5 Megapixel VS. 4 Megapixel camera

Hello,

I own a Sony Cybershot 5.0 Megapixel camera (cybershot DSC-P10). My
buddy owns an Olympia 4.0 Megapixel camera.

We both set our cameras to the highest resolution.

When I take pictures, the size of the resulting jpeg file is
approximate 2 meg, give or take 100K (on average).

When my buddy takes pictures, the size of the resulting jpeg files is
larger - closer to 2.5 Meg.

Does anyone know why it is like this considering the different
megapixel specification for each camera? I would have thought that the
5 meg camera would have larger jpegs.

Thanks for your help.

Regards,

Mark

On 8 Mar 2005 03:39:55 -0800, (Mark) wrote:

Hello,

I own a Sony Cybershot 5.0 Megapixel camera (cybershot DSC-P10). My
buddy owns an Olympia 4.0 Megapixel camera.

We both set our cameras to the highest resolution.

When I take pictures, the size of the resulting jpeg file is
approximate 2 meg, give or take 100K (on average).

When my buddy takes pictures, the size of the resulting jpeg files is
larger - closer to 2.5 Meg.

Does anyone know why it is like this considering the different
megapixel specification for each camera? I would have thought that the
5 meg camera would have larger jpegs.


depends on the compression settings in the camera and/or the "default"
compression values set/used by the manufacturer ..

The answer is Compression.

Roy G

"Mark" wrote in message
om...
Hello,

I own a Sony Cybershot 5.0 Megapixel camera (cybershot DSC-P10). My
buddy owns an Olympia 4.0 Megapixel camera.

We both set our cameras to the highest resolution.

When I take pictures, the size of the resulting jpeg file is
approximate 2 meg, give or take 100K (on average).

When my buddy takes pictures, the size of the resulting jpeg files is
larger - closer to 2.5 Meg.

Does anyone know why it is like this considering the different
megapixel specification for each camera? I would have thought that the
5 meg camera would have larger jpegs.

Thanks for your help.

Regards,

Mark

In article ,
says...
Hello,

I own a Sony Cybershot 5.0 Megapixel camera (cybershot DSC-P10). My
buddy owns an Olympia 4.0 Megapixel camera.

We both set our cameras to the highest resolution.

When I take pictures, the size of the resulting jpeg file is
approximate 2 meg, give or take 100K (on average).

When my buddy takes pictures, the size of the resulting jpeg files is
larger - closer to 2.5 Meg.

Does anyone know why it is like this considering the different
megapixel specification for each camera? I would have thought that the
5 meg camera would have larger jpegs.

Thanks for your help.

Regards,

Mark



Different file compression settings.
Thats about it.

Comparing one brand to another is tough.


--
Larry Lynch
Mystic, Ct.

I own a Sony Cybershot 5.0 Megapixel camera (cybershot DSC-P10). My
buddy owns an Olympia 4.0 Megapixel camera.
[...]

When my buddy takes pictures, the size of the resulting jpeg files is
larger - closer to 2.5 Meg.

Different file compression settings.
Thats about it.

Comparing one brand to another is tough.

But important. If the files are smaller, they contain less
information. (I'm still looking for a camera that offers lossless
TIFF compression.)

-Joel

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In article , says...
I own a Sony Cybershot 5.0 Megapixel camera (cybershot DSC-P10). My
buddy owns an Olympia 4.0 Megapixel camera.
[...]

When my buddy takes pictures, the size of the resulting jpeg files is
larger - closer to 2.5 Meg.

Different file compression settings.
Thats about it.

Comparing one brand to another is tough.

But important. If the files are smaller, they contain less
information. (I'm still looking for a camera that offers lossless
TIFF compression.)

-Joel

Try one of the Canons that offers RAW file format. This is lossless and
even better than TIFF. Things like white balance, sharpening etc. are
applied on the PC rather than in-camera, so you can adjust things if you
got it wrong when taking the picture.

On Tue, 08 Mar 2005 11:52:20 GMT, "Roy"
wrote:

The answer is Compression.

Roy G

And possibly subject matter. If you take pictures with a lot of open
sky and your buddy takes pictures of dense intertwining forest
features the sky will be easier to compress out.

Mark" wrote in message
. com...
Hello,

I own a Sony Cybershot 5.0 Megapixel camera (cybershot DSC-P10). My
buddy owns an Olympia 4.0 Megapixel camera.

We both set our cameras to the highest resolution.

When I take pictures, the size of the resulting jpeg file is
approximate 2 meg, give or take 100K (on average).

When my buddy takes pictures, the size of the resulting jpeg files is
larger - closer to 2.5 Meg.

Does anyone know why it is like this considering the different
megapixel specification for each camera? I would have thought that the
5 meg camera would have larger jpegs.

Thanks for your help.

Regards,

Mark

Mark wrote:
Hello,

I own a Sony Cybershot 5.0 Megapixel camera (cybershot DSC-P10). My
buddy owns an Olympia 4.0 Megapixel camera.

We both set our cameras to the highest resolution.

When I take pictures, the size of the resulting jpeg file is
approximate 2 meg, give or take 100K (on average).

When my buddy takes pictures, the size of the resulting jpeg files is
larger - closer to 2.5 Meg.

Does anyone know why it is like this considering the different
megapixel specification for each camera? I would have thought that the
5 meg camera would have larger jpegs.

Thanks for your help.

Regards,

Mark


The difference is in the compression factor implemented by the
particular camera firmware. There is a 'happy medium' between a larger
file, and better quality. Some manufacturers go for the smaller files,
and others for the lower compression ratio.


--
Ron Hunter

Dr. Joel M. Hoffman wrote:
I own a Sony Cybershot 5.0 Megapixel camera (cybershot DSC-P10). My
buddy owns an Olympia 4.0 Megapixel camera.
[...]

When my buddy takes pictures, the size of the resulting jpeg files is
larger - closer to 2.5 Meg.

Different file compression settings.
Thats about it.

Comparing one brand to another is tough.


But important. If the files are smaller, they contain less
information. (I'm still looking for a camera that offers lossless
TIFF compression.)

-Joel

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Please feed the 35mm lens/digicam databases: http://www.exc.com/photography
----------------------------------------------------------------------------

There are a number of such cameras, but they demand a premium price, and
require several times more flash card space for each picture.


--
Ron Hunter

In article , says...
I own a Sony Cybershot 5.0 Megapixel camera (cybershot DSC-P10). My
buddy owns an Olympia 4.0 Megapixel camera.
[...]

When my buddy takes pictures, the size of the resulting jpeg files is
larger - closer to 2.5 Meg.

Different file compression settings.
Thats about it.

Comparing one brand to another is tough.

But important. If the files are smaller, they contain less
information. (I'm still looking for a camera that offers lossless
TIFF compression.)

-Joel

----------------------------------------------------------------------------
Please feed the 35mm lens/digicam databases: http://www.exc.com/photography
----------------------------------------------------------------------------



Unless you are into VERY long waiting times you dont want what you think you
want.

Of the several cameras I have that save .tif files, the wat can be as long as
a minute for a 5mp photo.

Even the wait for a raw file is shorter.

There MAY be some cameras around that save .tif as fast as lightning, but if
there is, I have yet to see it.


--
Larry Lynch
Mystic, Ct.