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Photo Forum / Film Photography / Darkroom / August 2006

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Darkroom software Help

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quaker@gmail.com - 06 Aug 2006 23:09 GMT
We have created some new software for helping to automate some of the
more mundane functions of darkroom enlarging. It's Free to download and
use and were looking for people to help test it. Please check out
www.pachydermdarkroom.com if your interested.
Claudio Bonavolta - 07 Aug 2006 09:32 GMT
quaker@gmail.com a écrit :

> We have created some new software for helping to automate some of the
> more mundane functions of darkroom enlarging. It's Free to download and
> use and were looking for people to help test it. Please check out
> www.pachydermdarkroom.com if your interested.

Not bad at all but it is limited to the timer functions only (timer,
test strip and print exposure sequence).
You should add several other functions like:
- exposure meter
- densitometer
- color analyzer
- wet side
- etc ...

Well, a lot of things that are already included here:
http://www.bonavolta.ch/hobby/en/photo/darktools.htm
and it's free ...
The hardware interface is described and people without electronic
skills can ask for it.

I'm pretty happy others are also working on similar projects as I
strongly believe a computer-based system can help a lot in a
traditional darkroom.

Claudio Bonavolta
http://www.bonavolta.ch
j - 07 Aug 2006 13:04 GMT
>Not bad at all but it is limited to the timer functions only (timer,
>test strip and print exposure sequence).
>You should add several other functions like:

So much for the target product: TRADITIONAL darkroom tasks. Bloatware is a
disease.

FWIW, it won't run on my laptop. Bombs out looking for DLLs.
Claudio Bonavolta - 07 Aug 2006 15:01 GMT
j a écrit :

> >Not bad at all but it is limited to the timer functions only (timer,
> >test strip and print exposure sequence).
> >You should add several other functions like:
>
> So much for the target product: TRADITIONAL darkroom tasks.

Actually, it just replaces several classic tools used in TRADITIONAL
darkroom.
You may consider these overkill too, others don't.

> Bloatware is a disease.

Closed mindness too.

> FWIW, it won't run on my laptop. Bombs out looking for DLLs.

Read the page again and you'll find out the drivers that are required
for the dry side program ...

Claudio Bonavolta
http://www.bonavolta.ch
jhultquist@yahoo.com - 07 Aug 2006 17:58 GMT
Hi, I am the software designer of Pachyderm Darkroom. (Quaker developed
the hardware.)  Anyway, I just picked up the previous posts and I think
some of Claudio's ideas will be integrated into future releases of the
program if the current package takes off.  Wet side timers have been on
the drawing board for a while, the others will require a lot more
effort to integrate.  We need to try to break even though before we
head in this direction.

J, you mentioned that your computer was crashing looking for DLLs.
Were you refering to Pachyderm?

In the mean time, I am looking for beta testers to help shape the
development of Pachyderm (all levels of skill are welcome).  Please go
to www.pachydermdarkroom.com if you are interested.  We have been
developing this package for about two years and I have been using it my
darkroom for most of that time.  (I sold my Graylab electronic timer on
ebay and I only use Pachyderm now.)

We have tried to make it completely accessible to the average computer
user.  I think it should be as easy to set up and use as printer or any
other plug and play device.  Even if you don't want to be part of the
beta test group I would really appreciate hearing about any comments
you may have.

Thanks,
Jim
dan.c.quinn@att.net - 09 Aug 2006 22:35 GMT
> I'm pretty happy others are also working on similar projects as I
> strongly believe a computer-based system can help a lot in a
> traditional darkroom.  Claudio Bonavolta

 Apple's computer operating system OS-X includes the Java
programing language, compiler, and integration software. I'll likely
have an Apple this fall. Have you any thoughts about building
data-base software using an Apple computer and the
included software? Dan
Claudio Bonavolta - 10 Aug 2006 09:37 GMT
dan.c.quinn@att.net a écrit :

> > I'm pretty happy others are also working on similar projects as I
> > strongly believe a computer-based system can help a lot in a
[quoted text clipped - 5 lines]
> data-base software using an Apple computer and the
> included software? Dan

dan.c.quinn@att.net a écrit :

> > I'm pretty happy others are also working on similar projects as I
> > strongly believe a computer-based system can help a lot in a
[quoted text clipped - 5 lines]
> data-base software using an Apple computer and the
> included software? Dan

I'm not sure if you refer to Pachyderm system or mine ...

