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Photo Forum / Film Photography / Darkroom / January 2005

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220 volt vs 120 volt enlargers

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Richard Levacy - 14 Jan 2005 03:22 GMT
Is there an advantage in either 120 volt vs 220 volt enlargers?
Thank you.
jjs - 14 Jan 2005 03:31 GMT
> Is there an advantage in either 120 volt vs 220 volt enlargers?

None whatsoever.
Jim Phelps - 14 Jan 2005 06:42 GMT
> Is there an advantage in either 120 volt vs 220 volt enlargers?
> Thank you.

Certainly.  A 120 volt enlarger will last much longer when plugged into 120
than 220.  Plug a 120 volt enlarger into 220, and it will work for
milliseconds, your warranty will be void, and you just may qualify for a
Darwin award.

So, in other words, the voltage of your enlarger must match the voltage
where you intend on using it.  For example, in the U.S., use the 120 version
and in Europe the 220.
David Nebenzahl - 14 Jan 2005 07:34 GMT
On 1/13/2005 10:44 PM Jim Phelps spake thus:

>> Is there an advantage in either 120 volt vs 220 volt enlargers?
>
[quoted text clipped - 6 lines]
> where you intend on using it.  For example, in the U.S., use the 120 version
> and in Europe the 220.

You posting wins the latest round of the "Duh!" awards.

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Jim Phelps - 14 Jan 2005 07:39 GMT
> On 1/13/2005 10:44 PM Jim Phelps spake thus:
>
[quoted text clipped - 10 lines]
>
> You posting wins the latest round of the "Duh!" awards.

And the original question doesn't?
David Nebenzahl - 14 Jan 2005 08:52 GMT
On 1/13/2005 11:44 PM Jim Phelps spake thus:

>> On 1/13/2005 10:44 PM Jim Phelps spake thus:
>>
[quoted text clipped - 12 lines]
>>
> And the original question doesn't?

I guess his won the previous round ...

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Jim Phelps - 14 Jan 2005 09:03 GMT
> On 1/13/2005 11:44 PM Jim Phelps spake thus:
>
> I guess his won the previous round ...

Just trying to answer at the same level as the question.
Gregory Blank - 14 Jan 2005 12:42 GMT
> Just trying to answer at the same level as the question.

Hehe please don't quote or respond to people in my kill file :-)

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"To announce that there must be no criticism of the President,
or that we are to stand by the President, right or wrong,
is not only unpatriotic and servile, but is morally treasonable
to the American public."--Theodore Roosevelt, May 7, 1918

Andrew Price - 14 Jan 2005 21:56 GMT
>> Just trying to answer at the same level as the question.
>
>Hehe please don't quote or respond to people in my kill file :-)

Would you care to supply the necessary crystal ball, such that we can
tell just who is in your kill-file?
Gregory Blank - 14 Jan 2005 22:23 GMT
> >Hehe please don't quote or respond to people in my kill file :-)
>
> Would you care to supply the necessary crystal ball, such that we can
> tell just who is in your kill-file?

Why? It was a joke.

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"To announce that there must be no criticism of the President,
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is not only unpatriotic and servile, but is morally treasonable
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dplotusnotes@yahoo.com - 14 Jan 2005 15:57 GMT
Give the initial poster a break.

There are advantages to 220v clothes dryers and stoves over their 120v
siblings.

Might there be any to 220v enlargers?
I don't know.
But that may be why he asked the question.

Collin
Caveat:  This posting may be as accurate as a Dan Rather comment.
Nicholas O. Lindan - 14 Jan 2005 16:40 GMT
> There are advantages to 220v clothes dryers and stoves over their 120v
> siblings.  Might there be any to 220v enlargers [in a 120V country]?

Domestic 220V is used in the US for high power appliances, such as
the above dryers and stoves.

But a 2,000+ watt enlarger?  Somewhere there may be an 11x14" enlarger
with a xenon/HID arc lamp light source, but most use a ~150W light bulb.
At 150W there is no advantage to 220V.

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David Nebenzahl - 14 Jan 2005 17:38 GMT
On 1/14/2005 8:40 AM Nicholas O. Lindan spake thus:

>> There are advantages to 220v clothes dryers and stoves over their 120v
>> siblings.  Might there be any to 220v enlargers [in a 120V country]?
[quoted text clipped - 5 lines]
> with a xenon/HID arc lamp light source, but most use a ~150W light bulb.
> At 150W there is no advantage to 220V.

