[pure-silver] Re: ZONE VI VC HEAD, was No More Below the Lens Polymax Filter Kits?

  • From: "mail1" <mail1@xxxxxxxxxxxxxxxxx>
  • To: <pure-silver@xxxxxxxxxxxxx>
  • Date: Sat, 7 Feb 2009 11:03:15 -0800

Bob, greetings,
 
Rob had mentioned “Yes, this is more or less what I am seeing. It isn't the
way the head is supposed to work though! I was told that placing a yellow
filter (cc40y?) between the head and the neg stage will give you performance
as expected, i.e. soft and hard at max should be close to grade 2, but I
haven't tried it yet.”
 
I ran the test to verify what he was told, and yes the maximum soft and hard
setting did in fact produce a grade 2. With out the filter addition these
settings produced ES.78 effective grade 4 shot toe.
 
 Coincidently when looking for a cc40y filter I found a cc30y filter I had
removed in the Zone VI Non VC cold light head.
 
The plotted curves from this test were distorted in the toe with quite an
abrupt hump. The results without the filter were much smoother. I would
normally rerun this test changing the exposure time for the added filter. I
did not do this because I was studying the differences between having a
filter and not.
 
Jonathan Ayers  [mail1@xxxxxxxxxxxxxxxxx]
 
 
   _____  

From: pure-silver-bounce@xxxxxxxxxxxxx
[mailto:pure-silver-bounce@xxxxxxxxxxxxx] On Behalf Of BOB KISS
Sent: Saturday, February 07, 2009 3:45 AM
To: pure-silver@xxxxxxxxxxxxx
Subject: [pure-silver] Re: ZONE VI VC HEAD, was No More Below the Lens
Polymax Filter Kits?
 
DEAR JONATHAN,
      The 40 Y filter is supposed to be used with single tube NON VC cold
light heads to bring the contrast to about #2.  You can then vary CP filters
between the head and the neg or CC filters beneath the lens to get something
approximating your needed contrast.
      It is NOT supposed to be used with VC cold light heads for the reason
you have discovered.
            CHEERS!
                  BOB
 
-----Original Message-----
From: pure-silver-bounce@xxxxxxxxxxxxx
[mailto:pure-silver-bounce@xxxxxxxxxxxxx] On Behalf Of mail1
Sent: Saturday, February 07, 2009 5:06 AM
To: pure-silver@xxxxxxxxxxxxx
Subject: [pure-silver] Re: ZONE VI VC HEAD, was No More Below the Lens
Polymax Filter Kits?
 
I retested the Zone VI type 1 VC Head with a cc40y filter, using Ilford RC
CV IV paper and as I suspected the cc40y filter attenuated the blue so that
the Hard Maximum - Soft Minimum setting yielded the maximum ES of .83 which
is about Grade 3.75  
Soft Maximum Hard Maximum setting's yield was ES1.08 effective grade 2
normal toe.
Soft Maximum - Hard Minimum setting's yield was ES 1.50 effective grade 0
short toe. The rest of the curves followed an even decline to ES .83 with
setting Soft Maximum - Hard C,D,E setting's each yielding an ES of 1.3
 
I might retest with a cc20y filter to see if a higher paper grade is
obtainable without sacrificing the grade 0 results.
 
Jonathan Ayers [mail1@xxxxxxxxxxxxxxxxx]
 
-----Original Message-----
From: pure-silver-bounce@xxxxxxxxxxxxx
[mailto:pure-silver-bounce@xxxxxxxxxxxxx] On Behalf Of mail1
Sent: Friday, February 06, 2009 11:14 AM
To: pure-silver@xxxxxxxxxxxxx
Subject: [pure-silver] Re: ZONE VI VC HEAD, was No More Below the Lens
Polymax Filter Kits?
 
I will retest with a cc40y when I get a chance. I wonder if the addition of
the cc40Y filter might attenuate the blue to the point it could cause some
problems with obtaining grade 4 or grade 5?
 
