D-SLR Sensor Resolution and Sensor Size Comparison Size Matters!

Hey Dilbert, here something really funny... Foveon's 16MP prototype
was monochromatic, it had 16M monochromatic sensors arranged in a 2D
pattern. You would have to classify it as 16 full color MPs, because
you could put a color mosiac in front of it.

Now that is truly hillarious.

 

The "advantage" of a smaller sensor is that it is shooting through the
part of the lens with the least aberration. Of course you're paying a
big price for this, because the smaller the sensor, the larger the
crop factor. So if you really want wide angle, you'd have to go to say
a 12-20 lens, rather than say a 17-35, which be prohibitively
expensive.

The reason why the professional cameras use full-frame sensors is
because the pros won't put up with these crop factors. They already
know about the issues at the edges, and compensate for them, the CA
problem is not unique to digital.

Canon EOS-1D Mark II is a compromise for a lower cost camera, but
nothing like the compromises on the Sigma SD10 or the Olympus E1, both
solidly in the consumer D-SLR category.

If there is a good thing about the smaller sensors, it's that you can
use lower quality lenses with less problems, which of course is a good
thing for consumer level cameras. Olympus and Sigma don't have any
professional grade lenses, so don't expect full frame D-SLRs from
either of them.

Sigma is building a new model with a full frame 13.5Mp Kodak sensor,
but it uses the Canon lens mount, so you can use the professional
Canon L lenses. This is being sold by Kodak as the DCS-SLR/c. It has
potential, and it's much less than the EOS-1Ds, but the Nikon version
had noise issues at higher ISO settings. It's a good strategy for
Kodak, especially for studio photographers who generally have been
using either Canon or Nikon film cameras, and for studio photographers
who were using the original Foveon studio camera (Canon mount). In a
studio, you're generally not shooting at higher ISO settings anyway,
and the Kodak DCS/c is about 1/2 the price of a Canon EOS-1Ds.

 

Not only that. If a sensor is 1/K the size of the 35 frame, you need to
enlarge the image you get by an additional factor of K to get the same
size print, which means that the lens resolution *also* needs to be a
factor of K better just to keep the print resolution the same. Thus
the center of the image needs to be quite a bit sharper than the edges
for this to even break even.

Dave

 

You didn't know that shooting center glass was better? Why do you
guys post here? Is there no Bayer user with any knowledge of
photography?

I've posted hundreds, isn't that enough?

 

I can say that again.

 

Talking to yourself? Why?

Bart

 

Why does Sigma not know that the sd9 is a 13.72 mega pixel camera?
Why is it that we sigma and everyone but you think that the sd9 is a
3.43 mega pixel camera? Could it be that you are clueless?

<http://www.sigmaphoto.com/html/Cameras_sd9.htm>

 

The Bayer sensor in the Digital Rebel has 6.3 million effective
pixels.

<http://www.canoneos.com/digitalrebel/specs/index.html>

The Foveon sensor in the sd9 has 3.43 million effective pixels.

<http://www.sigmaphoto.com/html/Cameras_sd9.htm>

Buy a clue. Steal a clue. Borrow and clue. Copy a clue. Make a
clue. Whatever you do, George, GET A CLUE.

To get 13.73 mega pixels from the sd9, the image has to be
interpolated.

 

You are terrified to touch this subject, it so clearly proves you've
been wrong from the start. I'll say it again...

Foveon's prototype 16MP fully monochrome sensor would have been called
a "full color 16MP" sensor by Bayer DSLR manufacturers--simply because
they would place a plastic mosiac filter in front of it to block 67%
of the light.

 

In message <>,

No, it would be called a color *camera* if it had a CFA over it.

First of all, they don't block that much light. Secondly, your beloved
SD9 blocks 70% of the light by not having microlenses. This is worse
than losing light quantity; you are losing spatial information, not just
sensitivity.
--

 

Apparently, reading comprehension is still a challenge to you.

The question was why are you talking to yourself? You seem to be developing
a Multiple Personality Disorder, so do seek help before it gets worse.

Bart

Bart

 

Even you know it would be called "16MP full color" by lowly Bayer
manufacturers. Now, that, is a joke.

Why? Because they'd block 67% of the light from hitting it.

 

Apparently you've given up.