Heh. Just for that, I'm going to outfit my old Elwood with a BAK projection
lamp (1000 watts) and a forced-air cooling system, courtesy of my old Hell &
Bowell 16mm projectors. Then fit my enlarging lens with a shutter and make
exposures in the 1/10 second range ...

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dplotusnotes@yahoo.com - 14 Jan 2005 17:43 GMT
That makes more sense.

In addition ... I wonder ...
How many use voltage stabilizers on their condenser enlargers?

If not, cheap UPSs for $35 or so would really be a good thing to
obtain.
Nicholas O. Lindan - 14 Jan 2005 18:05 GMT
> How many use voltage stabilizers on their condenser enlargers?
> If not, cheap UPSs for $35 or so would really be a good thing to
> obtain.

Cheap UPS systems don't regulate the AC line.  The regulation
of the cheap "trip-lite" AC regulators is so bad they are not
worth using.

There was a cheap solution called a Wein 'Regu-Lite' that worked
for low-line conditions but could not regulate if the line voltage
got above 117V.  The Wein's design and construction left much to be
desired, if you get one/have one keep a fire extinguisher handy.

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Nicholas O. Lindan, Cleveland, Ohio
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Remove spaces etc. to reply: n o lindan at net com dot com
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Bogdan Karasek - 17 Jan 2005 08:18 GMT
Hi,

The one place where 220v would be useful would be with the print drying
machine (The flat one that have a canvas cover to hold the prints
against the heating platen). I just acquired one that measures about 2½
x 3½ feet and +.  Save on electricity, if I run it all day.

Enlargers and safe lights are feeble users.

Bogdan

>>There are advantages to 220v clothes dryers and stoves over their 120v
>>siblings.  Might there be any to 220v enlargers [in a 120V country]?
[quoted text clipped - 5 lines]
> with a xenon/HID arc lamp light source, but most use a ~150W light bulb.
> At 150W there is no advantage to 220V.

Signature

__________________________________________________________________
  Bogdan Karasek
  Montréal, Québec            e-mail: bkarasek@videotron.ca
  Canada

"Wovon man nicht sprechen kann, darüber muss man schweigen"
"What we cannot speak about we must pass over in silence"
  Ludwig Wittgenstein
________________________________________________________________

Fedor Pavlovic - 14 Jan 2005 07:19 GMT
Richard Levacy via PhotoKB.com ha scritto:
> Is there an advantage in either 120 volt vs 220 volt enlargers?
>  Thank you.

yep ! less risk of electric shock ;)
Louie Powell - 14 Jan 2005 15:03 GMT
> Is there an advantage in either 120 volt vs 220 volt enlargers?
>  Thank you.

Richard -

The enlarger voltage should match the electrical service where you live.  
In Europe and some parts of Asia, the standard service voltage is 220v, and
therefore 220 v would be the appropriate rating for the enlarger.  In North
America and most of South America, the standard service voltage is 120v and
enlargers to be used in those areas should have that rating.

Photographically, however, the voltage is unimportant.
David Nebenzahl - 14 Jan 2005 17:38 GMT
On 1/14/2005 7:03 AM Louie Powell spake thus:

>> Is there an advantage in either 120 volt vs 220 volt enlargers?
>
[quoted text clipped - 5 lines]
>
> Photographically, however, the voltage is unimportant.

So, why does much of Yurp use 220 while North America limps along on 110?
Interesting cultural difference.

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f/256 - 14 Jan 2005 19:05 GMT
> On 1/14/2005 7:03 AM Louie Powell spake thus:
>
> So, why does much of Yurp use 220 while North America limps along on 110?
> Interesting cultural difference.

When Edison came up with his generating system he thought making it 200
something would generate (no pun intended) more law suits than making it
110, so 110 it was.  When Tesla came up with his alternating current system,
he had to make things downward compatible, so he was stuck with 110 Vac.
As for why North America use 110 and Yurpeans use 200 and something, one
reason is that Yurpeans are cheap (or is it wise?) and they don't like to
spend too much money in copper.  Pretty much the same thing as why should I
drive a Suburban to go to work, wasting lots of gas and polluting like crazy
when a Fiat will take me there for less (gas + pollutants), may be the
comparison is a little too off, yeah, I think it is.

