mikegreenwald Loc: Illinois

Without knowing what other kinds of photography you do, it is impossible to make a recommendation. Can you use supplemental lighting in low light situations? Do you need very high resolution for large prints? Might two cameras be appropriate for different situations? Can you afford a faster lens?
All those answers impact the choice of camera. I find my 1DsMk3 plus 5D adequate for all my needs; that does not mean they will meet your particular needs.

jimmya Loc: Phoenix

I would agree with one of the replies that changing camera bodies won't help at all... it's all about your lenses. You need an f/stop of probably 1.8 or even 1.4 for such indoor settings. The one Canon lenses that I can think of is the
50mm. It's very fast and may of be great help.

CurreyPhoto Loc: Reddick, Florida

Does it have better high ISO than the 1Dx? Burst rate is important, too. The 1Dx will do 12fps. Then, of course there is the cost factor. Lots of stuff to consider.

jeep_daddy Loc: Prescott AZ

If you are making enough money to make it worth the upgrade to a 1DX then go for it. If not then I'd go with the 5D MkIII. 6fps isn't really that bad. It will change your shooting habits a bit by making you a bit more cautious and selective about your photography. Horses don't really move as fast as a bird so I don't think you will have any problems at all with a 5D.

PNagy Loc: Missouri City, Texas

Because I felt that the capabilities had not yet evolved to justify the cost, I resisted buying any of the 1D cameras until the 1DX. I think the 1DX will be a very good camera for a long time to come. It particularly overcomes the problems about which you complain; bad performance in low light. Its autofocus is also much better, leaving you with far fewer badly exposed shots. Go for it, and write it off as a business expense.

albe Loc: Bonny Scotland

If your business is growing and you need the new camera, go for it!

barry.lapoint Loc: Colorado

I've been using the 1Dx ever since it first came out. I replaced a 1D Mark 3. It is about the same frame rate (12 fps) as the Mark 3 (10 fps) with almost twice the resolution and spectacular focusing capabilities. The auto/servo in this 1Dx is a fine example of advanced technology. Very quick, and many ways to customize what you choose to lock on and what you choose to ignore.

SharpShooter Loc: NorCal

Curry, you right about the DoF, but at a little more distance the wide open shots are less problematic than at close range. And killing those backgrounds my not be such a bad thing. I don't know if they are important since I'm not a horse person. Perhaps the venue is important. But just the horse, head to tail, could be nice, at least photographically speaking.
Either way, I think Magic is getting some useful food for thought.

wylie Loc: Canada

There's just nothing like hearing a Nikon owner who needs MORE moving to the Canon (dark) side. I have a relatively new 5D Mark III and I wish I would have had the gonads to go for the 1DX. This level of technology is just a bit out of our world!!! Go for it!!!!!

CurreyPhoto Loc: Reddick, Florida

About whom are you speaking?

speters Loc: Grangeville/Idaho

The 1DX should handle anything you throw at it. Wonderful low-light capabilities, really fast frame rate are just a few of the "bonuses", but any full frame camera should have better noise handling than one with a cropped sensor. The only thing I hate about the 1DX is the price.

magicunicorn Loc: Melbourne Australia

Thank you everyone i guess i am going to have to save harder now .... i want my 1DX even more.... thank you everyone youare all fantastic

Jer Loc: Mesa, Arizona

I could really use some of the features in the 1Dx but it's twice as expensive as my 5dm3. I have the same focusing system and it's more sensitive that the 5dm2 but not that of the 1Dx but I have a little better resolution. The 1dx has the voice feature, more fps, and better weather proofing. The 5dm3 is smaller and lighter and good weatherproofing. I can buy two 5dm3's for the price of one 1Dx or I could buy a 5dm3 and a couple of lens.
Just because it's the neatest toy in the box, doesn't mean you should buy it.
I don't care if you buy it but consider all the factors, such as buying good "L" series lens which aren't cheap which you should get for the 5dm3 anyway but you are saving 3,000 dollars. That money could be used to buy some awesome lens.
Just consider all the factors including the type of photography you are using the camera for.
Also, remember camera technology is constantly being updated. There is even a rumor that a new Canon with higher pixels is on the horizon. I have many of my photo on the walls in my home. It is exceptionally difficult to tell which of them are taken with want of he five cameras I used to take them. The only hint would be the super low light would have to be taken by one of my 5d's.
Good luck and I know you'll be happy with whatever you get.

nick1984 Loc: Spokane

I used to have 20d,5dm2,5dm3, but I can't compare them to my 1dx. It's simply the best at every category! If you can afford it go for it! You will LOVE IT!!!

xzoup Loc: Arkansas

I also use a 5Dm3 which is very good in low light, that combined with a 2.8L lens I would think would stop just about anything in its tracks. I also use a 7D and even with the higher shutter speed I have to fight it in low light situations. I would suggest renting a few cameras to test out before you spend your money.