Re: TIF or JPEG

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Qkano <wildimages@lineone.net> wrote/replied to:

>What are the pixel dimensions of the D10?
>3088 * 2056 Effective
>3152 * 2068 Total (never did find out what the extra pixels were
>doing)

3072 by 2048

>I'll try cropping some scanned  images to those dimensions the saving
>them as TIFF / jpeg for a comparison.
>Let you know the results later

My RAW files average 5 to mid 6 meg figures, JPG 12 from high 5s to
mid 7s. That is for low noise files, high ISO files are even bigger.

Yes, Photoshop 7, don't know about other versions.
As 8 bit TIF I think they are 16 meg, as 16 bit TIF, they are 32 meg.
I don't store many files like that. I find very rarely do I manipulate
such a file. And the Photoshop file format is what I do save under
when I do this.

Let's not forget though that lossless compression can reduce TIF files
somewhat, depending on the amount of detail, but it's not a big deal.

Of course it would be lovely if I could save TIF files back into RAW
format for archiving. And that's why I save all my stuff as RAW files,
and why Capture One is so great, because it remembers all the
manipulations you did to make a TIF and you can therefore easily make
a new TIF exactly as you did before, cropping and all.

I only save JPG for small preview files that are saved with my RAW
FILES, and for my printer because he won't takeTIFS.

A big problem with JPGs of course is they are only 8 bit files...


Jim Davis
- checkout the Motorcycle Headlight Relay Kit at:
http://jimdavis.oberro.com/html/bike_acc_.html


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