see luminous landscape:
http://www.luminous-landscape.com/tutorials/dq.shtml
> Which brings me to a question. Has anyone tried to express film graininess
as a s/n ratio.
>
> cheers,
> caveman
For an uniform exposure, you have the average film density Da, on the
full frame. This is the "reference". An ideal film should have Da in
each and every point. In the real case, you move the detector and get a
Dmax and Dmin along a track. The peak noise would be the higher value
between (Dmax-
Lets assume a detector with an electrical out put is being measured
(viewed) with an oscilloscope. You will see an irregular wave form that
corresponds to the p-p value of the noise (you can derive the RMS value
from this). This is the same as looking at the noise floor for a
circuit. The S/N r
Dan,
I added that individual to my shit list a couple of weeks ago. Its the
easiest way to deal with the problem.
Don
___
Dr E D F Williams
http://personal.inet.fi/cool/don.williams
Author's Web Site and Photo Gallery
Updated: March 30, 2002
clipped all ..
> -Original Message-
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
>
>
> Bruce R posted:
> > Did you know James Natchway had a camera taken away, and
> thrown off the
> > roof of his hotel in Baghdad by Iraqi soldiers?
> > It's in here:
> http://www.digitaljournalist.org/issue0304/sco
Signal = ideal (image)
noise = difference between ideal and what's actually recorded
Now let's try an experiment. We expose the film to a uniform source of
light. As an average on the whole frame, the "signal" is good, i.e. we
got an average level of gray that corresponds to the exposure. Now let
I think it's been done. Can't remember where I read about it though.
At 11:30 PM 4/5/2003 -0500, you wrote:
William Robb wrote:
Bruce brings a lot of knowledge to the table.
About once every 10 flame wars and 50 insults. A signal/noise ratio much
worse than Edison's phonograph.
Which brings me
Bruce, thanks for posting the photojournalism links.
Let me guess. It's all about your P***s Minusculus Syndrome. I promise I
won't tell anyone. Shhh our secret... ;-)
cheers,
caveman
Bruce Rubenstein wrote:
About the time it turned into a PMS list.
BR
Squeaky would like to know what value of "no noise" you are using, since
S/N is a ratio. I would like to know why you are using a ratio for
something that is constant? The grain for a given film doesn't vary from
one part of the film to another. S/N ratio is useful for quantifying a
dynamic ran
About the time it turned into a PMS list.
BR
[EMAIL PROTECTED] wrote:
Oh, yes, definitely, and therefore quite relevant to discussions on a *PJ* list.
Since when has the PDML been a PJ list? and when did Nachtwey and Turnley
switch to Pentax equipment?
William Robb wrote:
Bruce brings a lot of knowledge to the table.
About once every 10 flame wars and 50 insults. A signal/noise ratio much
worse than Edison's phonograph.
Which brings me to a question. Has anyone tried to express film
graininess as a s/n ratio.
cheers,
caveman
Bruce R posted:
> Did you know James Natchway had a camera taken away, and thrown off the
> roof of his hotel in Baghdad by Iraqi soldiers?
> It's in here: http://www.digitaljournalist.org/issue0304/sconlan.html
>
> Along with a piece by David Turnley and the issue of being an
> independent vs e
Hi,
Sunday, April 6, 2003, 2:39:49 AM, you wrote:
>> Maybe I should teach our cat Squeaky every thing I know and sign her up
>> for the list.
> Squeaky?
> WW
it's the noise they make when you try to use them to sharpen
pencils...
--
Cheers,
Bobmailto:[EMAIL PROTEC
You like Bootsie better? I don't have much to do with picking cat names
around here. If I did they would be called Cat, or Chuck.
BR
[EMAIL PROTECTED] wrote:
- Original Message -
From: "Bruce Rubenstein"
Subject: Re: Vs: Vs: Moving on!
Maybe I should teach our cat Squeaky every th
Did you know James Natchway had a camera taken away, and thrown off the
roof of his hotel in Baghdad by Iraqi soldiers?
It's in here: http://www.digitaljournalist.org/issue0304/sconlan.html
Along with a piece by David Turnley and the issue of being an
independent vs embedded PJ.
http://www.digit
Lasse:
There are two ways to respond to people, like BR, who make offensive
remarks on this list:
1. Ignore them
2. Tell them that you do not condone such rude behavior, and request that
they stop.