First, note I'm not an expert of Java or Apple ...

Said that, my system is based on a commercial lab interface, the
Labjack U12 (www.labjack.com).
It's a basic interface but offers a lot of possibilities (USB
connection, multiple digital I/O, analog I/O, a counter, etc ...) and
is not expensive compared to higher-end models.
Since I started my project, they added other interfaces to their line.
It may be worth to check them too.

Around the U12 I added some basic electronics to make the power
switches, the RGB sensor, a (bought) stabilized switching power supply
for the enlarger, etc ...
And I developed the software using the driver layer to make it work.

In my case, the software is developped with Borland Delphi and uses the
standard Windows DLL but, as other did a great job before me, I was
able to find a source code unit that wrapped the dll calls and driving
the interface became just a matter of calling procedures and functions.
The first version of my software was done in 1999 and it evolved
regularly during these years, adding the hardware interface was a
pretty easy task.
And, as I developped it mainly for my personal needs, I can easily
modify the software on the fly (sometimes during a printing session !).

>From their website, in the downloads section of the U12, there are
*many* drivers available for different platforms (Windows, Linux, Mac)
and languages. Among these Java.
Some may not be fully supported by the manufacturer but should work
flawlessly.
There are also *many* examples of source code in various languages and
various forums where you can discuss topics with others using the same
language:
http://www.labjack.com/labjack_u12_downloads.html
So, with no doubt, if you know java, you'll be able to develop a
software for your needs.

The Labjack U12 is also available in OEM formats (without the case and
connectors) for those who want to include it into a commercial product,
its price is much lower and you can have quantities rebates.

If you look at the pictures of my system, you'll see what I call a
development prototype, a very bulky box with lots of cables where I
must put my (big) fingers in to modify it.
As the hardware is pretty stable now, I, hopefully soon, will develop a
"production" prototype, much smaller, integrated onto a single board
and using an OEM version of the U12. The result will be much smaller
and cost a lot less.
I hope to put such description on my site by the end of the year,
together with the PCB (printed board layout).
I can't fix a precise date as I'm involved in the tough battle of
trying to publish a book (www.swissparades.ch) and I'm definetely not
sure to win that battle ...
If there is interest, I may either sell it as a kit (electronic
components price drops with quantity and it's already sensible from 10
pieces on) or a complete unit.
Intended that I don't want to make a commercial activity out of it, as
I'm always to busy and I doubt there is a big market anyway.

I've still some work to do as I would like to make it compatible with
my two next projects, a reflection densitometer and a LED based RGB
color/multigrade head.
The leds will be driven through a triple-timer, one per channel.
That shouldn't be to tough to implement.

Claudio Bonavolta
http://www.bonavolta.ch
j - 10 Aug 2006 12:52 GMT
> In my case, the software is developped with Borland Delphi and uses the
>standard Windows DLL

Ah, well my Windoze XP-Pro doesn't have the DLL(s) you used, so it fails
when it tries to call them.
Claudio Bonavolta - 10 Aug 2006 13:14 GMT
j a écrit :

> > In my case, the software is developped with Borland Delphi and uses the
> >standard Windows DLL
>
> Ah, well my Windoze XP-Pro doesn't have the DLL(s) you used, so it fails
> when it tries to call them.

These dlls are the Labjack driver available on the page where my system
is described.
If you can't find the link, just use this direct one:
http://www.bonavolta.ch/hobby/files/U12SetupV118b.exe

or on the Labjack downloads page:
http://www.labjack.com/files/U12SetupV118f.exe
This version is slightly newer and I haven't tested it yet but should
work.

The wet side program does not require this driver as it doesn't use any
hardware and should work as is.

Claudio Bonavolta
http://www.bonavolta.ch
dan.c.quinn@att.net - 11 Aug 2006 00:42 GMT
> dan.c.quinn@att.net a écrit :
>
[quoted text clipped - 7 lines]
> > data-base software using an Apple computer and the
> > included software? Dan

    I don't anticipate any hardware IO issues. I have though within
C included assembly language device drivers. So I've some idea what
you are talking about.
    Of  Java I know nothing and years have passed since I've done any
programming. All that at-no-additional-cost program development
software Apple includes won't be going to waste. Dan
j - 11 Aug 2006 03:28 GMT
<dan.c.quinn@att.net> wrote in message
>     Of  Java I know nothing  [...]

