"secret standard and methodology" sounds sinister to me
Actually you still have no idea what Polaroid does.
Because they use a secret standard and methodology it is as completely
meaningless as the manufacturer that tells you nothing.
Byron
Bob writes ...
I would think you might gain something if you perform tonal
or color editing in PS: Might not results of the editing
operation expand into the larger AdobeRGB gamut?
In theory yes ... but the addition gamut would be beyond your
display, and you wouldn't be able to see
Robert writes ...
regarding my response ...
\ I think you better examine the RGB pixel values before and after
a
profile-to-profile ...
shAf :o)
I think...
Profile to profile changes the file(pixel values) but changing the
"so
called colour space" or you working space should not.
Bud writes ...
Not easy but time consuming. I just peel the plastic off while
holding the
neg on an edge with a forceps. I haven't had any problems doing
this. If you
ask Kodak not to sleeve the negs under "special instructions" on the
envelope, they may - that's a big may - pay attention
Julian wrote:
Because it is an 8-bit D/A, the lowest level we can read is 2^8 lower than
1024 = 1024/256 = 4mV. This is the value of one least significant bit
(LSB). Also, let's assume that this is an optimally engineered 8-bit
system. Because it is optimally engineered, let's say that the
Hi all,
Could somebody point me to a (cheap ?) site where I can download/order PS
5.5 (or 6) as an upgrade to the LE version?
I've read that somebody paid 35$ for 6.0. Is this really possible?
Thanks in advance.
Regards,
Peter
On Wed, 10 Jan 2001 17:04:58 -0800 "David Kotila" [EMAIL PROTECTED]
writes:
Hello,
I have Binuscan PhotoPerfect Advanced that I use with a SS4000
scanner,
the problem is I keep getting this error that the "scanner is not
supported or Doggle is not attached", well since it is the
Does anyone on this list have a FireWire (IEEE 1394)
scanner on Windows? If anyone has a UMAX or
Epson model, could you run VueScan and let me know
if VueScan sees the scanner?
If it isn't seen, could you install ASPI and see if the
scanner is then seen? You can download ASPI from:
on 1/10/01 7:54 PM, Bob Shomler at [EMAIL PROTECTED] wrote:
But if changes do expand into the larger gamut it might affect printed output.
Taking a file in sRGB and converting it to Adobe RGB isn't going to expand
the gamut of the file. It's fixed after becoming sRGB. You can't increase
the
"Colin Maddock" [EMAIL PROTECTED] wrote:
Won't the 12bit a/d converter allow the information
between 4mv and the 1mv noise level to be resolved?
It may, but I think Julian's point is valid which is that for
a given sensitivity from the analog circuitry, changing the
A/D won't make any
Because it is an 8-bit D/A, the lowest level we can read is 2^8 lower than
1024 = 1024/256 = 4mV.
The number of bits has NOTHING to do with what voltage it can read.
Different converters have different voltage ranges, AND the input voltage
range can be changed via an analog front end to the
Is there anyone using Minolta Scan Dual II? I would appreciate if you
share your experience - sharpness, noise, convinience etc.
Thanks in advance. Slava
=
--- NOTE: EMAIL HAS CHANGED !!! -
Slava Zilberfayn| Home +1(416)7838430 | Work +1(416)5931122x2486
EMAIL:
I will work this issue. Give me a few days. This is the first I have heard
of this.
David
-Original Message-
From: chuck phelps [mailto:[EMAIL PROTECTED]]
Sent: Thursday, January 11, 2001 7:01 AM
To: [EMAIL PROTECTED]
Subject:Re: filmscanners: SS4000 with Binuscan
Taking a file in sRGB and converting it to Adobe RGB isn't going to expand
the gamut of the file. It's fixed after becoming sRGB. You can't increase
the color gamut simply by converting into a space that can hold a larger
number of colors.
Andrew Rodney
Andrew, I'm curious if this will hold
for
a given sensitivity from the analog circuitry, changing the
A/D won't make any difference to the density ranges
that the analog circuitry resolves. It only increases the
accuracy with which we read the range of analog values
that the CCD *does* resolve.
May be I'm slow today...but
I recently bought a scan dual ll. Although it is my first experience with a
film scanner, I am quite pleased with it. Have been making 10x13 prints and
although they are not as smooth as a darkroom print, i'm happy with them.
Havn't learned how to fine tune it yet, but for the price I have no
David,
I am using a Mac, system 8.6, Insight 4.5, with 288MB RAM.
Thx,
Dave
"Hemingway, David J" wrote:
You did not mention Mac or PC. If PC be sure you are using Insight 4.5.1
from our web site.
David
-Original Message-
From: David Kotila [mailto:[EMAIL PROTECTED]]
Sent:
At 9:49 PM -0700 1/10/01, Bud wrote:
I just peel the plastic off while holding the
neg on an edge with a forceps. I haven't had any problems doing this. If you
ask Kodak not to sleeve the negs under "special instructions" on the
envelope, they may - that's a big may - pay attention and not sleeve
Chuck,
You're right, I probably have made about 50 scans and then I got this error.
