out in the desert hiking here and there. It gets hot and I want to use all my energy on the nature around me. I don't want to hear the voice in my head that complains of the extra weight of extra batteries, a bulky ring flash etc. I purchased a dedicated regular flash (model doesn't matter, just the best that you can afford) that I can use as a slave to the pop up flash that's on the camera. I find that with a few tweaks on my part, such as using a piece of paper or reflector to bounce color, darkness or lightness onto the subject can do the job I want just as well. Now git out there and use that 100mm macro! What have you been waiting for?!
683373
As far as I know Nikon and Pentax have different designs in terms of their lenses. The Sigma in question is for Nikon DSLR.
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
2103072
I have both. Since getting the Sigma, the nikon is never on my camera. The Sigma is much better and very flexible in my opinion. However, you should get the USB dock for the sigma, so you can update the lens firmware. Not every camera needs it, but in many people's experience it makes all the difference. You probably won't need to do more than just update the latest lens firmware. I love the new sigma ART lenses. Killer sharp, great color rendition. Very nice bokeh. Reasonable price.
1293198
The primary difference between the Canon EF 100 mm f /2.8L IS USM Macro Lens and the Canon EF 100mm f/2.8 USM Macro Lens is the IS. This refers to Image Stabilization. The IS in that lens is good to 4-stops (really probably 2 or 3) meaning it can compensate for the shake in the image from a longer exposure. This is a benefit for macro photography as it allows for a longer exposure with a smaller aperture, allowing for a greater depth of field in your image. You can search for macro photos on Google images and you will notice the small depth of field in most of the photos, which frames the subject well when used correctly, but when it is too small, only a small part of the subject will actually be in focus. Secondarily, the Canon EF 100 mm f /2.8L IS is a "L" or "Luxury" lens. Although partially a marketing gimmick by Canon, this means that the lens will be higher quality, have at least partial weather sealing, have a better outside lens coating, and generally be of higher build quality. As an owner of the less expensive of the two, and having used both, I would recommend buying the cheaper one if you just want to get started in macro photography, and maybe spend some money on extension tubes or a macro flash. If you are still curious about both these lens, I always recommend renting the lens in question before a purchase or going out and finding them in a photography store. I personally use lensrentals.com for my rentals, but there are several excellent renters on the web.
1778509
I don't know about that but this flash is fully manual. It will not monitor anything thru your camera and mine stopped working the 2nd time I turned it on. I would not recommend it. If you want a TTL ring flash that is fully automatic you will have to go for the Canon ring flash, about $500.