[filmscanners] Re: TIFF file sizes

["Anthony Atkielski" <anthony@atkielski.com>]

Forty-eight-bit files contain two bytes (16-bits) per channel, not one, so
multiply by 6 instead of by 3.

In practice the TIFF files are around 470 MB in size.  Theoretically they
can be as large as 535 MB, if a full 60 mm is scanned in each direction.

----- Original Message -----
From: "Simon Lamb" <simon@sclamb.com>
To: <anthony@atkielski.com>
Sent: Friday, April 26, 2002 12:08
Subject: [filmscanners] TIFF file sizes


My mind has gone to mush and I cannot work out the following:

I scan a 6X6 frame at 4000ppi and select 48-bit output in Silverfast.  I
assume the file size will be:

(((2.25x4000)x(2.25x4000))x3)/1024 = 237Mb

However, I am getting a file size of 406Mb.  Where is my calculation wrong?

Thanks.

Simon

----- Original Message -----
From: "James L. Sims" <jlsims@knology.net>
To: <simon@sclamb.com>
Sent: Thursday, April 25, 2002 1:28 AM
Subject: [filmscanners] Re: SS 120 questions


> Simon,
>
> Once I got Silverfast and Insight into ps7 they work great.  I don't think
you'll have a
> problem.
>
> Jim
>
> Simon Lamb wrote:
>
> > That is great news that the plug-ins work.  Would my Insight 5.5.2 and
> > Silverfast Ai 5.5 work as normal under PS7?  I am concerned about the
Piezo
> > BW plug-in as well, as I use it for all my b&w printing.
> >
> > Simon
> >
> > On 24/4/02 7:38 am, "Op's" <martin@wollongong.apana.org.au> wrote:
> >
> > >
> > >
> > > Simon Lamb wrote:
> > >
> > >> I wish I could help, I am still waiting for Adobe to send me my PS7
upgrade!
> > >> I will probably not install it in the short term anyway, as I have my
> > >> workflow adequately supported with PS6 and I don't want to start
having
> > >> configuration issues upset that flow.
> > >>
> > >> I wouldn't have though Adobe would have rewritten the plug-in
interface as
> > >> there was nothing wrong with it., so I would presume that existing
plug-ins
> > >> would work.  Do any other plug-ins work?
> > >
> > > PS6 and PS 7 look similar  But as a bonus (among other things) there
is a
> > > healing tool which
> > > "clones" heaps better.
> > >
> > > The healing tool will be of benefit to those which do not have ICE -
brilliant
> > > tool and well
> > > worth getting a copy of PS7.
> > >
> > > Plugins are working the same.
> > >
> > > I like the new features.
> > >
> > > Rob
> >
>
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