That's a good thing, Dan. Java is a horrible non-language. It's got a syntax
that tries to be similar to C but the memory management of friggin BASIC. A
total thrasher. Stupid. It's for lobotomized types who want to be
"programmers". Clueless wannabes.

IMHO of course!
Blacksun67 - 09 Aug 2006 13:33 GMT
> We have created some new software for helping to automate some of the
> more mundane functions of darkroom enlarging. It's Free to download and
> use and were looking for people to help test it. Please check out
> www.pachydermdarkroom.com if your interested.

I'm sorry, but this working method looks a bit like using a software to
calculate the time and duration of an orgasm in a sexual intercourse......

a darkroom is a darkroom, means it was a darkroom even before pc was born...

Hope not to upset anyone, just wanna read what other people think about this
hybrid.

excuse me for my poor English, ______Luca, Italy
Claudio Bonavolta - 09 Aug 2006 16:10 GMT
Blacksun67 a écrit :

> > We have created some new software for helping to automate some of the
> > more mundane functions of darkroom enlarging. It's Free to download and
[quoted text clipped - 3 lines]
> I'm sorry, but this working method looks a bit like using a software to
> calculate the time and duration of an orgasm in a sexual intercourse......

???

> a darkroom is a darkroom, means it was a darkroom even before pc was born...

The first darkrooms used the sun as light source, do you still use the
sun ?
You probably use a timer, why ? Can't you just count ?
All the evolution steps are meant to try to improve quality and/or
comfort and/or efficiency and/or speed. Using a computer to simplify
some darkroom tasks is just another of these basic steps.
Is it worth ? You may decide for yourself.
In my case, yes, my results are consistently better and I obtain them
quicker.

The place where you place the limit between real improvement and
overkill is strongly personal.

I can easily understand someone telling me he likes to work "old-style"
because he prefers the craftmanship approach. I have many friends who
do.
For many it is just a hobby, so, why can't they do it the way they want
?

I don't use split-grade printing, am I obliged to shoot down this
technique in flames ?
I don't use zone system, or so few, can't this technique be useful to
others ?

It is not the tool or the method that is important, it is the way you
master them and the final result you obtain with them.

> Hope not to upset anyone, just wanna read what other people think about this
> hybrid.

What hybrid ?
The Pachyderm software is just a stop-timer including masking
sequences.
My system is similar with several other tools that are absolutely
traditional in the darkroom.

What hurts you is the evident use of a computer to achieve these tasks.
Embed the same software into a ROM and micro-processor, don't ever use
the word "computer", and everybody is happy. That's the way most modern
timers are built today.

It's funny to see how people immediately associate computer to digital
photography, a forbidden word, a major source of allergy probably, in
most analog newsgroups or mailing-lists today.

And the most funny thing is they all use a computer to post in these
newsgroups ...

It's impressive how a newsgroup like rec.photo.darkroom which was an
outstanding place with people having lots of new ideas, trying to
improve methods and equipment is now just a place with the same old
discussions every week.
Hey, don't post, just go to the archives, the thread is already there.

Regarding hybrid systems, have you seen the result of a true hybrid
system like a Lightjet output onto traditional paper ?
I would really be glad to have such a hybrid at home ...

> excuse me for my poor English, ______Luca, Italy

You're welcome, my english is also far from being perfect for the same
reason :-)

Claudio Bonavolta
http://www.bonavolta.ch
j - 09 Aug 2006 18:47 GMT
"Claudio Bonavolta" <claudio@bonavolta.ch> :

> The first darkrooms used the sun as light source,
>do you still use the sun ?

As a matter of fact, I often do.

> You probably use a timer, why ? Can't you just count ?

A metronome worked very well for me... before I became deaf.

>All the evolution steps are meant to try to improve quality and/or
>comfort and/or efficiency and/or speed. Using a computer to simplify
>some darkroom tasks is just another of these basic steps.

If you can operate a computer, you are smart enough to use your brain to do
the same things faster.

>In my case, yes, my results are consistently better and I obtain them
>quicker.

How unfortunate.

>The place where you place the limit between real improvement and
>overkill is strongly personal.

Translation: "Don't underestimate how silly I want to be."

> I don't use split-grade printing, am I obliged to shoot down this
> technique in flames ?

Obliged? Why yes you are. Didn't you read the manifesto? Paragraph two:
"tolerance will not be tolerated."

