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[filmscanners] Re: 3 year wait



Then look to yourself my man because as is well known in the more discerning
circles "A bad workman always blames his tools".....

sorry squire, sorry, but there we are.

----- Original Message -----
From: "Simon Lamb" <simon@sclamb.com>
To: <dickbo@btopenworld.com>
Sent: Thursday, May 09, 2002 2:10 PM
Subject: [filmscanners] Re: 3 year wait


What?  If you must answer at least do so in a way that is understandable.
The cameras and film used were:

Hasselblad 503CW with 180mm f/4 CF T* Sonnar (one of the best Zeiss lenses
ever made) / Delta 100, Provia 100F & Portra 160NC

Leica M6 with 90mm f/2 APO ASPH (one of the best Leica M lenses ever made) /
Delta 100, Provia 100F & Portra 160NC

I doubt I need to look to my cameras!

Simon

----- Original Message -----
From: "dickbo" <dickbo@btopenworld.com>
To: <simon@sclamb.com>
Sent: Thursday, May 09, 2002 10:31 AM
Subject: [filmscanners] Re: 3 year wait


> Look to your camera then.
>
> ----- Original Message -----
> From: "Simon Lamb" <simon@sclamb.com>
> To: <dickbo@btopenworld.com>
> Sent: Thursday, May 09, 2002 9:25 AM
> Subject: [filmscanners] Re: 3 year wait
>
>
> I still ask the question, does the quality of the scanner hardware also
have
> any significant effect, such as light path, lens, CCD, electronic
> suppression etc.  This question I raise as a result of comparing Flextight
> Photo scans with SS120 and Multi Pro, where I cannot see any difference in
> detail even under extreme enlargement in Photoshop and careful
examination.
>
> Simon
>
> ----- Original Message -----
> From: "Anthony Atkielski" <anthony@atkielski.com>
> To: <simon@sclamb.com>
> Sent: Thursday, May 09, 2002 8:42 AM
> Subject: [filmscanners] Re: 3 year wait
>
>
> > Laurie writes:
> >
> > > I believe that this is truer for medium format
> > > and large format film s than it is for 35mm
> > > format films, where the additional true optical
> > > ppi is important if one wishes to enlarge the
> > > frame to 16 x20 and larger sizes ...
> >
> > This is true only if the emulsion used can hold details visible only at
> > higher resolutions.
> >
> > In other words, if you are scanning T-Max P3200, you won't get any more
at
> > 4000 dpi than you do at 2700 dpi, and so if 35mm doesn't provide enough
> > detail, you have no choice but to go to a larger format.
> >
> > If you are scanning Velvia or Kodachrome, you can occasionally obtain
more
> > detail than is fully resolved by a 2700-dpi scanner, especially on a
> tripod.
> > In this case you gain a little by scanning at higher resolution, and
your
> > comment above is applicable.  If you are scanning Technical Pan, there
is
> a
> > _lot_ of detail that is not visible at 2700-dpi (assuming you used a
> > tripod), and you can go to nearly ten times that resolution figure and
> still
> > extract additional information.
> >
> > For handheld work, it is frequent that detail is no better than 2700 dpi
> > will resolve, simply because of camera movement.  And even if Velvia
will
> > resolve 120 c/mm in ideal conditions on a tripod, that requires very
high
> > contrast AND a very, very good lens.  A figure of 80 c/mm is more
likely,
> > with an excellent lens, and that requires 4064 dpi.
> >
> > So you might get a bit more with 4000 dpi than with 2700 dpi for some
> > photos.  And going further to 4800 dpi might gain you something under
> > absolutely ideal conditions.  But beyond that, you are just resolving
dye
> > clouds with most emulsions, shooting situations, and lenses.
> >
> > Put more simply, if you aren't getting enough detail at 2700-3200 dpi
from
> > your 35mm slides, you probably need to go to medium format to get more.
> And
> > if MF isn't good enough, you'll need large format.  The emulsions are
all
> > the same and their resolution is fixed, and good scanners can already
pick
> > up essentially everything they provide in the case of commonly-used
> emulsion
> > s, so the only variable you can change to get better images is the area
of
> > film being scanned.
> >
> > > Only if you are attempting to print uncropped
> > > 35mm frames at less than 11x14 sizes.
> >
> > It's independent of that.  The limit is imposed by the emulsion, the
> > shooting conditions, and the lens on the camera.  It is arguable that
2700
> > dpi scanners miss a little bit on the best images, but at 4000 dpi or
> > beyond, this becomes pretty much untenable.  And beyond 4800 dpi, you're
> > almost always resolving nothing more than additional grain, even with
the
> > sharpest color emulsions.
> >
> > In the future, we can hope that films will become sharper (as they have
> > throughout their history), and that lenses will become better (also
quite
> > likely, even though progress is slow).  Scanners are already ahead of
the
> > other elements in the chain, although they'll probably continue to get
> > better, too.
> >
> >
> >
>
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