Seems a strange way to specify it. If they want a to end up with an
uncompressed 24-bit TIFF file of 17MB then they want a sensor resolution
of 17/3 = 5.67 megapixels. Don't know why they don't just say that. I
should think 5 megapixels from a 3:4 aspect ratio sensor is close enough.
Chuck Norcutt
jamesfc@xxxxxxx wrote:
> They are actually referring to an uncompressed TIFF image from a raw file.
> I did a rough calculation that the E-1 would produced an uncompressed file
> around 13.5 MB (my E-10 produces a file around 12 MB). I'm figuring a 5.5
> MP CCD (or CMOS) would probably be the lowest I could go (a Foveon based
> camera excepted). The N*k*n and C*n*n cameras in the same class as the E-1
> are over 6 MP.
>
> If my calculations are incorrect, or lacking - please advise! I know
> there are other factors to consider, and since this is going to be such an
> expensive upgrade, I really want to get my head around this whole digital
> mess. I began shooting all my E-10 images in raw format a short time ago
> and with Photoshop CS, the image quality (which was good anyway) has
> improved by a significant amount. I find that the raw format actually
> contains a wider density range although the highlights can clip quite
> suddenly (not unlike slide film).
>
> Unfortunately, without interpolation, the TIFF files come in about 5 MB too
> small, although many of my images from the E-10 have been accepted by this
> agency in the past.
>
> Jim Caldwell
>
> Original Message:
> -----------------
> From: Chuck Norcutt chucknorcutt@xxxxxxxxxxx
> Date: Wed, 03 Mar 2004 11:56:09 -0500
> To: olympus@xxxxxxxxxx
> Subject: [OM] Re: OM to E1 adaptor
>
>
> Note that the full frame Canon EOS-1Ds only has a raw image size of 9-10
> MB. It 11 megapixel image is certainly competitive with medium format.
> Since a raw format image of 17MB would likely exceed the image quality
> of all medium format film images does this mean that they will not
> accept 35mm film anymore as well? Something doesn't jive.
>
> Chuck Norcutt
>
> jamesfc@xxxxxxx wrote:
>
>
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