> I don't use zone system, or so few, can't this technique be useful to
> others ?

You GOTTA read the manifesto! Zonies wrote it!

> What hurts you is the evident use of a computer to achieve these tasks.
> Embed the same software into a ROM and micro-processor, don't ever use
> the word "computer", and everybody is happy. That's the way most modern
> timers are built today.

Really! Of my three timers, two are pure analog. The third is a POS.

> It's funny to see how people immediately associate computer to digital
> photography, a forbidden word [...]

LOL!

>And the most funny thing is they all use a computer to post in these
>newsgroups ...

Irrelevant.

>Regarding hybrid systems, have you seen the result of a true hybrid
>system like a Lightjet output onto traditional paper ?
>I would really be glad to have such a hybrid at home ...

I would like you to have one, too.
j - 09 Aug 2006 18:38 GMT
> I'm sorry, but this working method looks a bit like using a software to
> calculate the time and duration of an orgasm in a sexual intercourse......
[quoted text clipped - 4 lines]
> Hope not to upset anyone, just wanna read what other people think about
> this hybrid.

To me it is just plain silly.  Darkroom exposure and development is a
no-brainer. I have all the information I need in my head. The math and
methodology is elementary. And the brain doesn't have a screen that fogs
paper, doesn't need batteries, isn't held in some kind of software ransom
deal,  and if it crashes, I won't know or care.  I feel the same about the
palmtop computer applications for photography. Downright waste of money and
time. And don't even get me going on idiotic things like the Zone VI
'drydown' gadget. It's a no brainer, too.

Now, what I would like to try is whats-his-names FStop timer with a
footswitch. Presently I have a Timeolite calibrated to FStop times.
Constantly resetting it is a pain in the butt. And the omega timer/power
control is just so 'metric'. :)
nathantw - 09 Aug 2006 18:17 GMT
Wow, that's pretty interesting stuff. $300 for something a $0.05 pencil and
paper can do.

> We have created some new software for helping to automate some of the
> more mundane functions of darkroom enlarging. It's Free to download and
> use and were looking for people to help test it. Please check out
> www.pachydermdarkroom.com if your interested.
j - 09 Aug 2006 18:47 GMT
> Wow, that's pretty interesting stuff. $300 for something a $0.05 pencil
> and paper can do.

Wow, .05 cent pencil! I can do it in my head for nothing!
Claudio Bonavolta - 09 Aug 2006 18:59 GMT
j a écrit :

>>Wow, that's pretty interesting stuff. $300 for something a $0.05 pencil
>>and paper can do.
>
> Wow, .05 cent pencil! I can do it in my head for nothing!

What a head :-)

Claudio Bonavolta
http://www.bonavolta.ch
j - 10 Aug 2006 02:00 GMT
>j a écrit :

>> Wow, .05 cent pencil! I can do it in my head for nothing!

> What a head :-)

Unfortunately, sometimes it wants to run on Guinness.  Damn, it's tough
being Irish. High-octane beer is spendy stuff.
nathantw - 12 Aug 2006 08:58 GMT
>j a écrit :
>>
[quoted text clipped - 4 lines]
>
> What a head :-)

No kidding. I know keeping records about exposure and all is important, but
he can keep all those things in his head? I gotta admit that his memory is
extraordinary if he can keep track of everything he's done in the darkroom
after a few months or even years.
j - 12 Aug 2006 18:55 GMT
> No kidding. I know keeping records about exposure and all is important,
> but he can keep all those things in his head? I gotta admit that his
> memory is extraordinary if he can keep track of everything he's done in
> the darkroom after a few months or even years.

This might seem unbelievable, but I can tell you exactly what film,
developer, time, temp, shutter speed, aperture, lens, camera and photopaper
and developer I used for many pictures I did thirty years ago. But today I
can't remember what's in film holder #4 without notes. :)
Nicholas O. Lindan - 09 Aug 2006 18:58 GMT
> $300 for something a $0.05 pencil and paper can do.

One can say that about the whole of photography.  But even
Picasso saw fit to supplement his $0.05 pencil with a $300
camera.

http://www.detroitmona.com/picasso's_camera.htm

Can't recognize the camera though, about 2/3 way down on
the left.  French?  Italian?  Can't be a Fed 2, can it?
Oh well, so Picasso only spent $30 on a camera.