Very weird.
Thx,
Dave
chuck phelps wrote:
On Wed, 10 Jan 2001 17:04:58 -0800 "David Kotila" [EMAIL PROTECTED]
writes:
Hello,
I have Binuscan PhotoPerfect Advanced that I use with a SS4000
scanner,
My work-around the sleeved negative problem is to use the Kmart regular
processing, which goes to the same Kodak lab, and they don't sleeve the negs
and it's cheaper. The draw back is that the negs are placed in the envelope
with out any protection but I have not experienced any problems with
On Wed, 10 Jan 2001 23:17:28 + photoscientia
([EMAIL PROTECTED]) wrote:
What, like a larger gamut than pixel levels from 0 to 255?
g Um, well, AIUI eg R3 G192 B252 is not the same colour in AdobeRGB as it is in
sRGB, RGB values change if converted. Nor should it display or print the
On 10 Jan 2001 09:04:51 -0800 Frank Paris ([EMAIL PROTECTED]) wrote:
I'm still not convinced that there's a
necessary mapping between actual density and ADC resolution.
It's not 'necessary' inasmuch as it /could/ be done differently, but AFAIK the
only CCD prosumer unit to do non-linear
Just a reminder, based on whinges received
.
(2)Please QUOTE SELECTIVELY. There is no need to quote entire preceding msgs
including headers. Just quote enough to make your msg. clear.
This may be off-thread, if not fully OT:
After a somewhat unfortunate start I've been following the
On Wed, 10 Jan 2001 07:47:44 -0800 shAf ([EMAIL PROTECTED]) wrote:
Your question would beg another ... "Is your scanner capable of a
larger gamut than sRGB?" If not, then your PS working color space may
as well be sRGB, but you don't lose anything if the scanner embeds
sRGB and you
On Wed, 10 Jan 2001 23:16:57 + photoscientia
([EMAIL PROTECTED]) wrote:
Oh no!
Not this again.
The answer is one word - linearity.
My reaction entirely :-)
Regards
Tony Sleep
http://www.halftone.co.uk - Online portfolio exhibit; + film scanner info
comparisons
On Wed, 10 Jan 2001 12:54:31 -0500 Austin Franklin ([EMAIL PROTECTED]) wrote:
Devices are not really linear. There are a number of 'distortions'. One is
offset, the second is linearity, and the third is gain.
CCD's are AIUI inherently very linear. 'Offset' = CCD noise in this context, gain
On Wed, 10 Jan 2001 13:47:08 EST ([EMAIL PROTECTED]) wrote:
* Combined Image contrast and Image brightness into
one option (Color|Image brightness) and improved
the color constancy when changing image brightness
Ah, I think I rather wish you hadn't done that Ed, it was fine as it
On Wed, 10 Jan 2001 11:44:23 -0500 Hemingway, David J ([EMAIL PROTECTED])
wrote:
Users have reported on this
forum several times that physically scratched film does not get fixed with
either solution.
I /think/ ICE copes fairly well with limited emulsion-side physical damage, but
not at
On Wed, 10 Jan 2001 18:39:00 EST ([EMAIL PROTECTED]) wrote:
You have to set both "Device|Bits per pixel" to "48 bit RGB" and
"Files|TIFF file type" to "48 bit RGB".
Actually, IWBNI Vuescan installs did not overwrite Vuescan.ini!
Regards
Tony Sleep
http://www.halftone.co.uk - Online
On Thu, 11 Jan 2001 13:06:00 +1100 Julian Robinson ([EMAIL PROTECTED])
wrote:
My conclusion from all this is that the manufacturers cheat by saying that
the Dmax is defined by the D/A resolution as a shorthand, which is true if
the IMPLICATION which follows is that the rest of the system
In a message dated 1/10/01 4:40:35 PM US Eastern Standard Time,
[EMAIL PROTECTED] writes:
filmscanners: but which printer is good enough?Where does one get info on
the Cone quadtone inks? Thanks
Beware Cone quadtone setup for Epson 3000 - the inks are great, but the
driver overdrives the
In a message dated 1/11/2001 2:16:53 PM EST, [EMAIL PROTECTED] writes:
* Combined Image contrast and Image brightness into
one option (Color|Image brightness) and improved
the color constancy when changing image brightness
Ah, I think I rather wish you hadn't done that Ed,
Paragraph is clear enough for me to understand. And is perfectly
correct to my judgement.
Slava
--- Austin Franklin [EMAIL PROTECTED] wrote:
for
a given sensitivity from the analog circuitry, changing the
A/D won't make any difference to the density ranges
that the analog circuitry
On Thu, 11 Jan 2001 18:58 + (GMT), Tony Sleep wrote:
Actually, IWBNI Vuescan installs did not overwrite Vuescan.ini!
I've understood every one of your acronyms,
throughout a long membership in this list, until this one. I'm SO
disappointed with myself!