Jonathan Ayers  [mail1@xxxxxxxxxxxxxxxxx]
 
-----Original Message-----
From: pure-silver-bounce@xxxxxxxxxxxxx
[mailto:pure-silver-bounce@xxxxxxxxxxxxx] On Behalf Of Robert Krawiec
Sent: Friday, February 06, 2009 10:42 AM
To: pure-silver@xxxxxxxxxxxxx
Subject: [pure-silver] Re: ZONE VI VC HEAD, was No More Below the Lens
Polymax Filter Kits?
 
Yes, the is more or less what I am seeing. It isn't the way the head is
supposed to work though!
 
I was told that placing a yellow filter (cc40y?) between the head and the
neg stage will give you performance as expected, i.e. soft and hard at max
should be close to grade 2, but I haven't tried it yet.
 
Rob
 
 
--- On Fri, 2/6/09, mail1 <mail1@xxxxxxxxxxxxxxxxx> wrote:
 
> From: mail1 <mail1@xxxxxxxxxxxxxxxxx>
> Subject: [pure-silver] Re: ZONE VI VC HEAD, was No More Below the Lens
Polymax Filter Kits?
> To: pure-silver@xxxxxxxxxxxxx
> Date: Friday, February 6, 2009, 2:01 AM
> Has your VC head always responded it this way? My ZoneVI VC
> type 1
> 5"x7"light source also requires that I adjust
> below the minimum Blue tube
> setting; in fact I have calibrated the rheostat with three
> red lines below
> the minimum setting. 
> 
> Soft Max: Hard off     distorted curve during plotting
> IDmax 1.18
> Soft Max: Hard Min-3   Grade 0 Normal toe
> Soft Max: Hard Min-2         1 Normal Toe
> Soft Max: Hard Min-1         2 Long Toe
> Soft Max: Hard Min.          2 Normal Toe
> 
> The exposure time change from Soft max: Hard Min-3 to Soft
> max: Hard Min. is
> about 1/2 stop. As the Blue light increases the exposure
> shortens, some of
> the time difference is controlled by the Metrolux Timers
> sensor, but this
> does not adjust for the speed change of the paper.
> 
> With my Aristo VCL4500 I use the green tube rheostat to
> reduce the green
> tube output to obtain Grade 4 and 5.
> The Metrolux timer sensor does a good job of adjusting for
> the light output.
> I got really lucky with my sensor placement during its
> install.
> 
> Jonathan Ayers  [mail1@xxxxxxxxxxxxxxxxx]
> 
> 
> -----Original Message-----
> From: pure-silver-bounce@xxxxxxxxxxxxx
> [mailto:pure-silver-bounce@xxxxxxxxxxxxx] On Behalf Of
> Robert Krawiec
> Sent: Thursday, February 05, 2009 1:19 PM
> To: pure-silver@xxxxxxxxxxxxx
> Subject: [pure-silver] Re: ZONE VI VC HEAD, was No More
> Below the Lens
> Polymax Filter Kits?
> 
> I've been following this thread with interest...I have
> a Zone VI type I VC
> head, and unfortunately the soft light is so weak now that
> in order to get a
> grade 2 I have to turn the hard light right down to almost
> minimum, with
> ensuing very long exposure times.
> 
> Calumet have basically ignored my requests for help.
> 
> Aristo will build a new set of tubes into the head for
> around $1,000. I'm in
> two minds whether to do this. I really like being able to
> print polaroid 55
> negs uncropped and I haven't found an alternative
> enlarger that will do this
> and fit in my basement.
> 
> Rob
> 
> 
> --- On Thu, 2/5/09, Eric Neilsen Photography
> <ej@xxxxxxxxxxxxxxxxxxxxxxxxxx>
> wrote:
> 
> > From: Eric Neilsen Photography
> <ej@xxxxxxxxxxxxxxxxxxxxxxxxxx>
> > Subject: [pure-silver] Re: ZONE VI VC HEAD, was No
> More Below the Lens
> Polymax Filter Kits?
> > To: pure-silver@xxxxxxxxxxxxx
> > Date: Thursday, February 5, 2009, 10:31 AM
> > Bob, I printed side by side with a Zone VI and an
