thought the
original post was stating, if he wanted 16x RGB passes, it also
scanned the IR 16x. There would indeed be no need for this.
shAf :o)
... it will also hold the films flatter.
hth ... shAf :o)
x27;s
device profile), ... "negative" film is not straight-forward because
the RGB values are handled by Vuescan's own profile for the scanner.
(my understanding goes back to experience and correspondence with
early versions of VS v.7 ... has anything changed?)
shAf :o)
shAf :o)
ay with and evaluate
this "device RGB" option. If you are using a different "non-profile
savvy" image editor, you are probably better off choosing sRGB in
Vuescan.
shAf :o)
ust and
scratches ... that is, no more than any other scanner.
shAf :o)
Dave writes ...
> > The old scanners never did have problems with excessive dust
> > and scratches ... that is, no more than any other scanner.
> >
> > shAf :o)
>
> ... my LS-30 without ICE compared to scans on my Agfa
> T-2500 are quite different in terms o
e enhanced Tri-X grain on the point source
enlarger we preferred for sharp detail and increased contrast?
shAf :o)
for a highbit color space happens to be
EktaspaceRGB, but that is a subjective preference ... objectively you
should scan highbits into a wide gamut (PhotoproRGB, EktaspaceRGB,
Adobe Wide ... Photopro and Ektaspace being the better editing
spaces). My other preference is to eventually end up in AdobeRGB and
I prefer to keep all images in the same area and archived to the same
CD.
my US$0.02 ... shAf
;s algorithm in
the later versions of v.6 ... BUT, it seems to me someone complained
about Vuescan's "clean" function again softening in early versions of
v.7. I believe Ed admitted as much and promised a fix.
Ed?
shAf :o)
y, can someone tell me how to make the files as small as
> possible without destroying the inherent grain patterns?
Simply scan at full res, and then crop a 400x400 pixel area which is
representative of what you are trying to show or describe. Save as 8/10
quality JPEG and attach.
shAf :o)
t you should know.
shAf :o)
specifically how its done, but professionals have been doing it for a
lot longer than there have been profiles.
shAf :o)
ers Ian Boag
I was just made aware of another article,
part of Bruce Fraser's at CreativePro.com ...
http://www.creativepro.com/author/home/40.html
...specifically on this very subject ...
Out of Gamut: Color-Correcting Photographs in Photoshop
http://www.creativepro.com/story/feature/13486.html
shAf :o)
thing about it. Several types of cards do not like sharing interupts,
SCSI controllers being one (... try a different slot ...), and also older
NICs.
shAf :o)
...
probably not noticeably ...), that adjusting the hardware is better than
letting software adjust the color look-up-table (ref: Real World PS6)
shAf :o)
e original image, but with VS it also means any
number of things done to the image after the raw (uncropped) scan.
> 3) Does rotating a scan in Photoshop have a destructive effect
> on the integrity of the scan? ...
Not if the rotation is 90degrees. If the rotate is something
other the image will soften.
shAf :o)
this???
(... at least Vuescan recognises the both scanners ...*smile*...)
shAf :o)
consult your monitor's manual ... return all the software values to
their factory defaults and start again.
hth ... shAf :o)
It would at least be part of the troubleshooting effort to
determine if the same banding occurs with Vuescan(?)
shAf :o)
g outward), but which, when pressed summons a
contrast
> but no brightness control. Surely there are Mac-ers on this list.
Or is
> there another forum to which I should take this question?
You can try the colorsync list, or any others offered at the Apple
wwwsite ...
http://www.lists.app
ransparencies, because they have
a flatter gamma (lower contrast) and the Dmax is relatively low. Also, the
mask colors help to improve color reproduction, the grain size has been
diminished for the relative film speed, and the emulsions are considerably
sharper ..."