You did neither. Instead, you countered with a rude remark of your own,
about BR's nationality
plastic
--- Caveman <[EMAIL PROTECTED]> wrote: > Brendan
wrote:
> > The MZ-3 also has that nicer prism coating.
>
> Does it have a glass eypiece or is it still plastic
> ?
>
> cheers,
> caveman
>
__
Post your free ad now! h
Lasse Karlsson wrote:
From: "Daniel J. Matyola":
Bruce is a troll, Lasse.
You are right, Daniel.
No, he ain't. Look at his self-portrait:
http://pug.komkon.org/00july/JulyOO/4th_july_1999.html
cheers,
caveman
Brendan wrote:
The MZ-3 also has that nicer prism coating.
Does it have a glass eypiece or is it still plastic ?
cheers,
caveman
Dave Evans wrote:
Any notions on either a place that can
repair the lens (choice 1), or a suitable replacement lens (or even two)
(choice 2)?
For choice 2 try www.ebay.com
cheers,
caveman
The MZ-3 also has that nicer prism coating.
--- "Gary L. Murphy" <[EMAIL PROTECTED]> wrote: >
Caveman wrote:
>
> > Since in its infinite wisdom Pentax has pulled out
> the MZ3 info from
> > their web site here is my question: what are
> the main differences
> > between the two ?
>
>
> T
I have owned a Tamron 70-210 F3.5-4 (adaptall) for several years, and have
used it extensively. Good optics, and will go to 1:2 without attachments.
Unfortunately, a tripod leg collapsed, and the outcome was a lens with the
adaptall cocked about 10 degrees off-axis. I could not easily disengage the
From: "Daniel J. Matyola":
> Bruce is a troll, Lasse.
You are right, Daniel.
To what extent however, I only realised yesterday when he jumped at
Roland and then started attacking the French.
Earlier, when making fun of Norwegians/Scandinavians I though he
mostly did it tongue in cheek.
I didn't mi
From: "William Robb" <[EMAIL PROTECTED]>
Bruce, could you pass the Matzah Balls please?
WW
Shouldn't that be Matzo Balls?
Ed
_
Add photos to your e-mail with MSN 8. Get 2 months FREE*.
http://join.msn.com/?page=features/featuredem
- Original Message -
From: "whickersworld"
Subject: Re: M-20/4 vs. K-24/2.8 ?
> Hi Arnold,
>
> The 24mm f/2.8 Nikkors are effectively distortion-free.
Theres distortion, then their is that weird wide angle effect that looks
like distortion. My A 24mm f/2.8 is as distortion free as my Ni
- Original Message -
From: "Bruce Rubenstein"
Subject: Re: Vs: Vs: Moving on!
> Equating a Jewish house of worship with a fast food restaurant is.
Bruce, could you pass the Matzah Balls please?
WW
Of all the B.S. I've heard you spout up to now, this really tops the list.
keith whaley
Bruce Rubenstein wrote:
>
> Equating a Jewish house of worship with a fast food restaurant is.
>
> BR
>
> [EMAIL PROTECTED] wrote:
>
> > If someone does not like you that does not mean that he/she is anti-
> The 24mm f/2.8 Nikkors are effectively distortion-free.
And... how will that help me out? :))
L, a Pentax user...
On Sat, 5 Apr 2003 11:37:02 -0500, you wrote:
>Irrespective of nationality a moron is a moron!
>
..but if you type "More Ron" into Google, you get phonetically
almost-funny hits:
"Go Peds, Aquascooters, Pocket Karts, and More - Ron's"
"Sign the More Ron Weasley Merchandise Petition"
"No more Ro
Good point, Fritz. It's one on one contact that enables understanding. I
always try to deal with business clients face to face, even if they're
halfway around the globe. Across the table dialogue is a huge advantage.
By the way, I spent last week in Amsterdam. What a lovely city,
populated by lo
On Sat, 05 Apr 2003 11:08:33 -0500, you wrote:
>Cut straight to the chase! none of that nice-nice BS.
>
>BR
>
The art of diplomacy is being able to say "nice doggie" until you find
a rock.
