Compare Canon Eos1d and Sigma SD10

Hello

I took some resolution images from DP Review and put them together in
Photoshop. They are from Canon Eos 1D and Sigma SD 10.

The Sigma was scaled up 180%. It stands up pretty well to the Canon.
It does have curious green/magenta fringing particularly on diagonals.

http://www.btinternet.com/~mike.engles/mike/compare.jpg

It needs to be viewed at 100%.

Mike Engles

 

Yes, the Sigma holds up well, but it appears to have more sharpening.

 

Hello

I did no correction after resize.

Mike Engles

 

The sensor in the sigma will/should always be sharper straight out of the
camera.

 

This was NOT the EOS 1D - it was the 1Ds.

Gary Eickmeier

 

Hello

OK it was the 11Mp camera.I missed out the (s)

Mike Engles

 

'Holds up well'??!?!?

Sure, it's not a mess like a consumer camera would make, but there is a very
noticeable difference between those two shots.

The Canon shot has near-perfect definition, with no noticeable fringing or
artifacts.
The Sigma shot has purple and red halos, and the definition is much lower -
just look at the the edges of the stripes, and the (lack of) definition on
the curved numbers.

Though the OP stated that the Sigma shot has no sharpening, the halos may be
a result of the resizing, which can introduce some sharpening.


But this is not a fair comparison anyway, the 1Ds is in a different league
from the Sigma, and the target favours Bayer sensors over the Foveon anyway.
A fair comparison would be between the Sigma and the 300D/10D, with a
multicoloured target/chart.


Flux

 

It does. The problem is that you're not just buying a sensor. You're
buying a camera. And Canon makes much better cameras than does Sigma.

 

Hello

Here is a link to such a comparison as well as other DSLRs.

http://www.btinternet.com/~mike.engles/mike/compare2.jpg

No sharpening , All resized to Canon 1Ds 4064 pixel wide.
View at 100%

Mike Engles

 

Dont know about you, but I dont go around photographing
target charts with my camera (s)

I actually take pictures of things in real life !























"Only a Gentleman can insult me, and a true Gentleman never will..."

 

Hello

As the say

"Every picture tells a story"

Mike Engles

 

Yes, but Real Life(TM) sometimes includes
product, document and other technical imaging
for which you need to know the limitations of
your sensor.

Sigma/Fovy 10Mp claims are on the edge of fraud, but
they are bringing some attention to the differences
between sensor technologies. Anyone whose digital
imaging experience has heretofore been 36-bit
coincident beam-splitter flatbed scanners is apt
to assume that digital still cameras work sort of
the same way. They don't.

I was looking at the 645 digibacks on Kodak's site
yesterday, and was not terribly surprised that EK
won't even admit that the "16Mp" sensor is a Bayer.
Anyone using it for fashion photography of B&W
geometric fabric patterns really needs to know
that (and then mount the AA filter for such shots).

The effective "Mp" of a Bayer is subject-dependent.
The advertised "Mp" is like an audio "watt" - it
all depends on how you define "define".

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