         *             *              *

But what the hey, back to computers in the darkroom:
a simple one-function digital enlarging timer can cost
$300 new.  Counting elephants is for free.

Me, I believe spending a mere $159 on an F-Stop timer is one
of the nicest things one can do for one's darkroom experience.

Signature

Nicholas O. Lindan, Cleveland, Ohio
Consulting Engineer: Electronics, Photonics, Informatics.
Remove blanks to reply:   n o lindan at ix . netcom . com
f-Stop enlarging timers: http://www.nolindan.com/da/fstop/

Claudio Bonavolta - 09 Aug 2006 19:05 GMT
Nicholas O. Lindan a écrit :

>>$300 for something a $0.05 pencil and paper can do.
>
[quoted text clipped - 16 lines]
> Me, I believe spending a mere $159 on an F-Stop timer is one
> of the nicest things one can do for one's darkroom experience.

Yep, but you don't have that *head* ! :-)

The problem with people closed minded is that they just can't accept
others can do the things differently.
And he has a head, I suppose a brain too, imagine if he didn't ???

Claudio Bonavolta
http://www.bonavolta.ch
David Nebenzahl - 10 Aug 2006 01:18 GMT
Nicholas O. Lindan spake thus:

>>$300 for something a $0.05 pencil and paper can do.
>
[quoted text clipped - 7 lines]
> the left.  French?  Italian?  Can't be a Fed 2, can it?
> Oh well, so Picasso only spent $30 on a camera.

Sure looks like a FED-2 to me.

But take a look at those pictures supposedly taken with this "broken"
(cracked lens?) camera, which, it is further supposed, may have inspired
his later paintings of distorted faces.

Can you say "hoax"?

Signature

In order to embark on a new course, the only one that will
solve the problem: negotiations and peace with the Palestinians,
the Lebanese, the Syrians. And: with Hamas and Hizbullah.

Because it's only with enemies that one makes peace.

- Uri Avnery, Israeli writer and peace activist with Gush Shalom.
(http://counterpunch.org/avnery08032006.html)

David Nebenzahl - 10 Aug 2006 05:59 GMT
David Nebenzahl spake thus:

> Nicholas O. Lindan spake thus:
>
[quoted text clipped - 17 lines]
>
> Can you say "hoax"?

Well, "hoax" is a bit too harsh a word: prank is more like it.

And I have to admit they got me, too.

I wrote to MONA and got an amazingly quick response, including this clip
from a newspaper article about the museum and its founder:

===========================================================

Mastermind behind MONA shrewdly takes on Picasso

Taking a playful jab at the 20th-century artist, Jef Bourgeau's exhibit
stands out

by Joy Hakanson Colby for the The Detroit News

(Detroit) - Jef Bourgeau is a one-man museum -- the founder, director,
curator and stable of artists associated with the Museum of New Art (aka
MONA).

Sometimes he exhibits his photographs under the name Stig Eklund. Or, he
paints showy abstractions signed Taki Murakishi. Then, he'll "curate" a
group exhibit featuring Billy Conklin, Kenzu Nagawa, Hanne Bloot and
Missy Wiggins -- all personalities he invented and supplied with
different art styles.

"I get an idea and want to go in a different direction," he explains.
"So I create an artist to do the job."

Bourgeau is playing his latest name game with a 20th-century art giant
-- Pablo Picasso, no less. It took real chutzpah to come up with the
current exhibit called "Picasso's Camera." This risky project is packed
with edgy humor, and it swipes at sacred cows and offers commentary on
art world quirks.

With tongue in cheek, Bourgeau credits a broken lens on Picasso's camera
with inspiring Cubism, a great breakthrough in modern art. To illustrate
this, MONA's head man produced a series of fractured photo portraits
that are wonderfully outrageous.

Or, Picasso is interpreted through Bourgeau's "combines," which are
sculptures made with found objects joined to make a point. For instance,
there's the antique bellows that resembles a Picasso mask. It's attached
by means of a fire hose to a sexy red shoe that recalls the famous one's
reputation as a womanizer.

A video titled "The Mystery of Picasso" keeps flipping nothing but
credits. Another video captures the master's face inside a pet carrier
and calls attention to itself by heavy breathing.

Although Picasso is the centerpiece of the exhibit, Bourgeau included a
few leftover art works from earlier shows. One is the notorious "Bathtub
Jesus," a combine that closed his one-man show at the Detroit Institute
of Arts on its third day in 1999. When the museum was accused of
censorship, it caused a ruckus in the international art community.

