Re: VDB

[Sandy King <sanking@clemson.edu>]

Title: Re: VDB

Jordan,

My workspace is not really that intricate at all. It is a relatively small room that I share with washer and dryer. I have optimized space, but definitley nothing fancy here.

The humidifier is a $50 unit from Home Depot.

Sandy

At 10:40 PM -0500 11/10/07, Jordan Wosnick wrote:

> On Nov 9, 2007 3:48 PM, Sandy King <sanking@clemson.edu>
> wrote:
> > You are smart to work in a humidified environment. The
> > difference in potential Dmax in VDB between working at RH of 35% and
> > RH of 55% is significant, with much advantage to the higher RH. At 35%
> > RH and single coating I am lucky to get a Dmax of 1.30, whereas at 55%
> > Damx is usually 1.45 or higher.
> >
> > In the winter I run a humidifier in the workroom whenever
> > I plan to print with VDB, kallitype or pt./pd. It is the type that
> > turns off and on to adjust to a certain RH, and I keep it set for 55%
> > RH. Don't just turn it on and start printing when the room RH reaches
> > 55%. You need also to make sure that the paper has had enough time to
> > absorb moisture from the air to reach equilibrium at the same RH.
> Sandy -- My system is nowhere near as intricate as yours. I am in an
> apartment and just use a corner of the kitchen for all my photographic
> work (no dedicated space for photography, regrettably). I put a pot of
> water on the stove and keep it at a very low simmer for the duration
> of the printing session. When the kitchen door is closed, this
> produces a fairly stable RH of 50% or so. Low-tech, but it does make
> my VDB results much better. I coat and print in this environment.
>
> I am looking forward to doing more VDB work after I find a more
> affordable / more available OHP material -- but that's a topic for
> another thread.
>
> Jordan
>
>
> --
> Jordan Wosnick
> jwosnick@gmail.com