mwsilver wrote in post #16577464
Have to disagree with you on that one. I have a 60D and have spent a lot of time with a friend's 70D lately. With the 70D I was able to get images with surprisingly low noise at ISO 6400. With the 60D ISO 6400 images are, for the most part, way too noisy to use. Further the 70D ISO 6400 images had much less noise than my 60D at 3200 and were not much noisier than the 60D as 1600! That's the better part of two stops improvement in sensitivity which is not slight IMHO. The better sensor with greatly improved ISO sensitivity, the MFA feature, the much improved Live View and the 19 point focusing system are just some of the many enhancement to the 70D. For some it would be a pricey but worthwhile upgrade and the prices will lightly fall a bit in the next 6-12 months. I'm not upgrading any time soon since I waiting for a 7D II which I hope will be released this Spring.
Mark, I'm sure Palad1n meant the difference is small in RAW, and he's right in that sense. A bit less noise and better noise characteristics. This also mirrors my experience and I've shared my results in a few topics here on the forum.
But in jpeg, yes the difference is big (due to 4 years of advances in processing speed and NR algorithms). But I'd say the majority of people shoot RAW (or at least RAW +jpeg) here for the best quality and flexible files. But yes, I also welcome the nice jpeg files from the 70D, they look really good at higher ISOs, much better than 7D or 60D.
(For the record I've owned the 60D, as well as T2i, T3i, T4i, and 7D, all of them featuring the 18mp Canon sensor, currently own the 7D and 70D. I've performed a ton of extremely controlled comparison tests between my 7D and 70D also and the results fit Palad1n's description.)