The text does acknowledge the obvious benefits of trannies, as well as
many applications which demand slides.
shAf :o)
her you realize 12bit depth
is all that is required to cover the most extreme optical densities (...
altho there's nothing wrong with having a couple of bits of headroom, as
long as the scanner had a true ability to scan OD=3.3 ...)
shAf :o)
printer (CMYk)
space. It is interesting to note ... many stock photo houses will not
accept anything smaller than 50Mb (24bit RGB).
shAf :o)
ied after that, and before being written to a file or application
... but you better have all the RGB data ... and 12bits is necessary to
capture 11 f-stops.
shAf :o)
ia like is common to "fine" B/W prints on today's printers ... say, 7
lines/mm, ... which equates to ~180 pixel pairs per inch, ... then you
realize there isn't much point in sending finer than 300 pixels/in
resolutions to your printer.
shAf :o)
people can "see" on you image resolutions, then there isn't much point in
pushing beyond 300ppi.
shAf :o)
dicated, will boost the
exposure for blue and green.
Vuescan users should note the difference in mask values if the non-exposed
film is not measured. If not measured properly, I imagine all other white
balance options will not work properly.
shAf :o)
agine being without the 16bit tools.
shAf :o)
gine the D1 firmware compensating. It would be
intersting to compare the EXIF acquisition data with the appropriate
exposure settings for the same lens and 35mm film.
shAf :o)
...
The "air" wouldn't be absolutely dry, but it would NOT be 'wet' either.
They actually sound like a good idea ... providing more air pressure than a
squeeze-bulb, and avoiding some of the problems with the "stuff" that can
come out of pressurized can dusters. Do you have a manufacturer for them??
shAf :o)
uld look like sh_t ... how do you get your
colors right? If PS is already open, it is very quick to get the color
right by sending small JPGs to Photoshop as the viewer.
shAf :o)
ill allow more white pixels for the given gamma setting.
hth(?) ... shAf :o)
Joe Holmes)? ... in
which case I'd switch to Vuescan, and hope Ed adds "none" (or
"native") to VS's color spaces.
... comments? ...
cheerios, shAf :o)
The filmscanners mailing list is hosted by
Rob writes ...
> shAF wrote:
>> For the sake of archiving LS2000 scans, I've been trying to find
the
>> right wide-gamut color space.
> For archiving purposes I'm saving the raw LS30 scans from vuescan.
> That way if the cropping tools improve later, I have the
Rob writes ...
shAF wrote:
> How do you designate "raw" with Vuescan? My most recent trials
>with v.6.0 and v.6.1 insist I choose a color space(?) I haven't yet
>figured out how to defeat it(?)
Select the "output raw scan" option in the output tab.
Even if &q
ts are. I could be
trying to put "1 liter" inside a "2 liter container" just for the sake
of storage(?) ... and therefore Vuescan's options for color spaces may
be entirely adequate.
cheerios ... shAf :o)
CCD sensitivity, but in no case is there any
> mixing of the red, green, and blue channels.
> ...
Not sure what you mean "mixing of the red, green, and blue channels"
... but does your response "some scanners [can use] a multiplier&
Does any one know what the differences are
when Nikonscan CMS gives you the choice between
"Adobe Wide RGB" and "Adobe Wide RGB (compensated)"??
I have measured the differences in RGB values, but I
was wondering what the logic behind "comp
ed readme by Joseph Holmes ... all of it informative and
enlightening.
shAf :o)
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Does any one know what the differences are
when Nikonscan CMS gives you the choice between
"Adobe Wide RGB" and "Adobe Wide RGB (compensated)"??
I have measured differences in RGB values, but I
was wondering ... what is the logic behind
"c
nd it shouldn't be anyone's normal practice to work with
24bits in a wide gamut, the effect is more than curious and should be
a warning for those who may choose to work with wide gamuts and also
use Lab space for sharpening or noise re
a "normal" working gamut ... in
which case, you may find application and usefullness for scanning
16bit data into a wide gamut and archiving it for future developments
(e.g., printing technology).
shAf :o)
The films
no idea if these features are
available if the software detects a LS-30 ... or even if your scanner
comes with the "feeder" adapter(?) I also have no idea why these
settings are not available when scanning slides, or when negat
Also, and altho expensive, Silverfast scanning software
has been suggested as a better replacement for Nikonscan.
