Need help on E-420 RAW files

[ruby_barbs]

Hi,

I am using an Olympus E-420 camera with 40-50 mm and 14-42mm lenses.It is a 10 MP camera.

Few days back, I noticed that when I shoot in RAW, and open the files in any photo editor, it shows megapixels as 1.92 MP. If I shoot in Jpg with large format, it is coming to 9.9 mps. The file size for both are almost same( 8-9 MB).

Even with RAW+ jpg format, RAW files are of only 1.92 mega pixels. Why is this so?

Is there any setting that I have messed up?

Why am I not getting 10 MP resolution with RAW files?

Please help.Any pointers will be appreciated.



Thank you,

Ruby.

[snaarman]

Hmm. Odd that.

You usually need to use special measures or plugins and the like to import a raw file into an image editor.

However: I know that each Raw file also includes a low resolution jpeg intended for viewing purposes. I wonder if you have managed to open that instead of the raw data.


Pete

[Ian]

What software are you using to open the RAW files? I sounds to me like the software is only displaying an embedded JPEG thumbnail in the original RAW file.

Ian

[Paul_S]

The embeded jpeg in e-420 raw file is 1600px x 1200px, now even at the highest quality jpeg setting it would only result in a less than 1mb file size,

This leads me to belive that your editor/veiwer is converting the raw file to jpeg on the fly. .knowing the software you are using would be a help.

[Ian]

The embeded jpeg in e-420 raw file is 1600px x 1200px, now even at the highest quality jpeg setting it would only result in a less than 1mb file size,

This leads me to belive that your editor/veiwer is converting the raw file to jpeg on the fly. .knowing the software you are using would be a help.

1600x1200 will be computed as 1.92MP as the OP reported, so I don't think there is any conversion going on, just the extraction of the embedded JPEG.

Ian

[Paul_S]

1600x1200 will be computed as 1.92MP as the OP reported, so I don't think there is any conversion going on, just the extraction of the embedded JPEG.

Ian


True Ian if it showing the uncompressed size. :)

Just for general info the embedded preveiw of the E-620 and E-30 ORFS are much larger at 3200px X 2400px. :)

[Ian]

True Ian if it showing the uncompressed size. :)

Sorry for any confusion Paul, it's mega pixels (not bytes), which is regardless of compression :)

Ian

[ruby_barbs]

Thank you Snaarman, Ian and Paul , for your responses.

I guess I was seeing the embedded and scaled down image , as you people suggested.
I was opening them in photoshop and Irfanview.
When I opened in Olympus master and converted to jpg, it is showing as 9.98 MP :-) ( could not find where to see the MPs for the RAW File in Olympus master)

Thank you again for the help.

Cheers,
Ruby.