With "Picasso's Camera," Bourgeau demonstrates once more why his one-man
museum is celebrating its 10th anniversary this year and is likely to go
for 20. It's a Detroit treasure.

As one last personal note:

Maybe it’s the new year, maybe it’s just the passing of time, but I’m
evaluating people who have touched my life over the years. I must say
that Jef Bourgeau has made a dent in my thinking. I always somehow
mistrust the word “genius” but I think if I were going to use it for an
artist in this place and time, it would be for Bourgeau. I think his
ideas and his philosophy need time to reach people, to seep through the
armor that walls off our brains. I’ve been in turn annoyed, angry,
dazzled, amused, nonplussed, outraged, intimidated, bewildered and a
host of other emotions that his work calls up. All I can say at this
point is…The Picasso show is a wonder.  - Joy Hakanson Colby

Signature

In order to embark on a new course, the only one that will
solve the problem: negotiations and peace with the Palestinians,
the Lebanese, the Syrians. And: with Hamas and Hizbullah.

Because it's only with enemies that one makes peace.

- Uri Avnery, Israeli writer and peace activist with Gush Shalom.
(http://counterpunch.org/avnery08032006.html)

j - 10 Aug 2006 02:10 GMT
> Me, I believe spending a mere $159 on an F-Stop timer is one
> of the nicest things one can do for one's darkroom experience.

Ah hah! There you are!

Can I run an Omega Chromegacontrol power unit from your timer? Somehow?
Seriously, yours is the first piece of new technology I have considered
buying, but unfortunately my LF enlarger is a POS with a color head, and
methinks the power controller is required.

Let me know. I'd be more than happy to find a reason to trash the piece of
crap, if I can find a conventional bulb head.
Nicholas O. Lindan - 10 Aug 2006 04:33 GMT
> Can I run an Omega Chromegacontrol power unit from [a Darkroom Automation
> F-Stop] timer?

http://www.nolindan.com/da/fstop/

If the Chromegatrol can plug into a regular ole'
GraLab/Time-O-Lite/Beseler timer then the answer is
yes.

Signature

Nicholas O. Lindan, Cleveland, Ohio
Consulting Engineer: Electronics, Photonics, Informatics.
Remove blanks to reply:   n o lindan at ix . netcom . com

j - 10 Aug 2006 12:49 GMT
>> Can I run an Omega Chromegacontrol power unit from [a Darkroom Automation
>> F-Stop] timer?
[quoted text clipped - 4 lines]
> GraLab/Time-O-Lite/Beseler timer then the answer is
> yes.

Darn. It doesn't. The Chromegacontrol is a power stabilizer, transformer,
capacitor and timer all in one.. one honkin big POS.  I'm now looking for a
conventional head to get past that.
Claudio Bonavolta - 10 Aug 2006 13:34 GMT
j a écrit :

> >> Can I run an Omega Chromegacontrol power unit from [a Darkroom Automation
> >> F-Stop] timer?
[quoted text clipped - 8 lines]
> capacitor and timer all in one.. one honkin big POS.  I'm now looking for a
> conventional head to get past that.

Hmmm, couldn't you let the Chromegacontrol always ON an insert a serial
timer/switch between it and the lamp ?

My system is somewhat similar: I use a DC stabilized power supply which
can't be driven by operating its mains because of it has a consequent
rise/fall time due to internal capacity.
I opted for a DC switch (a large MOS-FET accepting 50A and driven by a
TTL level input) between the supply and lamp. I actually drive it with
my system but you can use whatever timer able to output a TTL level
when ON.

Nicholas may probably make an optional device that plugs in his AC
switching output and generates this TTL level together with the MOS-FET
switch.
This can be useful for several other enlargers types.
The MOS-FET subsystem can't be simpler and is detailed in my hardware
page:
http://www.bonavolta.ch/hobby/en/photo/darktools_hardware.htm#DCSwitch
Of course, you may use a relay based system instead if you prefer.

