Re: Method(s) to determine exact dry down.

[Tim Rudman <tim.rudman@xxxxxxxxxx>]

Don Bryant wrote:
> 
> Dr. Rudman,
> 
> I'm very pleased to discover your presence here on the infrared forum.
> 
> I purchased your master printing book a good while back and have benefited
> greatly from it.
> 
> I do have 1 consistent problem when printing, and that is proper adjustment
> for dry down.
> 
> Is there a way to calculate the appropriate or correct amount of exposure
> change?
> I realize that the % of dry down change will vary from paper to paper, I
> believe I've seen a method for determining dry down before but I just can't
> find it.  Any suggestions will be appreciated.
> 
> Thanks,
> Don  Bryant
> 
> P.S. Do you have a web page? Also where can I find a list of your other book
> titles. And ... I think we are all looking forward to your book on infrared
> and lith printing.
> 
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Dear Don
Thank you for your kind words about my book - it's really nice to get
such positive feedback. It may sound odd but I didn't know it had a
following in the States until I got onto the 'net' a week ago. It's been
quite a revelation to me.

An awful lot has been written about 'drydown' and it does cause many
people a problem. The brightness of the wet bench light has been blamed
along with suggestions that it doesn't really exist. Anyone who has made
a 'Max flash' test strip for pre-flashing fibre based paper though will
be aware that the threshold strip may be invisible until the paper is
dry.

Whatever your views are it is none the less essential to find a way of
coping with it. Eventually it just comes with practice and experience -
but until then try making the best straight print you can with the
 fullest poss range of light tones going to paper base white - dry it
down fully - make an identical wet print and compare the h/lights - then
make a sries of prints increasing exposure in 1/4 or 1/8 stop increments
until the wet matches the dry. thats your difference for that paper 
(and only that paper) in your dark room viewing area - which after all
is all that really matters.

No I haven't got a web site - I'm still very new to all this and don't
know much about it yet. I'm obviously going to need some help!

Re your comments on next book - it's on lith printing, not I-R, but will
have a lot of I-R snaps in it. It's looking really good and I'm getting
quite excited about it. I still hope to return to and finish my book on
I-R later - it will be different to others I hope - but that's for the
future.

Tim
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*  To remove yourself from this list, send:          *
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