New Foveon sensor for digital camcorders

"Alfred Molon" wrote in message
...
PTRAVEL wrote:

Actually, it wouldn't -- it's primary advantage would be size and weight.
3-chip video cameras offer exceptional color reproduction because
dichroic
prisms split the light into primary colors, each of which is directed to
a
monochrome sensor. The result is high color accuracy without
interpolation
or approximation, as well as excellent low-light performance, as there is
no
light loss involved, except that small amount attributable to the prism.

As a side question: if full colour information in each pixel is not so
important (as has been repeated again and again here), why do higher end
camcorders use three CCDs and a prism to achieve it ?

"Full color information" is a meaningless phrase. All camcorder sensors
provide full color information. What varies is how they do it.

I've described, in this thread, why a Foveon chip-equipped camcorder will
not produce as good an image as a 3-ccd camcorder.


--

Alfred Molon
------------------------------
http://groups.yahoo.com/group/Olympus_405080/
Olympus 5050 resource - http://www.molon.de/5050.html
Olympus 5060 resource - http://www.molon.de/5060.html
Olympus 8080 resource - http://www.molon.de/8080.html

"Georgette Preddy" wrote in message
om...
"PTRAVEL" wrote in message
...

A Foven-based camcorder might be an improvement, possibly even a
dramatic
improvement, over single-CCD camcorders, assuming the sensor was of
sufficient size. No Foveon-based camcorder will produce results
equivalent
to a good 3-CCD prosumer unit, e.g. VX2000, GL2 or XL1, absent
significant
improvements in the underlying technology.

The new Foveon P&S due out soon is rumored to have better video
quality than any consumer video device,

Only by you, George. Calling a lie that you made up a "rumor" is exactly
the same as calling a Foveon p&s with video capability a "prosumer video
camera."

and rivlas 3 chip pro designs.
Not a bad deal for a $300 pocket P&S. It is also rumor to be able to
capture full size 4.5MP still shots while it is shooting video.

wrote in message
...
On Tue, 29 Jun 2004 15:55:23 -0700, "PTRAVEL"
wrote:

Actually, it wouldn't -- it's primary advantage would be size and weight.
3-chip video cameras offer exceptional color reproduction because
dichroic
prisms split the light into primary colors, each of which is directed to
a
monochrome sensor.

So, you are saying that companies like Panavision, Arri, Kinetta and
Thomson are wrong using a one-chip for their high-end e-Cine camera's?
Interesting

I wasn't aware either made digital cameras, nor have I heard of e-Cine.
Regardless, no prosumer-grade camera is single chip.


cheers

-martin-

--
"Light travels faster than sound. That is why some people appear bright
until you hear them speak."

"Bart van der Wolf" wrote in message
...

"Georgette Preddy" wrote in message
om...
SNIP
The new Foveon P&S due out soon is rumored to have better video
quality than any consumer video device, and rivlas 3 chip pro designs.
Not a bad deal for a $300 pocket P&S. It is also rumor to be able to
capture full size 4.5MP still shots while it is shooting video.

You are wrong, again, as usual.

It is a Polaroid P&S, and captures 1440 x 1080 pixels (1.56 MP):
http://www.dpreview.com/news/0406/04062102foveonf19.asp
This will, in addition to still images, produce video clip capture at VGA
(!) resolution.

Bart


Perhaps he's referring to this: http://www.foveon.com/press_x530.html

"Las Vegas, NV (February 11, 2004) - Foveon Inc., a technology leader in
high-quality digital image capture products, announced today that a new
Polaroid brand digital camera will incorporate the 4.5 megapixel Foveon X3
direct image sensor. The camera is the world's first point-and-shoot digital
camera to incorporate X3 technology. Foveon X3 direct image sensors are the
only image sensors that directly capture color in three layers, just like
color film. This results in richer colors, warmer tones, and sharper images
than are available through traditional image sensors."

Regards,

Hal Lowe
http://hals.vstoremarket.com (HaloweGraphics SuperStore)
http://www.halowe-graphics.com/tinc?...name=web_email
http://www.halowe-graphics.com/music.html (free original MP3 background
audios)
http://1and1.com/?k_id=7391019 (Best website host/great prices)

"Hal" wrote in message
...
SNIP
Perhaps he's referring to this: http://www.foveon.com/press_x530.html
SNIP

It's the same sensor used in the Polaroid
http://www.dpreview.com/news/0402/04...laroidx530.asp
and it is 1440 x 1080 pixels.