Claudio Bonavolta
http://www.bonavolta.ch
Lloyd Erlick - 10 Aug 2006 17:53 GMT
August 10, 2006, from Lloyd Erlick,

Claudio, would your surname translate into
English as 'Good Volts' ?? (or maybe
Goodvolts)

It would certainly be appropriate ...

regards,
--le

>j a écrit :
>
[quoted text clipped - 33 lines]
>Claudio Bonavolta
>http://www.bonavolta.ch
David Nebenzahl - 10 Aug 2006 18:55 GMT
Lloyd Erlick spake thus:

> Claudio, would your surname translate into
> English as 'Good Volts' ?? (or maybe
> Goodvolts)
>
> It would certainly be appropriate ...

I'm guessing more like "good turn", no?

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Claudio Bonavolta - 10 Aug 2006 19:13 GMT
David Nebenzahl a écrit :
> Lloyd Erlick spake thus:
>
[quoted text clipped - 5 lines]
>
> I'm guessing more like "good turn", no?

I haven't thought of this one, not bad !
I did 7 years of motorcycle racing :-))

Something related to photography ?

Thanks,
Claudio Bonavolta
http://www.bonavolta.ch
Lloyd Erlick - 10 Aug 2006 19:46 GMT
>Something related to photography ?
>
>Thanks,
>Claudio Bonavolta

August 10, 2006, from Lloyd Erlick,

'Nicetime'

regards,
--le
j - 11 Aug 2006 03:23 GMT
"Claudio Bonavolta" <claudio@me.bonavolta.ch>:

> I haven't thought of this one, not bad !
> I did 7 years of motorcycle racing :-))

Hey, my Brother! I raced Gary Nixon''s (USA) TD 25O machines, and also a
Rickman-Trident that's in the history books! Don't ya love it!

'course, that was before the big thing that keeps me off of anything on two
wheels, but we digress.

Do your thang!
Claudio Bonavolta - 10 Aug 2006 19:07 GMT
Lloyd Erlick a écrit :
> August 10, 2006, from Lloyd Erlick,
>
[quoted text clipped - 6 lines]
> regards,
> --le

Unfortunately, I'm not a descendant of Alessandro Volta:
http://en.wikipedia.org/wiki/Volta
whose name was given to the unit of measure :-)

In my surname, it means more "time", as in "Once upon a time, ...", so a
closer translation would be "Goodtime" (not sure it is) :-)

Cheers,
Claudio Bonavolta
http://www.bonavolta.ch
Lloyd Erlick - 10 Aug 2006 19:45 GMT
>In my surname, it means more "time", as in "Once upon a time, ...", so a
>closer translation would be "Goodtime" (not sure it is) :-)
>
>Cheers,
>Claudio Bonavolta
>http://www.bonavolta.ch

August 10, 2006, from Lloyd Erlick,

No kidding! It's still appropriate for the
software you're discussing!

regards,
--le
j - 11 Aug 2006 03:20 GMT
> Hmmm, couldn't you let the Chromegacontrol always ON an insert a serial
> timer/switch between it and the lamp ?

:) Not this one, Claudio. If I turn it on with the switch on 'focus' (which
means 'on') big sparks jump out of the lamp wires, the lamp burns out, and
smoke just ruins the whole day.

I apparently have a bad unit.

Oh, and so does my enlarger. :)
Greg "_" - 10 Aug 2006 17:33 GMT
> Darn. It doesn't. The Chromegacontrol is a power stabilizer, transformer,
> capacitor and timer all in one.. one honkin big POS.  I'm now looking for a
> conventional head to get past that.

One can get a standard power supply which weighs half as much and can be
attached to a separate timer of choice. So there really is no need to
get a new lamphouse if that one works.
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j - 11 Aug 2006 03:24 GMT
>> Darn. It doesn't. The Chromegacontrol is a power stabilizer, transformer,
>> capacitor and timer all in one.. one honkin big POS.  I'm now looking for
[quoted text clipped - 4 lines]
> attached to a separate timer of choice. So there really is no need to
> get a new lamphouse if that one works.

So you say. Wish to be specific? I'll buy it... then hound your a.s to hell
if it doesn't work. Sound fair to you?
odonoghue - 22 Aug 2006 07:21 GMT
take a look at this web page — it may be of interest:
http://www.rhdesigns.co.uk/darkroom/html/stopclock_professional.html

cheers,
mike

>>>Can I run an Omega Chromegacontrol power unit from [a Darkroom Automation
>>>F-Stop] timer?
[quoted text clipped - 8 lines]
> capacitor and timer all in one.. one honkin big POS.  I'm now looking for a
> conventional head to get past that.
 
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