(... come to think ... I've never realized any Macintosh user
complain of this problem(?) ...)
shAf :o)
===
color space (without conversion), and do an immediate
save(?)
shAf :o)
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(... but I do wish you'd consider adding the
"Adobe wide gamut" color space to your options ... I do see evidence
of Adobe RGB not capturing the entire gamut of a Q60 ...)
cheerios, shAf :o)
The filmscanners ma
Andrew wonders ...
> on 9/28/00 5:21 PM, shAf at [EMAIL PROTECTED] wrote:
>
> > I might believe it's easier to simply open the Vuescan file into
the
> > appropriate color space (without conversion), and do an immediate
> > save(?)
>
> How's that? Is th
idea if the resulting scan would be close to a scan
by VS if I set that option to gamma=1 ... but I would then have no
idea what "from" profile to use.
shAf :o)
The filmscanners mailing list is hosted by http://www
Andrew writes ...
>
> shAf and Andrew Rodney wrote:
> > simply open the Vuescan file into the appropriate color space
> > and do an immediate save
>
> I tried that before I wrote the software!
>
> ...
> 3) how do I know what colour space the file was scanned
Andrew writes ...
> > shAf and Andrew Rodney wrote:
> > simply open the Vuescan file into the appropriate color space
> > and do an immediate save
>
> I tried that before I wrote the software!
>
> ...
> 2) it is lossy (remember I said I was working with JPEGs)
ge editor, is that if you edited the embedded
file (even a crop) the ICM would be lost as soon as you
saved it.
shAf :o)
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To resign, <mailto:[EMAIL PROTECT
amma=2.2 color spaces (within
Photoshop 5), and all appears to be working correctly ... AND
justifying my request for the "wide gamut RGB" color space ... thanx
again.
cheerios, shAf :o)
The filmscanners mailin
uot; adjustment may have been
more appropriate, but Vuescan now associates the gamma with the color
space only.
shAf :o)
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To resign, <mailto:[EMAIL PROTEC
th a D65 white point."
... did Ed remove this "color space" option?.
My search for what defines PhotoCD space only yields
the whitepoint (6500K), gamma (2.2), and the
transformation equations.
Do definitions for PhotoCD RGB color space exist
in the Photoshop
ly, I would reserve either adjustment
for Photoshop, but I would be paying particular attention to the
whitepoint for the scan ... the sensitivity of image brightness to
this setting was curious.
shAf :o)
The filmscann
going to believe
my scans will suffer much from VS delivering to "wide gamut" and if I
then convert the highbits to "ProPhoto" ... but don't like the extra
step ... the extra calculation ... not very elegant :o)
shAf :o)
occasion, that
we choose quality lenses. No one is going to blame anyone for going
for 4000dpi, even when he (or she) will rarely see the benefit.
shAf :o)
The filmscanners mailing list is hosted by http://www.halftone.co.
with respect to optical density. If a
scanner's OD abilities are not up to the task, then you will see
posterization when you ask the scan to deliver what the image is
supposed to look like.
While still a bit spendy (... < US$4000 ...), Polaroid will
apparently offer a reasonably priced MF
and use a custom color space, which would be defined
with the usual Photoshop ICM parameters (?)
shAf :o)
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To resign, <mailto:[EMAIL PROTECTED]> with UNSUB
GB', then the colors are enclosed in
that gamut ... the result can be nothing other. I can, of course,
convert it to a wider gamut, but is still nothing other than the
'sRGB' gamut as defined in another color space ... nothing is gained.
Am I missing something?
shAf :o)
==
rom a 2000p but, ...
I saw something the other day which implied this printer's ink
cartridges need be Epson, and preclude 3rd party inks (and most likely
papers). Not to imply the Epson inks and papers are very good ...
just a warning in case you're un
controller. If you are having
symptomatic problems, get back to me direct.
shAf :o)
The filmscanners mailing list is hosted by http://www.halftone.co.uk
To resign, <mailto:[EMAIL PROTECTED]> with UNSUBSCRIBE FILMSC
it focuses in the
center of the "device region". Is this the center of the film frame,
or the center of the selected "crop region"??
