Hello all,

Since I bought a new lens for my 400D I found myself shooting much more, I never realised that the 18-55 lens was so limiting!
Now, the camera is a tad old. It works well, but I'm mainly disappointed by its performances on low light. I've been thinking of upgrading - either with a 650 or maybe with a 60/70 (I like the focus microadjustment feature, which is only available on the 70D unfortunately) but I am concerned I may not get the quality upgrade I am expecting.
I have seen many samples and reviews and I am still confused. While I may enjoy all the bells and whistles the new models come with, I am mainly looking for an upgrade in picture quality: I'd like to be able to use ISO higher than 400 in low light conditions without beginning to see red pixels all around the picture!

I don't want to upgrade and then realise that there is not much difference. I am not a pro, just an amateur.

Any suggestions appreciated!
Thanks
Tony