:-)
Stefano Bramato - 15 Jan 2005 00:52 GMT
> Pretty much the same thing as why should I
> drive a Suburban to go to work, wasting lots of gas and polluting like crazy
> when a Fiat will take me there for less (gas + pollutants), may be the
> comparison is a little too off, yeah, I think it is.
>
> :-)

As FIAT owner...
what a wonderful comparison!!
:D

ciao!

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the analyst - 15 Jan 2005 02:13 GMT
loses are proportional to current, not voltage, so 240 is better than
110. to power appliances at 110 requires twice as much current, equals
thicker wires.
it must be pure national pride to stay with imperial units and 110V
power supply.

*On 1/14/2005 7:03 AM Louie Powell spake thus:
*
*> "Richard Levacy via PhotoKB.com" <forum@PhotoKB.com> wrote in
*> news:376acaa9ad9748e98afd977c5a2cbdee@PhotoKB.com:
*>
*>> Is there an advantage in either 120 volt vs 220 volt enlargers?
*>
*> The enlarger voltage should match the electrical service where you live.  
*> In Europe and some parts of Asia, the standard service voltage is 220v, and
*> therefore 220 v would be the appropriate rating for the enlarger.  In North
*> America and most of South America, the standard service voltage is 120v and
*> enlargers to be used in those areas should have that rating.
*>
*> Photographically, however, the voltage is unimportant.
*
*So, why does much of Yurp use 220 while North America limps along on 110?
*Interesting cultural difference.
Gregory Blank - 15 Jan 2005 04:18 GMT
Most homes in USA have 220 line current available
for larger appliances, Clothes dryers,Cooking Stoves
and Washing Machines.

> loses are proportional to current, not voltage, so 240 is better than
> 110. to power appliances at 110 requires twice as much current, equals
> thicker wires.
> it must be pure national pride to stay with imperial units and 110V
> power supply.

Signature

LF Website @ http://members.verizon.net/~gregoryblank

"To announce that there must be no criticism of the President,
or that we are to stand by the President, right or wrong,
is not only unpatriotic and servile, but is morally treasonable
to the American public."--Theodore Roosevelt, May 7, 1918

the analyst - 15 Jan 2005 09:39 GMT
do you have different plugs for 220?

*Most homes in USA have 220 line current available
*for larger appliances, Clothes dryers,Cooking Stoves
*and Washing Machines.
*
*
*In article <nuugu0dbo38s3saaq0939sfvtjs8jnbqc8@4ax.com>,
* the analyst <unlisted@due2spam.on.net> wrote:
*
*> loses are proportional to current, not voltage, so 240 is better than
*> 110. to power appliances at 110 requires twice as much current, equals
*> thicker wires.
*> it must be pure national pride to stay with imperial units and 110V
*> power supply.
Gregory Blank - 15 Jan 2005 13:16 GMT
> do you have different plugs for 220?

Yes.

Signature

LF Website @ http://members.verizon.net/~gregoryblank

"To announce that there must be no criticism of the President,
or that we are to stand by the President, right or wrong,
is not only unpatriotic and servile, but is morally treasonable
to the American public."--Theodore Roosevelt, May 7, 1918

the analyst - 15 Jan 2005 22:33 GMT
*In article <d6phu0p9e3l59capegimr2nvt3qvh912pe@4ax.com>,
* the analyst <unlisted@due2spam.on.net> wrote:
*
*> do you have different plugs for 220?
*
*Yes.

looking like something common (European, Italian British,
Australian)or brand new design?
Gregory Blank - 16 Jan 2005 00:50 GMT
> looking like something common (European, Italian British,
> Australian)or brand new design?

Three prongs configured in almost a "Y" shaped pattern, but that
according to ,my electrician friend is a slightly older design than
brand new and "current" ;^) Does that shock you?

Signature

LF Website @ http://members.verizon.net/~gregoryblank

"To announce that there must be no criticism of the President,
or that we are to stand by the President, right or wrong,
is not only unpatriotic and servile, but is morally treasonable
to the American public."--Theodore Roosevelt, May 7, 1918

Bogdan Karasek - 17 Jan 2005 08:31 GMT
> do you have different plugs for 220?

HI,

You bet; there are at least a half doz.  England and the rest of Europe
have different plugs (mostly the shape and size of the the three prongs.
 I just got back from China and S. Korea and you have two diff plugs in
the same county.  Go to a store that specializes in travel gear,
Luggage, and they will sell you a little bag that contains all the half
doz. that are usable with 220 and each plug indicates where it is usable .