If you already have the rock... or if the doggie is behind a fence...
save the breath.
--
John Mustarde
w
Arnold Stark wrote:
>
> The K or A24/f2.8 as well as the A or FA20/f2.8 are not
free from
> distortion, either (which super-wide-angle lens is?)
Hi Arnold,
The 24mm f/2.8 Nikkors are effectively distortion-free.
John
Hey, you can't know about everything. Now you know. I think your apology
is unnecessary
since we're all guilty of this from time to time.
At 09:18 PM 4/5/2003 +0200, you wrote:
Thank you very much for this clarification - I was not aware of this.
I apologise for everything my ignorance has cause
Equating a Jewish house of worship with a fast food restaurant is.
BR
[EMAIL PROTECTED] wrote:
If someone does not like you that does not mean that he/she is anti-Semitic.
The M*300 should be the best value, you'll pay a premium for A*.
About compatibility? Who knows, but you'll be more assured of
full aperture compatibility by staying with the A* version.
At 11:15 PM 4/4/2003 +0100, you wrote:
Hi,
I'm looking for a telephoto to use for wildlife (mainly garden bir
> Ya, but the Renaults I was familiar with in the 70s were, let's say, less
than
> desirable vehicles. (Though I'm told the current ones are pretty good.)
How true this is. Anyone else ever own a LeCar?
Bill
It's happened more than once in the 21st century. Your personal
ignorance doesn't negate the existence of something.
BR
[EMAIL PROTECTED] wrote:
I do not know of any burning of synagogues during the 20th century in France - another country cones to mind - but I may be mistaken.
That's a great joke. I used it several years ago when I wrote a speech for my
bank CEO on the importance of learning languages.
collinb wrote:
> An old missionary joke:
>
> What do you call a person who speaks 3 languages?
> Trilingual.
> What do you call a person who speaks 2 languages?
> Bilin
An old missionary joke:
What do you call a person who speaks 3 languages?
Trilingual.
What do you call a person who speaks 2 languages?
Bilingual.
What do you call a person who speaks 1 language?
American.
I had a citroen 2v for some time ...great !The DS convertible and
the SM have to be
Just returned from 3 days in lovely Washington, D.C. where my daughter plans
to spend all my money on college. Some comments follow.
The weather was beautiful Wednesday and Thursday, sunny and 70 degrees, and
the Cherry Blossoms were in full bloom. It was quite a sight. The trees are
planted
Do not jump into conclusions. If someone does not like you that does not mean that
he/she is anti-Semitic. But if you go on like this, it can happen...
BTW the French guy who advocated destroying McDonalds´s was duly arrested and brought
to trial and convicted.
I do not know of any burning of syn
Thank you very much for this clarification - I was not aware of this.
I apologise for everything my ignorance has caused.
All the best!
Raimo
Personal photography homepage at http://www.uusikaupunki.fi/~raikorho
-Alkuperäinen viesti-
Lähettäjä: Peter Alling <[EMAIL PROTECTED]>
Vastaanottaj
> What about the image quality of the M-20/4, Bob? I remember some quotations
> on Stan's site were not so favourable regarding this lense.
I have never had notable problems or reason to be unhappy over image quality,
but I've never run any side by side tests. I've been using an A20/2.8 lately
On Saturday 05 April 2003 18:16, Ed Matthew wrote:
> Indeed. Many Americans, like many other nationalities, and some
> expatriates, seem to have all the answers.
> Ed
> Indianapolis
> Indiana
Nothing broadens the mind more then spending some years abroad. As one of
these expats, I have spent 3 ye
From: Clive evans <[EMAIL PROTECTED]>
Irrespective of nationality a moron is a moron
Agreed.
Interestingly enough, as a Brit living in France for over ten years , I
have discovered that many French, like Americans, do not travel well,
Shouldn't you have said 'many Americans' rather than implying
When I was in Pais, the French was crowding into McDonald's.
Raimo Korhonen wrote:
> Synagogues? The French are destroying McDonalds's - perhaps they are analogous to
> synagogues to you?
It looks like it's even a Honeywell Spotmatic! That goes way back.
Caveman wrote:
> http://www.photo.net/equipment/beaters/
>
> The good old faithful Pentax seems to be in good company there.
