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I actually think the 7D has too few pixels, I wish there were more so I can retire my optical TCs.
Romy, weren't you very skeptical of the 7D when you first worked with it?
Actually I'm waiting for f8 autofocus on the 5D3 so I can put an optical TC on my 100-400 and retire my 7D. I certainly intend on doing some testing first.
No. You get the extra resolution at low ISO, and better overall noise at high ISO.
If canon made the 7d 12mp you would get pretty much the same results at ISO 3200 (actually probably poorer) yet not have the additional pixels at ISO 100.
What matters, ultimately, is the overall efficiency of the sensor.
I agree with your last sentence and if you compare the 40D with the 7D using DxO's noise graphs the two cameras are virtually identical with the print (full sensor) setting but the 40D is better at the screen (pixel level) setting. I agree the 7D is better at higher ISOs, that is where the technological gains have been made. It also has better print level dynamic range.
For my use transitioning my 100-400 from the 40D to the 7D and using them equivalently I found more resolution and more noise to go with it. With diligent work and practice I've been able to over come much of that with post processing. But I'm not up to Imagemaster's level yet. The 7D is a much nicer body to use, it just takes more work to get the best out of it.
Edited on Jan 15, 2013 at 02:38 AM · View previous versions