As for the transformation from 110 to 220 and vice-versa, most
electronic units are equiped to handle both.  Any laptop, CD, DVD
player, battery charger,  etc., incorporates both.  Just make sure you
bring the right adapter.

Bogdan
__________________________________________________________________
  Bogdan Karasek
  Montréal, Québec            e-mail: bkarasek@videotron.ca
  Canada

"Wovon man nicht sprechen kann, darüber muss man schweigen"
"What we cannot speak about we must pass over in silence"
  Ludwig Wittgenstein
________________________________________________________________
John - 15 Jan 2005 05:27 GMT
>it must be pure national pride to stay with imperial units and 110V
>power supply.

    Nah, we just like to be different than the rest of the world !

Regards,

  John S. Douglas, Photographer -  http://www.puresilver.org
             Please remove the "_" when replying via email
the analyst - 15 Jan 2005 09:41 GMT
you mean, you want to follow your Mr President?

*On Sat, 15 Jan 2005 02:13:20 GMT, the analyst
*<unlisted@due2spam.on.net> wrote:
*
*>it must be pure national pride to stay with imperial units and 110V
*>power supply.
*
*    Nah, we just like to be different than the rest of the world !
*
*
*Regards,
*
*   John S. Douglas, Photographer -  http://www.puresilver.org
*              Please remove the "_" when replying via email
Jim Phelps - 15 Jan 2005 14:18 GMT
> loses are proportional to current, not voltage, so 240 is better than
> 110. to power appliances at 110 requires twice as much current, equals
> thicker wires.
> it must be pure national pride to stay with imperial units and 110V
> power supply.

Can you imagine the economic impact on a nation the size of the US changing
it's electrical grid from a standard of 110 VAC to 220VAC?  Does everyone
send you the bill for a complete set of new appliances (minus dryer and
stove)?
f/256 - 15 Jan 2005 16:27 GMT
> Can you imagine the economic impact on a nation the size of the US changing
> it's electrical grid from a standard of 110 VAC to 220VAC?  Does everyone
> send you the bill for a complete set of new appliances (minus dryer and
> stove)?

OK, forget the 220 VAC thing, but adopt the metric system for goodness sake,
at least NASA did after a big screw up!   and I believe to speak for the
rest of the world except North America when I ask: don't call football to a
sport than is played holding the ball in your hands and don't call soccer to
the real Football that is played with, yes you guessed it, the foot!,.
Oh, and don't call parkway the road you drive your car on and don't call
driveway the place you park your car on!!       :-)   :^)
Jim Phelps - 15 Jan 2005 17:22 GMT
>> Can you imagine the economic impact on a nation the size of the US
> changing
[quoted text clipped - 12 lines]
> Oh, and don't call parkway the road you drive your car on and don't call
> driveway the place you park your car on!!       :-)   :^)

Oh, this could go on for quite awhile.

1. Only in the USA....can a pizza get to your house faster than an
ambulance.

2. Only in the USA...are there handicap parking places in front of a skating
rink.

3. Only in the USA......do drugstores make the sick walk all the way to the
back of the store to get their prescriptions while healthy people can buy
cigarettes at the front.

4. Only in the USA.......do people order double cheeseburgers, large fries,
and a diet coke.

5. Only in the USA......do banks leave both doors open and then chain the
pens to the counters.

6. Only in the USA.......do we leave cars worth thousands of dollars in the
driveway and put our useless junk in the garage.

7. Only in the USA......do we use answering machines to screen calls and
then have call waiting so we won't miss a call from someone we didn't want
to talk to in the first place.

8. Only in the USA.......do we buy hot dogs in packages of ten and buns in
packages of eight.

9. Only in the USA......do we use the word 'politics' to describe the
process so well: 'Poli' in Latin meaning 'many' and 'tics' meaning
'bloodsucking creatures'.

10. Only in the USA......do they have drive-up ATM machines with Braille
lettering.
The Photographer - 15 Jan 2005 22:05 GMT
> 9. Only in the USA......do we use the word 'politics' to describe the
> process so well: 'Poli' in Latin meaning 'many' and 'tics' meaning
> 'bloodsucking creatures'.

Nice try ticks are not spelled tics.
F.C. Trevor Gale - 30 Jan 2005 16:21 GMT
I heard an apparently substantiated rumour that  in one or more Kodak
labs, state equality laws dictated that they have a notice on the inside
of the doors in their darkrooms stating "Photographic Darkroom" - both
in text AND IN BRAILLE!!!