>
> cheers,
> caveman ;-)
--
Daniel J. Matyola mailto:[EMAIL PROTECTED]
Stanley, Power
Bruce is a troll, Lasse. Responding only encourages him. I thought you
were better than that, but perhaps I was mistaken.
I am very interested in politics, foreign affairs, and the war, and I have
strong opinions on these subjects. I belong to lists devoted to these
topics, where we have lively
The K or A24/f2.8 as well as the A or FA20/f2.8 are not free from
distortion, either (which super-wide-angle lens is?), but the distortion
of these lenses is much smaller as that of the M20/f4. The perspective
of the 20mm lenses really is W -- I -- D -- E, I think too wide for a
general wide an
> Bothe lenses are quite sharp, however, the M20/f4 is not the best choice
> for architecture or when there are straight lines near the borders of
> the image as it features rather big distortion. However, the lens is
> really incredbily small, just right for the MX What other lenses do
> y
Irrespective of nationality a moron is a moron!
Interestingly enough, as a Brit living in France for over ten years , I
have discovered that many French, like Americans, do not travel well, if at
all , in fact only around 10% have passports [a statistic shared with the
USA, ] which produces a cer
Caveman wrote:
Since in its infinite wisdom Pentax has pulled out the MZ3 info from
their web site here is my question: what are the main differences
between the two ?
The MZ-3 has a top shutter speed of 1/4000 and flash sync of 1/125. The
5n has shutter speed of 1/2000 and flash sync of
Bothe lenses are quite sharp, however, the M20/f4 is not the best choice
for architecture or when there are straight lines near the borders of
the image as it features rather big distortion. However, the lens is
really incredbily small, just right for the MX What other lenses do
you have? I
Cut straight to the chase! none of that nice-nice BS.
BR
[EMAIL PROTECTED] wrote:
Hell Bruce starts out with name calling so we get there
immediately.
Alright, I am going to get into this they burn both.
http://www.washtimes.com/world/20020422-41009042.htm
http://news.bbc.co.uk/1/hi/world/europe/1904547.stm
http://www.indianexpress.com/ie/daily/20001015/iin15023.html
At 10:25 AM 4/5/2003 +0200, you wrote:
Synagogues? The French are destroying
Someone was very lucky, and someone else was very foolish.
At 10:51 PM 4/4/2003 -0500, you wrote:
> Happy Friday !
Gee, that's about a buck per frame, give or take (depending on
whether you're using a roll of 24 or 36).
Fred
Outside of a dog, a book is man's best friend.
Inside of a dog, it's
Since in its infinite wisdom Pentax has pulled out the MZ3 info from
their web site here is my question: what are the main differences
between the two ?
thanks,
caveman
Three reasons green olives soaked in alcohol. Yum, Yum.
At 05:22 PM 4/4/2003 -0500, you wrote:
On Fri, 4 Apr 2003, William Robb wrote:
> Bruce, it was the Germans who were doing that.
> The French were putting ox blood in theirs.
One more reason to stick to gin martinis.
Well, two more reasons...
I'll have to agree with that, you must be tired.
At 03:56 PM 4/4/2003 -0600, you wrote:
- Original Message -
From: "Cycad"
Subject: Re: Moving on!
> Oh, come on. Something as big as a war intrudes on all aspects of your
life.
It only has to intrude on the PDML because shit for brains don'
The problem is that war, especially this one, is so polarizing and it
devolves into
name calling in no time. Hell Bruce starts out with name calling so we get
there
immediately.
At 10:42 PM 4/4/2003 +0100, you wrote:
Oh, come on. Something as big as a war intrudes on all aspects of your life.
Y
There's more than one kind of moronism on this list.
I've been staying out of this.
Can't people learn the one important rule.
Don't poke the bear!
At 12:40 AM 4/5/2003 +0200, you wrote:
- Original Message -
From: "Bruce Rubenstein" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Frid
I doubt that there's any confusion. Europeans have been doing this long
before McDonalds existed. It is apparent that anti-Semitism is alive and
well in Finland too.
BR
[EMAIL PROTECTED] wrote:
Synagogues? The French are destroying McDonalds's - perhaps they are analogous to synagogues to you?
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