All else seems to be relatively straightforward, and/or better
explained by scanning and experimentation.
thanx for Vuescan ... shAf :o)
u better check out its
ability for holding the film flat. If its holder does not support
each frame individually (sandwiched top and bottom with bridges
between each frame), then I'd be highly suspect of focus and therefore
resolution.
my US$0.02 ... shAf :o)
=
files" preference box which needs to be checked.
It is called "TIFF profile" ... and if check that and it still doesn't
work then send something direct to Ed. I just today noticed this pref
is unchecked by default, so I'll not get to try it 'til tonight.
shAf :o)
ng 6.2
> when I was fixing a bug building the Mac OS version). I'm
> pretty sure it's fixed in 6.2.1.
Yes ... I found this did work for TIFFs ... BUT I also wrote a single
instance of a JPEG and it didn't work (VS6.2.1).
shAf :o)
=
lors straight from a well-exposed film into 8bits/channel will be
identical to the capabilities of the LS-2000. But, if you have an
occasional need for brightening up an underexposed backlit subject,
you will strain a 8bit histogram getting it there. Highbit editing is
required f
27;m not too sure what "masks" are for(?)
Also regarding exposure, I noticed too that if I scan a blank part of
a film strip ... my IR channel exposure is quite different than if I
had scanned a "normal" negative. How does IR channel exposure affect
"cleaning&quo
glenn writes ...
> as i stumble along learning -- i now have scanned high bit
> images and i can't use unsharp mask in photoshop.
> what does one do ?? ...
one upgrades to Photoshop 6 :o)
shAf
Th
The terms you use gave me an impression of intensity ... a radius or
kernal size setting might be more intuitive(?)
>
> As long as it isn't overexposed, it doesn't really matter too much.
I wonder if its histogram can be examined(?)
thanx ... shAf :o)
=
erate with confidence,and
equally that a client can readily accept. To help establish a system
where digital image files can reliably replace analogue originals,the
Digital Imaging Group proposes
the following criteria. ..."
cheerios, shAf :o)
haven't
found any implication this is so, but I have only been experimenting
with the "film holder" ... and otherwise cannot figure out what "mode"
is for except for making parameter assumptions(?)
shAf :o)
=
ot; link found
on this wwwpage for the "Digital Imaging Group"
http://www.aophoto.co.uk/dig.html
cheerios, shAf :o)
The filmscanners mailing list is hosted by http://www.halftone.co.uk
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. which is relatively easy ... but
it would be cool if I could point VS at a specific directory and it be
less prone to my chronic forgetfulness.
Finally ... possibly a bug with 6.31 ... with 6.2 I wasn't
experiencing any problem with Photoshop reading the embedded
eature for Vuescan ... I imagine the "RGB exposure" can be
played with ... but it would be nice to have access to units like
"exposure index".
shAf :o)
The filmscanners mailing list is hosted by http://www.hal
PCI devices which don't behave or share interrupts
properly. The absolute best way to go is with a "dual channel" SCSI
controller (e.g., Adaptec 2940U2W), which can handle your wide devices
with one channel and the 50pin legacy and SCSI-2 devices with the
other channel .
Johnny Deadman writes ...
> I've used many scanners in many different scsi environments and...
> ...
... but have you used a "dual channel"? I've never experienced
any problems.
shAf :o)
The
luded SCSI cable into the trashcan, and buy another. One of my
earliest lessons was realizing "a SCSI cable is not necessarily a SCSI
cable". If you have problems, the 1st thing to check is proper
termination, the 2nd should be the cable.
shAf :o)
ds do.
> If you check the interrupt numbers, you will
> see some devices getting above 15 for an interrupt number.
I'll of course opt for that when the time comes, but for those of us
who are using completely adequate PIII mobos and the Intel440BX
chipset, it is still easy not to
y good option, because scanners really don't need the PCI
bus speed, is to disable a com port and dedicate the interrupt to an
ISA bus controller (e.g., Adaptec 154x).
shAf :o)
The filmscanners mailing list is hosted by http
a trustworthy remedy if ...
one didn't have a PCI slot, or if there were some other resource
problem. I'm simply suggesting it before buying another computer and
a dual channel SCSI controller.
shAf :o)
tter cable with another just like it, but
that terminates with a proper 50pin external connector, an option
available from Adaptec. This configuration should work perfectly ...