Bart

"Alex A." wrote in message ...
is this the infamous orville again?

i'm still not convinced of buying anything named 'sigma' since i always
associate it with a bad experience with a similarly named automobile.
and with all this foveon this and that spamming, isn't it going to give that
manufacturer, let alone that camera, negative outlooks rather than getting
people to try it for themselves?

Foveon is NOT Sigma. Different companies. Sigma just happens to be a
camera company that is using an image sensor made by Foveon (different
company). There's nothing to prevent Nikon or Canon from using Foveon
sensors if they wanted to. Foveon is the name of a startup company that
makes sensors, it's not a trademark of Sigma.

This is why I commented in another thread that Foveon is sometimes blamed
for design flaws made by Sigma -- something they don't have any say in.

Mike

"PTRAVEL" wrote in message
. com...

I wasn't aware either made digital cameras, nor have I heard of e-Cine.
Regardless, no prosumer-grade camera is single chip.

I predict that single chip technology will eventually replace
3 chip technology, in much the same manner that a
single strip of color film has now pretty much replaced
using 3 separate strips of monochrome film when
capturing moving color images.

A single piece of film may not be the best way to
make a movie, but everybody is doing it these days :-)

David

In rec.photo.equipment.35mm Georgette Preddy wrote:
"PTRAVEL" wrote in message ...

A Foven-based camcorder might be an improvement, possibly even a dramatic
improvement, over single-CCD camcorders, assuming the sensor was of
sufficient size. No Foveon-based camcorder will produce results equivalent
to a good 3-CCD prosumer unit, e.g. VX2000, GL2 or XL1, absent significant
improvements in the underlying technology.

The new Foveon P&S due out soon is rumored to have better video
quality than any consumer video device, and rivlas 3 chip pro designs.
Not a bad deal for a $300 pocket P&S. It is also rumor to be able to
capture full size 4.5MP still shots while it is shooting video.

must be the same source as that "rumour" of Moon being made of cheese

--
Sander

+++ Out of cheese error +++

"Bart van der Wolf" wrote in message
...

"Hal" wrote in message
...
SNIP
Perhaps he's referring to this: http://www.foveon.com/press_x530.html
SNIP

It's the same sensor used in the Polaroid
http://www.dpreview.com/news/0402/04...laroidx530.asp
and it is 1440 x 1080 pixels.

Bart


Hi Bart,

Well, the article that you're included in your post indicates that it is
indeed a 4.5MP. http://www.dpreview.com/news/0402/04...laroidx530.asp
It even refers back to the article that I posted for more information (?).
So, I'm a bit confused.

I'm not finding the reference supporting your claim. Since I do _try_ to
follow these things closely, I'd appreciate your pointing out the specific
reference for me. I'm not trying to be argumentative here, I really do want
to understand your point.

TIA,

Hal Lowe
http://hals.vstoremarket.com (HaloweGraphics SuperStore)
http://www.halowe-graphics.com/tinc?...name=web_email
http://www.halowe-graphics.com/music.html (free original MP3 background
audios)
http://www.halowe-graphics.com/photo.html (free original video textures)
http://wc.halowe-graphics.com (college student & prof resources)
http://1and1.com/?k_id=7391019 (Best website host/great prices)

On 2004-06-30, Hal wrote:
"Bart van der Wolf" wrote in message
...

"Hal" wrote in message
...

It's the same sensor used in the Polaroid
http://www.dpreview.com/news/0402/04...laroidx530.asp
and it is 1440 x 1080 pixels.

Well, the article that you're included in your post indicates that it is
indeed a 4.5MP. http://www.dpreview.com/news/0402/04...laroidx530.asp
It even refers back to the article that I posted for more information (?).
So, I'm a bit confused.

The imaging sensor has 1440 x 1080 x 3 photosensors (i.e. the Foveon
3-layer stacked pixels.) Foveon thinks the JCIA guidelines allow them
to claim each photosensor as a "pixel". Others disagree.

The Polaroid camera will use software interpolation to produce a
maximum output size of 2460 x 1836 (i.e., 4.5M) pixels. Again, the
reasonableness of advertising this as a 4.5 megapixel camera is
controversial.

--
Erik