File names for various digital cameras and RAW extensions
 

Two questions about recorded digital photo files:
1. Filename for photos : Canon with IMGxxx, Panasonic with Pxxx, Casio
with CIMGxxx, Sony with DSCxxx. What about others such as Pentax,
Nikon, Kodak, Olympus, Fuji, etc. ?
Could this name be changed prior to picture taken? or is this feature
built-in the camera that the photos will always have that file name,
plus the numbers that follow?
2. Why there are so many file extension for the RAW files? I heard
different extension name for different brand camera, and even
different name for same camera with different model. Example : Nikon
with .NEF extension. With this different extension name, does this
mean that the data must be read by a special softwares (as the one
that comes with the camera or special PSP or Photoshop) ? What
happens if you rename the file extension on purpose, can it be read by
PSP or photoshop? or it will become corrupt? Is there a common file
extension name, such as .RAW?
Thanks for info.

File names for various digital cameras and RAW extensions
 

On Mon, 22 Oct 2007 17:08:18 -0700, aniramca wrote:

Two questions about recorded digital photo files:
1. Filename for photos : Canon with IMGxxx, Panasonic with Pxxx, Casio
with CIMGxxx, Sony with DSCxxx. What about others such as Pentax,
Nikon, Kodak, Olympus, Fuji, etc. ?

My kodak P850 produces 100_nnnn.kdc for raw - nnnn represents a serial
number.

Could this name be changed prior to picture taken? or is this feature
built-in the camera that the photos will always have that file name,
plus the numbers that follow?
2. Why there are so many file extension for the RAW files? I heard
different extension name for different brand camera, and even
different name for same camera with different model. Example : Nikon
with .NEF extension. With this different extension name, does this
mean that the data must be read by a special softwares (as the one
that comes with the camera or special PSP or Photoshop) ? What
happens if you rename the file extension on purpose, can it be read by
PSP or photoshop? or it will become corrupt? Is there a common file
extension name, such as .RAW?
Thanks for info.

Don't know about MS - but *nix could not care less what the extension is -
it looks at the contents of the file - you can name it whatever you want.

File names for various digital cameras and RAW extensions
 

File names for various digital cameras and RAW extensions
 

wrote:

Two questions about recorded digital photo files:
1. Filename for photos : Canon with IMGxxx, Panasonic with Pxxx, Casio
with CIMGxxx, Sony with DSCxxx. What about others such as Pentax,
Nikon, Kodak, Olympus, Fuji, etc. ?

Fuji use filenames of the form "dscfnnnn", where the nnnn is a sequence
number. Some Olympus cameras use "pMMDDNNNN", where MM is the month, DD
the day of the month, and NNNN is a sequence number. I've seen some
cheap "no-name" cameras that seem to use "IMGnnnnn".

Could this name be changed prior to picture taken? or is this feature
built-in the camera that the photos will always have that file name,
plus the numbers that follow?

I think there are some cameras which allow a user settable prefix in the
filename, but this isn't common.

File names for various digital cameras and RAW extensions
 

File names for various digital cameras and RAW extensions
 

On Tue, 23 Oct 2007 11:19:33 +0100, "Trev"
trevbowdenAT.dsl.pipex.COM wrote:
There is a .raw

Yes.

but its not a camera raw format

Wrong, it *might* be. Panasonic cameras use .raw as a file
extension for their camera raw files.

and existed long before
digital cameras.

Yes, it did. It's never wise to trust a file extension to
identify a file type without checking the contents.

--
John Bean

File names for various digital cameras and RAW extensions
 

fup2 rec.photo.digital

Floyd L. Davidson:

The actual distinctions between file formats are
embedded in the files, not the name. For major
differences, for example to indicate that a file is from
Canon, Pentax, Nikon, or whatever, the first few bytes
of the file are an indicator. That is referred to as a
"magic number", and is true of most unique file formats
(JPEG, .exe, TIFF, .dvi, .gz and so on all start with a
"magic number" to identify them uniquely).

"Uniquely" - in theory. To make things more complicated, some formats
get reused. As an example, Nikon's NEF (at least the variant I got) is
in fact a TIFF file with some private tags. When you open a 20 MB NEF
file with a regular image viewer that ignores file extensions (as it
should) and doesn't know about NEF (like ACDSee 3), all that is
displayed is the tiny RGB preview image.

However, people handling Nikon RAW files usually know what to do with
them anyway, so I wouldn't consider that a huge problem. If the file
extensions get lost and the person responsible for handling the files
doesn't know about their origin, it might become a problem, though.