> Aristo VC
> > head. The Artiso
> > was by far a faster, broader spectrum, more reliable
> and
> > consistent head
> > than the Zone VI which I consider a PIA to use. The
> > enlarger column itself
> > also had some adjustment issue which compared to the
> Omega
> > chassis made
> > working with it a big pain.
> > 
> > I had the Aristo hooked up with a Metrolux II timer
> which
> > was also a great
> > timer. Allows for the integration of a light source
> either
> > the enlarger
> > source or UV. 
> > 
> > Eric 
> > 
> > Eric Neilsen Photography
> > 4101 Commerce Street, Suite 9
> > Dallas, TX 75226
> > 214-827-8301
> > www.ericneilsenphotography.com
> >  
> > SKYPE   ejprinter
> > -----Original Message-----
> > From: pure-silver-bounce@xxxxxxxxxxxxx
> > [mailto:pure-silver-bounce@xxxxxxxxxxxxx] On Behalf Of
> BOB
> > KISS
> > Sent: Wednesday, February 04, 2009 5:48 AM
> > To: pure-silver@xxxxxxxxxxxxx
> > Subject: [pure-silver] ZONE VI VC HEAD, was No More
> Below
> > the Lens Polymax
> > Filter Kits?
> > 
> > DEAR JOHN,
> >   I would be very interested in the reasons you
> don't
> > like the Zone VI
> > VC head.  I have been considering buying a cold light
> VC
> > head (no rush) and
> > I was trying to decide which one to get.
> >         CHEERS!
> >               BOB
> > 
> > -----Original Message-----
> > From: pure-silver-bounce@xxxxxxxxxxxxx
> > [mailto:pure-silver-bounce@xxxxxxxxxxxxx] On Behalf Of
> john
> > stockdale
> > Sent: Wednesday, February 04, 2009 7:42 AM
> > To: pure-silver@xxxxxxxxxxxxx
> > Subject: [pure-silver] Re: No More Below the Lens
> Polymax
> > Filter Kits?
> > 
> > Eric, I have a Zone VI VC head that I don't want,
> but I
> > wouldn't 
> > recommend it for various reasons. I can give you
> details if
> > you're 
> > interested.
> > Regards, John
> > 
> > =====================
> > Eric Nelson wrote:
> > > Thanks John I'm already on the lookout and
> have
> > added aristo and zone 
> > > vi to my saved searches on ebay.  I'll have a
> chat
> > w/Kodak tomorrow 
> > > and see what the story is on the filters.
> > > Eric
> > >
> > >
> > >
> >
> ------------------------------------------------------------------------
> > > *From:* john stockdale <j.sto@xxxxxxxxxxx>
> > > *To:* pure-silver@xxxxxxxxxxxxx
> > > *Sent:* Tuesday, February 3, 2009 11:59:18 PM
> > > *Subject:* [pure-silver] Re: No More Below the
> Lens
> > Polymax Filter Kits?
> > >
> > > The Aristo VCL4500 with an RH Designs Stop Clock
> Vario
> > is a sweet, if 
> > > expensive, solution.
> > >
> > > John
> > >
> > > Eric Nelson wrote:
> > > > Man, and the list here was just touching on
> this
> > subject recently 
> > > too.  So I did my online searches and have come
> up
> > empty handed from 
> > > Freestyle to Adorama to B&H to ebay.
> > > > Now /that's/ sad.  At least the filters
> are
> > still available and I 
> > > can cut them down for the holders which I still
> have. 
> > Ilford's 
> > > filters stink as I've been using them a month
> or
> > so.  The contrast 
> > > jumps dramatically between 1/2 grades and
> exposure is
> > nowhere near 
> > > similar from one filter to the next using
> /*their*/
> > frakkin' paper.  
> > > Maybe I just "owe myself" a VC head and
> be
> > done with it.
> > > >
> > > > Sigh.
> > > >
> > >
> > >
> >
> 
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