Well - I just so happen to have a full res jpg that shows the phenomenon well:
What phenomenon? I don't see any noise in that photo. I have to zoom to 100% to detect a tiny unevenness to the pixels in the sky. jrista already covered the science behind this. I'm going to be more practical in my response. If this is what you're talking about...this "phenomenon" which would never be perceptible even in a 36" print...then it's eliminated with a single NR pass (Noise Ninja, 7D profile, auto settings except for turning down sharpening) without any
loss of detail in the rest of the image.
I am NOT mismanaging anything.
You're just purposely getting yourself worked up over absolutely nothing.
And please don't come at me with "but it won't show up in a 24" print!". I can clearly see the noise on my 30" monitor (2560x1600) at work where I use my photos as my desktop background...
I can't see anything wrong on my calibrated monitor. Sorry.
What are you trying to prove with that statement? Why do you think ~ISO 400 noise is acceptable at 100?
Are you kidding me? A 3 year old crop sensor has the same measured noise at 100 that Nikon's just released $7,000 full frame flagship has at 400...and you think that's bad performance?
The point...which was quite obvious...is that no one complains about the D4 at ISO 400, and no one hesitates to use it there. If the 7D were so awful at 100, then the D4 couldn't compete or sell at all since it would be awful by 400.
Ummm... that's exactly what I'm saying. I've been linking to this review quite a bit but I'll do it again:
Don't bother. I'm not going to hold that review higher than DPReview or IR reviews. I don't see the controlled conditions that are necessary to properly evaluate this.
I went over to the Imaging Resource and compared the Still Life scene for the 7D at ISO 100 and tried to find the ISO setting for the D600 that most closely matched. To me, it was in-between 400 and 800... just like I said a bit ago.
This is the most ridiculous thing you've said. I can't find any difference in noise between them at 100. In both images the only texture in the shadow by the cup is the paint on the wall. I can't find noise any where.
What is wrong with your monitor?
This is a systemic problem with Canon. They simply do not care about LOW ISO performance.
Says who? An ISO hypochondriac?
Really? The 7D was introduced in mid 2009. That exact same sensor has also been used in:
2010: 550D and 60D
2012: 650D and 60Da (with slightly different filtering)
How is that not "recycling and selling of old tech"?
And Nikon is still using the D7000 sensor. These things cost quite a bit to design and fabricate. They aren't changed every 6 months by anyone in the industry.
The 1DX sensor is brand new, and the 5D3 sensor is upgraded. There's rumors of a new 46 MP sensor, and we will soon see a new APS-C sensor. Canon's not sitting still.
1. If this is really THE problem and Canon really cared they would license that patent from Sony.
No, they wouldn't. It all depends on what Sony wants in exchange.
2. If this is really the problem and Canon really cared they would have put the R&D effort in and come up with the advancement first.
Who told you that money always means a company will innovate first? In what fantasy world does this happen?
3. Why, in 3 years has Canon not come up with a better idea?
Because there are only so many ways to read data off a chip.
Also, I love how you first say "there is no problem" and then simultaneously blame a Sony patent for the problem. You can't have it both ways. Do Canon sensors have more noise or not?
I can have it both ways. They have more noise at high ISO in many (not all) cases, but it's not so much more as to be a problem.
Apologist at work.
Hypochondriac at work. I'm sorry, but I've personally known people like you, and I don't have a high tolerance for this. I know a guy that would find a reason to complain if you gave him a brand new Corvette ZR-1. I hate that nonsense. You're looking for a problem that's not there because somebody told you a bigger chip was better. Since you will find a problem whether it's there or not...go buy a bigger chip and enjoy it. But don't lecture the rest of us on IQ.