sharod wrote in post #17297269
Just what the title suggests!!!
Want to stay with a crop camera.
I have a T4i. I enjoy that camera, but am researching an upgrade.
Budget???
What I shoot. People, landscapes, action, anything really.
I have been considering the 70D, and salivating over the 7DMII, and the thread dedicated to it

. I'm not sure if I would be in over my head with the latter.
Just looking for opinions from folks who can give me some good advice!
Heya,
The T4i has pretty decent ISO handling ability. ISO 3200 is easily useable. ISO 6400 with some clean up. ISO 12800 is mostly just for "I need the shot anyways." But 1600~3200 is totally doable. Less than that doesn't even need clean up. It's a pretty good sensor all things considered.
The 70D is maybe just under 1 stop better in ISO. That's not really a significant leap. You have to consider that there's more to ISO than performance, there's also the "look." Some ISO patterns are nicer and more tolerable. Some are more obvious and obnoxious. Look at examples to figure that part out as it's fairly preferential. The 7D2 is pretty close to this too, while again a total upgrade, it may not be significant enough in ISO for your needs.
Ultimately if you want really high ISO performance, there's the 6D. Or a non-Canon.
Instead of looking for an upgrade, instead, look to improve understanding of your tool & craft. High quality ISO is not a big deal if you expose properly. Underexposed, high ISO shows up really badly. Focus on never underexposing and you'll notice you can use higher ISO no problem. Also, improve your post processing of noise, you can get away with several stops of ISO higher than your comfort zone likely if you just learn to process it differently from RAW (see TeamSpeed, he's an ISO processing guru; search him). The image quality and AF and stuff of your T4i is plenty good. You're not going to get much of an upgrade from a newer crop. Even the 7D2, while better, is not significantly better (IQ wise; AF wise yes it's a huge tier better).
Shooting landscape, a new crop will do zero in this department.
Shooting people, well, again, a new crop will not offer much of anything.
Shooting action, well, a better AF system will help, but really, unless you're shooting extreme action, I'm willing to bet you can simply learn to use your current AF system better and get the results you want.
Shooting action is more than just the camera; having a lens that focuses as fast as it's told is a big deal. Your current lenses are not super fast at focusing. Try a USM prime or zoom for action and you'll feel like you have a whole new system (eg; 70-200 F4L, 85 F1.8, 200 F2.8L, etc).
You honestly could use better glass before a newer body based on what you have and just talking about "general" shooting.
I can shoot birds in flight with a T4i, so I imagine you can simply learn to use your camera better. Not that this is a cop out. I'm honestly just trying to save you money. Something tells me that you are not surpassing your cameras abilities, but vise verse.
Don't let the holiday sales make you think you have to buy stuff. 
Very best,