<snip>

> 10. Only in the USA......do they have drive-up ATM machines with Braille
> lettering.
F.C. Trevor Gale - 30 Jan 2005 16:40 GMT
I heard an apparently substantiated rumour that  in one or more Kodak
labs, state equality laws dictated that they have a notice on the inside
of the doors in their darkrooms stating "Photographic Darkroom" - both
in text AND IN BRAILLE!!!

<snip>

> 10. Only in the USA......do they have drive-up ATM machines with Braille
> lettering.
Tom Phillips - 16 Jan 2005 14:16 GMT
> > Can you imagine the economic impact on a nation the size of the US
> changing
[quoted text clipped - 3 lines]
>
> OK, forget the 220 VAC thing, but adopt the metric system for goodness sake,

Already tried and failed. Most of us freely know
metrics and equivalents; just don't think the
government should be trying to tell us what
units to think in.

> at least NASA did after a big screw up!  

Yeah and they're still killing astronauts due
to their negligent screw ups. Don't think
metrics is the answer...

>and I believe to speak for the
> rest of the world except North America when I ask: don't call football to a
> sport than is played holding the ball in your hands and don't call soccer to
> the real Football that is played with, yes you guessed it, the foot!,.

Actually it's called football because fundamentally
the ball is either kicked to the opposing team or
kicked between the goal posts to score. Why call a
sport where you can bat the ball with your head
"football"?  ;)

I believe in Europe "football" is officially called
rugby. In the US "soccer" is actually an altered
abbreviation for "association football." So when
you say soccer, you are saying football :)

> Oh, and don't call parkway the road you drive your car on and don't call
> driveway the place you park your car on!!       :-)   :^)

hmmm...I think most of us do drive on our driveways.
Just can't park in our garages because every real
american knows a garage is for storing everything
you can't keep in your house.
Gregory Blank - 16 Jan 2005 18:37 GMT
> > Oh, and don't call parkway the road you drive your car on and don't call
> > driveway the place you park your car on!!       :-)   :^)
[quoted text clipped - 3 lines]
> american knows a garage is for storing everything
> you can't keep in your house.

Ah and a "parkway" to my knowledge usually applies here in the USA
to roads of special designation, thats roads that actually run through
parks or are national highways of some sort. I am sure there are
someplace that does not apply. Just don't get a speeding ticket on 295
outside of DC, you'llhave to go to federal court :-) and probably will
pay some outrageous fine like $250.00

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LF Website @ http://members.verizon.net/~gregoryblank

"To announce that there must be no criticism of the President,
or that we are to stand by the President, right or wrong,
is not only unpatriotic and servile, but is morally treasonable
to the American public."--Theodore Roosevelt, May 7, 1918

the analyst - 15 Jan 2005 22:37 GMT
size doesn't matter, there is plenty more populated states. But your
economy is the biggest, true.
Well, it would be very expensive. How much do you waste due to loses
in wires? Many small appliances (radios, TV, dvd can run from both 110
and 220/240 (switching power supply.
Anyway, it is your problem, not mine.

*
*"the analyst" <unlisted@due2spam.on.net> wrote in message
*news:nuugu0dbo38s3saaq0939sfvtjs8jnbqc8@4ax.com...
*> loses are proportional to current, not voltage, so 240 is better than
*> 110. to power appliances at 110 requires twice as much current, equals
*> thicker wires.
*> it must be pure national pride to stay with imperial units and 110V
*> power supply.
*>
*>
*
*
*Can you imagine the economic impact on a nation the size of the US changing
*it's electrical grid from a standard of 110 VAC to 220VAC?  Does everyone
*send you the bill for a complete set of new appliances (minus dryer and
*stove)?
*
Stefano Bramato - 14 Jan 2005 19:05 GMT
> Is there an advantage in either 120 volt vs 220 volt enlargers?
>  Thank you.

yes.
220 volts enlargers are much prettier than 120 volts.

regards,
Stefano

PS:
are you kiddin?
Signature

ed io imparo...

Ken Hart - 15 Jan 2005 04:00 GMT
> Is there an advantage in either 120 volt vs 220 volt enlargers?
>  Thank you.

Marginal. An enlarger set up for 220 volt will draw less current for a given
wattage lamp, so there may be less voltage loss in the wiring. OTOH, if
there is voltage loss in the wiring ("I-squared-R loss"), then the wiring
should be beefed up!

Can you find a timer that will control a 220V enlarger? Are the lamps
readily available?

