Canon 7D

[professorgb]

Well, just so long as it was good wine.

too much wine, perhaps  

[Ray]

Well, just so long as it was good wine.

Isn't life too short to drink anything but good quality wine?  

[ErikKaffehr]

Hi,

The AA filter is always matched to the sensor pitch, so a 18 MP camera has a weaker AA-filter than 10 or 15 MP camera with the same sensor dimensions.

Some writings on the forums (by ejmartin and others) indicate that the sharpness we see on cameras without AA filter may just be an aliasing artifact, if that is the case, the removal of the AA-filter would not have any significant effect with small enough pixel pitch. Increasing the fill factor also reduces the need AA-filtering but also reduces resolution as far as I understand.

Anyway, the difference between 15 and 18 MP is very small, about 10% on a linear scale.

Best regards
Erik

The 15mp of the 50D didn't seem to offer any real advantage over the 12mp cameras, I just don't see the point in an 18mp APS-C camera unless you're going to remove the AA filter.

[headroom]

Made some Screenshots 7D 100% 5D MkII 92 % (=Diagonalfactor Correction 1.6 vs FF )

My personal view:
The 5D dont have a very big advantage in noise. 7D is more detailed, less smeared
Made prints 53cm ( 7D )  and 57.3cm  ( 5D )not a big difference, but 100% Pixelpeeping some.

Left 3200 ISO 7D / Right 6400 5D

Left 6400 ISO 7D / Right 6400 5D

[headroom]

Top  3200 ISO 7D / Bottom 3200 5D ( both from NR Standard)

[fototrotter]

Looks like the colors on the 7D are more pronounced,...
I Received my 7D two days ago and have not had the time to do some serious field work, but I drag the camera along and shoot when Ihave time.

I am very happy with the noise and colors, on picturestyle Neutral,... And overall picture quality.
I don't consider myself pro in any way, but very happy with my "investment"

[georgl]

The pixel pitch of just 4.3µm is problematic regarding noise and especially DR. I don't think in many practical situations the resulting 18MP give a real advantage, especially not in comparison to cameras with more than twice as large sensors. But it reduces the negative affect of the AA-filter because it is weaker and destroys fine detail which isn't resolved by usual lenses anyway. You can downsample the 18MP-files in post in therefore create nice, sharp and alaising-free files with lower size.
AA-filters and fill-rate have nothing to with each other. Sensors without AA-filters don't produce "sharpening artifacts" either, it's the filtered sensors that produce softer images.