RE: VDB

[Loris Medici <mail@loris.medici.name>]

Yes indeed; you loose the reddish brown color for dark brown black,
purple black and/or gray black colors. Straight Vandyke and/or Kallitype
and/or Argyrotype (or any other untoned nanoparticle silver image)
doesn't make me feel comfortable. That's why I was interested in
Cuprotype; if its stability is close to Cyanotype, then it can be a
strong substitute in making reddish brown images...

Regards,
Loris.

-----Original Message-----
From: Don Bryant [mailto:dsbryant@bellsouth.net] 
Sent: Monday, November 05, 2007 6:50 PM
To: alt-photo-process-l@usask.ca
Subject: RE: VDB


I don't disagree with Loris or Sandy about toning though I think it
should be noted that toning VDB causes a change in the color of the
final print. As for doubled coating, I prefer double coated prints,
toned or untoned and would suggest that one should perform their own
tests to see what works for them. There are a lot of ways to print VDB
and it takes some time to sort them all out to discover what the
variations look like.

I should also mention that additives to the sensitizer can be used to
influenced the final color of the print, toned or untoned.

I think Ware's Agyrotype process is worth exploring too, I keep telling
myself to do that but keep getting side tracked on to other things.

Don Bryant


-----Original Message-----
From: Sandy King [mailto:sanking@clemson.edu] 
Sent: Monday, November 05, 2007 11:30 AM
To: alt-photo-process-l@usask.ca
Subject: RE: VDB

I agree with Loris. You can get as much or more Dmax with VDB by gold 
toning (or toning with platinum or palladium) before fixing than you 
can get by double coating.

In general it is best practice to tone as soon as possible, i.e. 
right after the first wash in water. In fact, even protracted first 
water bath can reduce the silver image if too long. Too long for me 
is more than a minute.

Sandy






At 10:20 AM +0200 11/5/07, Loris Medici wrote:
>Double coated is more punchy - better looking (to me) because of 
>stronger Dmax... Since gold toning (before fixing) increase Dmax, 
>single coating + gold toning is fine (for me) too.
>
>In fact, I no-more double coat -> I prefer the extra protection I get 
>with gold toning, and the results are equally punchy / strong. Since 
>gold is relatively cheap in my location I'm not complaining.
>
>Regards,
>Loris.
>
>-----Original Message-----
>From: Gordon Holtslander [mailto:gordon.holtslander@usask.ca]
>Sent: Monday, November 05, 2007 6:35 AM
>To: alt-photo-process-l@usask.ca
>Subject: Re: VDB
>
>
>On Sunday 04 November 2007 02:34:25 pm Loris Medici wrote:
>
>>
>>  I'm happy with my single coat Vandykes as long as I tone them with  
>> thiourea-gold toner. I'm not happy with my untoned Vandykes unless I

>> double coat.
>>
>>  Regards,
>>  Loris.
>>
>
>
>How do the single and double coated VDB look different?
>
>Gord