Ken Hart
Nicholas O. Lindan - 15 Jan 2005 22:59 GMT
> Marginal. An enlarger set up for 220 volt will draw less current for a given
> wattage lamp, so there may be less voltage loss in the wiring.

In countries where 220V wiring is used the wire sizes are smaller.  The
result is that resistive losses are the same.

The use of 100/120/220 50/60 is historical and can usually be traced to
some pissing contest between the Edison's of the world.

London, at one time, had half the city on 110V and the other half on 220V.
Decisions like that were not made rationally.

Signature

Nicholas O. Lindan, Cleveland, Ohio
Consulting Engineer:  Electronics; Informatics; Photonics.
Remove spaces etc. to reply: n o lindan at net com dot com
psst.. want to buy an f-stop timer? nolindan.com/da/fstop/

Andrew Price - 15 Jan 2005 23:17 GMT
[---]

>London, at one time, had half the city on 110V and the other half on 220V.

So did Paris.  I had my flat changed from 120V to 220V in 1980.
Careful checks before the changeover notwithstanding, there was still
a spectacular bang when I switched on the fluorescent light in the
kitchen - it was the inevitable one which I had forgotten.
Richard Levacy - 18 Jan 2005 17:59 GMT
If the question appeared ignorant to some individuals: that question was prompted by noting that Beseler on the US website sold the 23C enlarger in 120v and 220v. I was buying one for my daughter and could not understand an obvious reason for 220V in the US (and on the US websites), I had hoped some intelligent photographer would have a reasonable explanation, seems the only effect was to weed out a few ignorant photographers!  Sorry.
Gregory Blank - 18 Jan 2005 19:15 GMT
> If the question appeared ignorant to some individuals: that question was
> prompted by noting that Beseler on the US website sold the 23C enlarger in
> 120v and 220v. I was buying one for my daughter and could not understand an
> obvious reason for 220V in the US (and on the US websites), I had hoped some
> intelligent photographer would have a reasonable explanation, seems the only
> effect was to weed out a few ignorant photographers!  Sorry.

 I think its how you originally phrased the question:

> Is there an advantage in either 120 volt vs 220 volt enlargers?
>  Thank you.

 The shortest response would be no there is no advantage, unless you
live in the US or abroad, then the difference is very important. Since
that includes the known world there is always an advantage to having the
one you need for where you are.

I think that answer is pretty well researched, therefore I guess I am
not an ignorant photographer :-)

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LF Website @ http://members.verizon.net/~gregoryblank

"To announce that there must be no criticism of the President,
or that we are to stand by the President, right or wrong,
is not only unpatriotic and servile, but is morally treasonable
to the American public."--Theodore Roosevelt, May 7, 1918

F.C. Trevor Gale - 30 Jan 2005 16:39 GMT
There *may* be a difference if the lamp(s) used in the enlarger head
work at the mains (line) voltage. This is due to the thermal inertia
property of the filament in the lamp.

For the same wattage, a 220-v lamp will have a thinner,
higher-resistance filament which will get to working temperature at a
given speed. The same wattage 110-v lamp will have a thicker,
lower-resistance filament which takes more time to get to it's working
temperature.

This effect is easy to observe at really low voltages: take, say, a
25-watt bulb for your mains / line, and switch it on and off. It'll come
on very quickly and turn off with very little afterglow time. Now look
at the indicator lamps flashing in the tail cluster of the car in front
when you're on the road. They don't go "immediately" on or off - you can
observe them turning on and off more slowly.

For "straight" B&W work it won't make too much difference, but perhaps
for variable-contrast and most definately for colour work, it can make a
difference, because the 110-v lamp will give out more red-end light for
a longer part of the exposure. This can be compensated for with either
filters or the dialling-in of filter values in an electronic head, but
it is just worth knowing / thinking about...

My regards, F.C. Trevor Gale.

<snip>

>   The shortest response would be no there is no advantage, unless you
> live in the US or abroad, then the difference is very important. Since
[quoted text clipped - 3 lines]
>  I think that answer is pretty well researched, therefore I guess I am
> not an ignorant photographer :-)
stewy - 26 Jan 2005 04:43 GMT
anyone4tennis@hotmail.com wrote:

> Is there an advantage in either 120 volt vs 220 volt enlargers?
> Thank you.

No, nothing at all. Durst make a series of low-power DC enlargers. Lamp heat
is kept to a minimum, so very little 'popping' and the 12v ensures a stable
output.
 
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