Hmm. "It would
on 11/1/01 4:26 pm, [EMAIL PROTECTED] at [EMAIL PROTECTED] wrote:
It turns out that the new "Color|Image brightness" option is a
lot subtler than most people realize. Using it to increase or
decrease the overall image brightness is similar to applying
a gamma function (power function) but
It appears to me the word 'sensitivity' was meant as 'range'. Sensitivity
of an analog system is the rate of change. A higher bit A/D could give
higher sensitivity, but would not give a better range (which I believe is
what the paragraph was trying to say), since the range is fixed for a given
Getting off the filmscanning topic, but worth saying, I
think:
From reading the Piezography mailing list, not from
practical experience, I understand that banding can happen
with this system because of slightly inaccurate paper
feeding. Some Epson 3000 printers misbehave in this way, and
some
Austin wrote:
May be I'm slow today...but that paragraph is really unclear
to me, and I know this stuff quite well. What exactly do
you mean by 'for a given sensitivity from the analog circuitry'?
OK, let me put it another way and try to avoid some of the ambiguous terms.
You have an
Hi Rob, Shaf.
I think you better examine the RGB pixel values before and after a
profile-to-profile ...
shAf :o)
I think...
Profile to profile changes the file(pixel values) but changing the "so
called colour space" or you working space should not. When it is saved it
will have
on 1/11/01 5:21 PM, photoscientia at [EMAIL PROTECTED]
wrote:
I find that Photoshop is quite capable of buggering up a perfectly good file
at a single mouse click.
It's usually Photoshop users, not Photoshop that does this!
Most of the profile changes simply seem to be gamma changes or
Rob,
I agree with what you wrote, except that having read some of Tony's old
posts I think this last point quoted below is not true - rather, there is a
definite limit to dynamic range prescribed by the number of bits. An 8 bit
scanner can never do better than a "Dmax" or ~dynamic range of
Austin this was an ILLUSTRATION, not based on an actual D/A - I was using
an illustrative range of 0 -1024mV just to make a point which is valid
whatever range you choose. I could have talked about -3 to +3 V but the
point would have been even more obscure than it already is.
As you point
Ditto.
Frank Paris
[EMAIL PROTECTED]
http://albums.photopoint.com/j/AlbumList?u=62684
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of Viacheslav
Zilberfayn
Sent: Thursday, January 11, 2001 1:12 PM
To: [EMAIL PROTECTED]
Subject: RE: filmscanners:
Oh no!
Not this again.
The answer is one word - linearity.
My reaction entirely :-)
But linearity explains only one half of the issue - that is, that you can't
do BETTER for dynamic range than what is implied by the number of
bits. Linearity doesn't make the most useful point that
(I'm ignoring colour for simplicity's sake).
Color isn't relevant. The sensor doesn't have any color information, only
intensity information. The color is deterministic...ie, a particular sensor
has a particular color filter over it.
The real minimum and maximum
light intensities which the
At 05:58 12/01/01, Tony wrote:
. But Nikon's figures, unqualified as they are, tell us
absolutely nothing useful at all, except that someone in marketing thinks
we're a
bit gullible. Of course if they read lists like this, they'd know better :)
Actually in thinking about it, it is worse than
Devices are not really linear. There are a number of 'distortions'.
One is
offset, the second is linearity, and the third is gain.
I think Austin was refering to the analogue pre-amplifiers built into a
lot of A/D
converters.
You are correct, but I was not limiting the source of the
At 09:53 AM 1/12/01 +1000, Rob wrote:
The only reason I can see that a greater number of bits would help is that
when you are at the extremities of the CCD's range, more bits should help
resolve meaningful data from noise, or by reducing the size of the steps,
reduce the loss of image
If you have followed my comments on this forum for the last year or so I
have been consistant in advising all not to take much stock in the OD specs
of ANY manufacturer as they cannot be used to compare scanners from
manufacturer to manufacturer.
As a large percentage of these scanners are sold
Colin Maddock wrote:
Julian wrote:
Because it is an 8-bit D/A, the lowest level we can read is 2^8 lower than
1024 = 1024/256 = 4mV. This is the value of one least significant bit
(LSB). Also, let's assume that this is an optimally engineered 8-bit
system. Because it is optimally
Ed: Appreciate the explanation... have another question... have a copy of VScan
6.4.5 which I decided to try with my Minolta Elit to scan some Reala negs... I
was able to get it to work with the scanner, but am unable to use Vuescan on a
previously scanned neg, which I have saved in PS6... I want
Finally!?
- Original Message -
From: Austin Franklin [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Thursday, January 11, 2001 5:59 PM
Subject: RE: So it's the bits? (Was: filmscanners: Sprintscan 120 nowon B+H
web
In other words number of
bits does NOT define Dmax, it only defines
Suggest you investigate the color range tool under the select menu. Normally
it works quite well on sky selections.
I don't know about Photoshop LE, but the magic wand has not changed in
several versions of Photoshop. The add, subtract, and exclude options on the
new options pallete were
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