HTH ... shAf :o)
The filmscanners mailing list
these newsgroups:
rec.photo.digital
comp.periphs.scsi
comp.periphs.scanners
alt.autos.4x4.chevy-trucks (... just kidding ...)
HTH ... shAf :o)
The filmscanners mailing list is hosted by http://www.halftone.co.uk
To res
.
I forwarded this reply to the "film scanners'" list just so that
others may indicate it is working fine for them ... that is, to figure
out if it is a version of PS or a version of VS not working properly
(... I
SI more of a problem than it
really is. Generally, the default settings apply, 'cept every device
needs its own ID# and the last device need to be terminated. In the
"*real* world" I certainly had a more difficult time obtaining my
driver's license.
my US$0.02 ... shAf :o)
==
> Dell 733 and my patience.
Printing from any software works with 8bit RGB data only ... even
PS6's capability to print highbit files converts to 8bits first.
However,if your image requires significant adjustments before
printing, these are best done with the high
sure (... and the IR
exposure ...). All other settings, including "brightness" can be
adjusted for effect during Vuscan's "crop" phase.
The RGB exposure is apparently sensitive to the selected crop area
... and I haven't yet found a consistent method.
shAf :
ot;undo"
(the 1st adjustment). Try is by diffencing the before/after.
shAf :o)
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those
100Mb files!? ...). The highbits method will also put your CPU and
RAM and harddrive I/O to work ... better be ready.
shAf :o)
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To resign, <mailto:[E
;device" to 'disk' and point VS at the raw file
you created. For experimentation, have VS write 1/8 size JPEGs as
crop files ... and experiment with the crop settings provided by
Vuescan. When the resulting image is just right, then have VS writ
nd imply an OD=3.4. However, I don't believe the
SS4000 is capable of multi-scanning, as I remember Ed needing to ask
the scanner to do multiple passes and the pass-after-pass registration
not being perfect.
shAf :o)
't want to be
working with a wide gamut because its too unwieldy. A very good book
on the subject of color spaces is Bruce Fraser's "Real World PS" (he
ought to have a version 6 out soon). He has some online articles
here:
http://www.creativepro.com/author/home/40.html
HTH ... s
le pixel, or larger? Do they disappear
with lower res scans?? Are you using Nikonscan software? Do these
also show if you download and use the Vuescan demo?
shAf :o)
t; or other saturated colors
> ...
I'll assume this fix addresses "cropping" after the raw scan(?)
I'll also assume you'll let us know whenever a new version affects the
exposure and "raw" scan(?) Or, maybe you can be more explicit ... you
know what they say about "ass-u-me'ing" :o)
shAf :o)
I love math!
7*1200*4.66*1200* = 46.97Mb ... hmmm? ... why didn't I have to
multiply by 3 channels? ... Is this grayscale?
shAf :o)
out this number has
remained the same since the very first Epson "Stylus Color" printer
(720x720), for which the user manual did suggest 240ppi. It simply
re-enforces the notion of making your own test prints (glossy and
matte papers) for evaluating the point of diminishing returns.
cheerios, shAf :o)
d with some color spaces you can create some
artifacts. Granted, sometimes imperceptable and sometimes (with
respect to the color space) totally absent. A better method which
would do the same thing, would be to use the same degree of USM, and
than 'filter|fade' and use the "luminosity" mode.
my US$0.02 ... shAf :o)
ile'.
It would be best to do all these while in 16bit mode ... and finally
convert back to 8bits before saving or printing.
shAf :o)
change their
printer driver so that detail is improved for the '1440' direction ...
but they may have improved the software so that the higher dpi
direction improved the number of colors without noticable dithering.
shAf :o)
ot of 2
(1.414) ... but this is a minimum, and since 'more-cannot-hurt' was
rounded to '2', but more than that can't be beneficial. I don't
believe this number has much to do with desktop printers, whether it
be a pattern dither, stoichastic or random.
shAf :o)
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